How much is the window opened?

Dependencies:   BLE_API VL6180 mbed nRF51822

Fork of BLE_Sensor_VL6180_window by Eric Tsai

Committer:
electronichamsters
Date:
Tue May 29 04:21:20 2018 +0000
Revision:
14:481c633b9fb2
Parent:
13:7fc157a0187d
tested

Who changed what in which revision?

UserRevisionLine numberNew contents of line
electronichamsters 12:1049290dd610 1 /*
electronichamsters 12:1049290dd610 2 * Copyright (c) Eric Tsai 2017
electronichamsters 14:481c633b9fb2 3 *
electronichamsters 12:1049290dd610 4 *
electronichamsters 12:1049290dd610 5 * Licensed under the Apache License, Version 2.0 (the "License");
electronichamsters 12:1049290dd610 6 * you may not use this file except in compliance with the License.
electronichamsters 12:1049290dd610 7 * You may obtain a copy of the License at
electronichamsters 12:1049290dd610 8 *
electronichamsters 12:1049290dd610 9 * http://www.apache.org/licenses/LICENSE-2.0
electronichamsters 12:1049290dd610 10 *
electronichamsters 12:1049290dd610 11 * Unless required by applicable law or agreed to in writing, software
electronichamsters 12:1049290dd610 12 * distributed under the License is distributed on an "AS IS" BASIS,
electronichamsters 12:1049290dd610 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
electronichamsters 12:1049290dd610 14 * See the License for the specific language governing permissions and
electronichamsters 12:1049290dd610 15 * limitations under the License.
electronichamsters 12:1049290dd610 16 *
electronichamsters 12:1049290dd610 17 *
electronichamsters 12:1049290dd610 18 * Credit: started with the basic BLE Temperature Beacon code from mbed Bluetooth Low Energy team
electronichamsters 12:1049290dd610 19 * https://developer.mbed.org/teams/Bluetooth-Low-Energy/code/BLE_TemperatureBeacon/file/0a8bbb6dea16/main.cpp
electronichamsters 12:1049290dd610 20 *
electronichamsters 13:7fc157a0187d 21 * BLE sensor as Beacon advertisements. Intended to function with specific BLE observer.
electronichamsters 13:7fc157a0187d 22 * Tested on nRF51822 targets on mbed.
electronichamsters 12:1049290dd610 23 * keywords: todo, tochange
electronichamsters 12:1049290dd610 24 */
electronichamsters 8:46c5e0bfab05 25
sunsmile2015 0:3dc6e424dba0 26
electronichamsters 8:46c5e0bfab05 27 extern "C"
electronichamsters 8:46c5e0bfab05 28 {
electronichamsters 12:1049290dd610 29 #include "nrf_ecb.h" //required to call the ecb functions for encryption
electronichamsters 8:46c5e0bfab05 30 }
electronichamsters 8:46c5e0bfab05 31
sunsmile2015 0:3dc6e424dba0 32 #include "mbed.h"
rgrover1 5:f4d74a8cad43 33 #include "toolchain.h"
sunsmile2015 0:3dc6e424dba0 34 #include "ble/BLE.h"
electronichamsters 12:1049290dd610 35 //#include "TMP_nrf51/TMP_nrf51.h"
electronichamsters 12:1049290dd610 36 //#include "TMP102.h"
electronichamsters 12:1049290dd610 37 #include "VL6180.h" //https://developer.mbed.org/users/sburg/code/VL6180/
electronichamsters 12:1049290dd610 38 //https://developer.mbed.org/users/sburg/notebook/vl6180-time-of-flight-range-finder/
electronichamsters 8:46c5e0bfab05 39
electronichamsters 12:1049290dd610 40 /*******************************************************************************************
electronichamsters 12:1049290dd610 41 * START tochange: items that may need customization depending on sensors, hardware, and desired behavior
electronichamsters 12:1049290dd610 42 *******************************************************************************************/
electronichamsters 13:7fc157a0187d 43 uint16_t Periodic_Update_Seconds = 10; //number of seconds between periodic I/O status re-transmits 900s =15 min.
electronichamsters 12:1049290dd610 44 #define MyDebugEnb 0 //enables serial output for debug, consumes ~1mA when idle
electronichamsters 12:1049290dd610 45 uint8_t magnet_near=0; //this I/O, specifically for reed switch sensor
electronichamsters 12:1049290dd610 46 //TMP102 tempI2C(p0, p1, 0x90);
electronichamsters 12:1049290dd610 47 //VL6180 rf(p12, p15); //I2C purple board sda=p12, scl=p15
electronichamsters 12:1049290dd610 48 VL6180 rf(p9, p11); //I2C purple board sda=p12, scl=p15
electronichamsters 12:1049290dd610 49 //DigitalOut pinHandShake(p0); //shutdown pin
electronichamsters 12:1049290dd610 50 //VL6180 rf(p12, p15); //I2C sda=P0 and scl=p1
electronichamsters 12:1049290dd610 51 /* hardware interrupt pins, selected based on hardware
electronichamsters 12:1049290dd610 52 *Syntax: Pin "P0.4" on nRF51822 documentation is mbed "p4".
electronichamsters 12:1049290dd610 53 * InterruptIn is pulled-up. GND the pin to activate.
electronichamsters 12:1049290dd610 54 */
electronichamsters 12:1049290dd610 55 InterruptIn button1(p0); //nRF51822 P0.0
electronichamsters 13:7fc157a0187d 56 InterruptIn button2(p1); //nRF51822 P0.1
electronichamsters 10:79e8f92ef156 57
electronichamsters 11:4f925834167d 58
electronichamsters 12:1049290dd610 59 /******************************************************************************************
electronichamsters 12:1049290dd610 60 * END tochange
electronichamsters 12:1049290dd610 61 *******************************************************************************************/
electronichamsters 8:46c5e0bfab05 62
electronichamsters 12:1049290dd610 63
electronichamsters 8:46c5e0bfab05 64 #if MyDebugEnb
electronichamsters 12:1049290dd610 65 // if you see ~1mA consumption during sleep, that's because MyDebugEnb==1, it's enabled.
electronichamsters 8:46c5e0bfab05 66 Serial device(p9, p11); //nRF51822 uart : TX=p9. RX=p11
electronichamsters 8:46c5e0bfab05 67 #endif
electronichamsters 8:46c5e0bfab05 68
electronichamsters 12:1049290dd610 69 static Ticker Tic_Stop_Adv; //used to stop advertising after X seconds
electronichamsters 12:1049290dd610 70 static Ticker Tic_Debounce; //debounce I/O
electronichamsters 12:1049290dd610 71 static Ticker Tic_Periodic; //transmit sensor data on a periodic basis outside I/O events
electronichamsters 8:46c5e0bfab05 72
electronichamsters 12:1049290dd610 73 const uint16_t Periodicity = 1800; //birthday periodicity used for spoof checking, must match gateway. Should be 1800 seconds for 30minutes
electronichamsters 12:1049290dd610 74 static Timer Tmr_From_Birthday; //holds number of seconds since birthday, for spoof detection
electronichamsters 12:1049290dd610 75 static Ticker Tic_Birthday; //resets Tmr_From_Birthday every Periodicity seconds, for spoof detection
electronichamsters 12:1049290dd610 76
electronichamsters 8:46c5e0bfab05 77
electronichamsters 12:1049290dd610 78 static bool Flag_Update_IO = false; //flag to indicate event is hardware interrupt
electronichamsters 12:1049290dd610 79 static bool Flag_Periodic_Call = false; //flag to indicate event is periodic callback
electronichamsters 12:1049290dd610 80 static bool Flag_Detach_Adv_Tic = false; //flag to stop advertising
electronichamsters 12:1049290dd610 81
electronichamsters 12:1049290dd610 82 /* Optional: Device Name, add for human read-ability */
electronichamsters 12:1049290dd610 83 const static char DEVICE_NAME[] = "LOL";
electronichamsters 12:1049290dd610 84
electronichamsters 8:46c5e0bfab05 85
electronichamsters 12:1049290dd610 86 //Advertisement Data
electronichamsters 12:1049290dd610 87 //note: AdvData[] holds bytes [5] to byte [30] of entire advertising data. The user content part after ADV flag and header
electronichamsters 12:1049290dd610 88 static uint8_t AdvData[] = {0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0}; //26 Bytes manufacturer specific data
electronichamsters 12:1049290dd610 89 char buffer[10]={0, 0, 0, 0, 0, 0, 0, 0, 0, 0}; //hold I/O reading json
electronichamsters 12:1049290dd610 90 char bat_volt_char[6] = {0, 0, 0, 0, 0, 0}; //hold json for battery reading
electronichamsters 12:1049290dd610 91 uint8_t Adv_First_Section[10]; //holds the first several bytes with a pattern indicating this sensor is "one of ours"
electronichamsters 12:1049290dd610 92 uint8_t mac_reverse[6] = {0x0,0x0,0x0,0x0,0x0,0x0}; //mac address for this module
electronichamsters 12:1049290dd610 93 char sensor_char[8] = {0, 0, 0, 0, 0, 0}; //hold json for temperature
rgrover1 5:f4d74a8cad43 94
electronichamsters 12:1049290dd610 95 /***** Advertisement structure is 31 Bytes ****************
electronichamsters 12:1049290dd610 96
electronichamsters 12:1049290dd610 97 https://docs.mbed.com/docs/ble-intros/en/latest/Advanced/CustomGAP/
electronichamsters 8:46c5e0bfab05 98
electronichamsters 12:1049290dd610 99 Full Advertisement:
electronichamsters 12:1049290dd610 100 First 5 bytes are set by stack according to flag and header parameters.
electronichamsters 12:1049290dd610 101 Last 26 bytes are user data
electronichamsters 12:1049290dd610 102 -- tabbed --
electronichamsters 12:1049290dd610 103 Byte 0 | AD1 Length | 0x02 | AD1 is 2 bytes long
electronichamsters 12:1049290dd610 104 Byte 1 | AD1 Type | 0x01 | AD1 Data interpreted as flag
electronichamsters 12:1049290dd610 105 Byte 2 | AD1 Data 0 | 0x06 | AD1 Data flag mean "00000110"
electronichamsters 12:1049290dd610 106 Byte 3 | AD2 Length | 0x1B | AD2 is 27 bytes (0x1B) long (rest of this data)
electronichamsters 12:1049290dd610 107 Byte 4 | AD2 Type | 0xFF | 0xFF mean Manufacturer Specific Data
electronichamsters 12:1049290dd610 108 Byte 5 | AD2 Data 0 | ADV_Data[0] | "our device" flag, MAC[3]
electronichamsters 12:1049290dd610 109 Byte 6 | AD2 Data 1 | ADV_Data[1] | "out device" flag, MAC[2]
electronichamsters 12:1049290dd610 110 Byte 7 | AD2 Data 2 | ADV_Data[2] | "out device" flag, MAC[1]
electronichamsters 12:1049290dd610 111 Byte 8 | AD2 Data 3 | ADV_Data[3] | "out device" flag, MAC[0]
electronichamsters 12:1049290dd610 112 Byte 9 | AD2 Data 4 | ADV_Data[4] | battery voltage json MSB, ie 3 in 3.14
electronichamsters 12:1049290dd610 113 Byte 10 | AD2 Data 5 | ADV_Data[5] | battery voltage json
electronichamsters 12:1049290dd610 114 Byte 11 | AD2 Data 6 | ADV_Data[6] | battery voltage json
electronichamsters 12:1049290dd610 115 Byte 12 | AD2 Data 7 | ADV_Data[7] | battery voltage json LSB, ie 4 in 3.14
electronichamsters 12:1049290dd610 116 Byte 13 | AD2 Data 8 | ADV_Data[8] | reserved
electronichamsters 12:1049290dd610 117 Byte 14 | AD2 Data 9 | ADV_Data[9] | reserved
electronichamsters 12:1049290dd610 118 Byte 15 | AD2 Data 10 | ADV_Data[10] Encrypted | spoof - clock high byte, range 0 to 1800 seconds
electronichamsters 12:1049290dd610 119 Byte 16 | AD2 Data 11 | ADV_Data[11] Encrypted | spoof - clock low byte
electronichamsters 12:1049290dd610 120 Byte 17 | AD2 Data 12 | ADV_Data[12] Encrypted | Xmit_Cnt - increments per transmit event, 0-255
electronichamsters 12:1049290dd610 121 Byte 18 | AD2 Data 13 | ADV_Data[13] Encrypted | JSON[0]
electronichamsters 12:1049290dd610 122 Byte 19 | AD2 Data 14 | ADV_Data[14] Encrypted | JSON[1]
electronichamsters 12:1049290dd610 123 Byte 20 | AD2 Data 15 | ADV_Data[15] Encrypted | JSON[2]
electronichamsters 12:1049290dd610 124 Byte 21 | AD2 Data 16 | ADV_Data[16] Encrypted | JSON[3]
electronichamsters 12:1049290dd610 125 Byte 22 | AD2 Data 17 | ADV_Data[17] Encrypted | JSON[4]
electronichamsters 12:1049290dd610 126 Byte 23 | AD2 Data 18 | ADV_Data[18] Encrypted | JSON[5]
electronichamsters 12:1049290dd610 127 Byte 24 | AD2 Data 19 | ADV_Data[19] Encrypted | JSON[6]
electronichamsters 12:1049290dd610 128 Byte 25 | AD2 Data 20 | ADV_Data[20] Encrypted | JSON[7]
electronichamsters 12:1049290dd610 129 Byte 26 | AD2 Data 21 | ADV_Data[21] Encrypted | JSON[8]
electronichamsters 12:1049290dd610 130 Byte 27 | AD2 Data 22 | ADV_Data[22] Encrypted | JSON[9]
electronichamsters 12:1049290dd610 131 Byte 28 | AD2 Data 23 | ADV_Data[23] Encrypted | JSON[10]
electronichamsters 12:1049290dd610 132 Byte 29 | AD2 Data 24 | ADV_Data[24] Encrypted | JSON[11]
electronichamsters 12:1049290dd610 133 Byte 30 | AD2 Data 25 | ADV_Data[25] Encrypted | JSON[12]
electronichamsters 8:46c5e0bfab05 134
electronichamsters 12:1049290dd610 135 ***************************************************/
electronichamsters 8:46c5e0bfab05 136
electronichamsters 8:46c5e0bfab05 137
electronichamsters 8:46c5e0bfab05 138 static uint8_t key[16] = {0x1,0x2,0x3,0x4,0x1,0x2,0x3,0x4,0x1,0x2,0x3,0x4,0x1,0x2,0x3,0x4};
electronichamsters 8:46c5e0bfab05 139 //26 bytes adv data
electronichamsters 8:46c5e0bfab05 140 static uint8_t encrypted[26] = {0x0,0x0,0x0,0x1,0x1,0x1,0x2,0x2,0x2,0x3,0x3,0x3,0x4,0x4,0x4,0x5,0x5,0x5,0x6,0x6,0x6,0x7,0x7,0x7,0x8,0x8}; /* Example of hex data */
electronichamsters 8:46c5e0bfab05 141 //static uint8_t key_buf[16] = {0x1,0x2,0x3,0x4,0x1,0x2,0x3,0x4,0x1,0x2,0x3,0x4,0x1,0x2,0x3,0x4};
electronichamsters 8:46c5e0bfab05 142 static uint8_t key_buf[16] = {0x1, 0x2, 0x3, 0x4, 0x5, 0x6, 0x7, 0x1, 0x2, 0x3, 0x4, 0x5, 0x6, 0x7, 0x1, 0x2};
electronichamsters 8:46c5e0bfab05 143 static uint8_t src_buf[16] = {0x1,0x2,0x3,0x4,0x1,0x2,0x3,0x4,0x1,0x2,0x3,0x4,0x1,0x2,0x3,0x4};
electronichamsters 8:46c5e0bfab05 144 static uint8_t des_buf[16] = {0x1,0x2,0x3,0x4,0x1,0x2,0x3,0x4,0x1,0x2,0x3,0x4,0x1,0x2,0x3,0x4};
electronichamsters 8:46c5e0bfab05 145
electronichamsters 10:79e8f92ef156 146 uint8_t Xmit_Cnt = 1;
electronichamsters 13:7fc157a0187d 147 uint8_t Recent_Cnt = 0;
electronichamsters 13:7fc157a0187d 148 const uint8_t Recent_max = 50;
electronichamsters 8:46c5e0bfab05 149
electronichamsters 8:46c5e0bfab05 150 /* **** NOT USED **** */
electronichamsters 8:46c5e0bfab05 151 //16byte UUID loading happens here
electronichamsters 8:46c5e0bfab05 152 //Look at <GapAdvertisingData.h> for rest of definition
sunsmile2015 4:e5fa4c8838db 153 struct ApplicationData_t {
electronichamsters 8:46c5e0bfab05 154 //Byte 0: AppID High Byte
electronichamsters 8:46c5e0bfab05 155 //Byte 1: AppID Low Byte
electronichamsters 8:46c5e0bfab05 156 //Byte 2: sensor High Word
electronichamsters 8:46c5e0bfab05 157 //Byte 3:
electronichamsters 8:46c5e0bfab05 158 //Byte 4:
electronichamsters 8:46c5e0bfab05 159 //Byte 5: sensor Low Byte
electronichamsters 8:46c5e0bfab05 160
electronichamsters 8:46c5e0bfab05 161
electronichamsters 8:46c5e0bfab05 162 //app ID is 16 bit, (0xFEFE)
electronichamsters 8:46c5e0bfab05 163 uint16_t applicationSpecificId; /* An ID used to identify temperature value in the manufacture specific AD data field */
electronichamsters 8:46c5e0bfab05 164
electronichamsters 12:1049290dd610 165 //TMP_nrf51::TempSensorValue_t tmpSensorValue; /* this is a float (32-bit), user data */
rgrover1 5:f4d74a8cad43 166 } PACKED;
sunsmile2015 0:3dc6e424dba0 167
electronichamsters 8:46c5e0bfab05 168
electronichamsters 8:46c5e0bfab05 169
electronichamsters 8:46c5e0bfab05 170 void debounce_Callback(void)
electronichamsters 8:46c5e0bfab05 171 {
electronichamsters 13:7fc157a0187d 172 Tic_Debounce.detach();
electronichamsters 13:7fc157a0187d 173 Flag_Update_IO = true; //start advertising
electronichamsters 8:46c5e0bfab05 174 /* Note that the buttonPressedCallback() executes in interrupt context, so it is safer to access
electronichamsters 8:46c5e0bfab05 175 * BLE device API from the main thread. */
electronichamsters 13:7fc157a0187d 176 Recent_Cnt = 0; //reset this to cause sensor shorten periodic update period
electronichamsters 8:46c5e0bfab05 177 }
electronichamsters 8:46c5e0bfab05 178
electronichamsters 13:7fc157a0187d 179
electronichamsters 12:1049290dd610 180 //ISR for I/O interrupt
electronichamsters 8:46c5e0bfab05 181 void buttonPressedCallback(void)
sunsmile2015 2:b935358da5ba 182 {
electronichamsters 13:7fc157a0187d 183 Tic_Debounce.attach(debounce_Callback, 3); //ok to attach multiple times, recent one wins
electronichamsters 8:46c5e0bfab05 184 }
electronichamsters 13:7fc157a0187d 185
electronichamsters 12:1049290dd610 186 //ISR for I/O interrupt
electronichamsters 8:46c5e0bfab05 187 void buttonReleasedCallback(void)
electronichamsters 8:46c5e0bfab05 188 {
electronichamsters 8:46c5e0bfab05 189
electronichamsters 12:1049290dd610 190 Tic_Debounce.attach(debounce_Callback, 3);
electronichamsters 8:46c5e0bfab05 191 }
electronichamsters 8:46c5e0bfab05 192
electronichamsters 8:46c5e0bfab05 193
electronichamsters 8:46c5e0bfab05 194 void stop_adv_Callback(void)
electronichamsters 8:46c5e0bfab05 195 {
electronichamsters 8:46c5e0bfab05 196 //stops advertising after X seconds
electronichamsters 8:46c5e0bfab05 197 /* Note that the Callback() executes in interrupt context, so it is safer to do
rgrover1 5:f4d74a8cad43 198 * heavy-weight sensor polling from the main thread (where we should be able to block safely, if needed). */
electronichamsters 12:1049290dd610 199 Flag_Detach_Adv_Tic = true;
electronichamsters 12:1049290dd610 200
electronichamsters 12:1049290dd610 201 }
electronichamsters 8:46c5e0bfab05 202
electronichamsters 12:1049290dd610 203 /* ****************************************
electronichamsters 12:1049290dd610 204 * Decides what actions need to be performed on periodic basis
electronichamsters 12:1049290dd610 205 *******************************************/
electronichamsters 12:1049290dd610 206 void periodic_Callback(void)
electronichamsters 12:1049290dd610 207 {
electronichamsters 12:1049290dd610 208 Flag_Update_IO = true;
electronichamsters 12:1049290dd610 209 Flag_Periodic_Call = true;
electronichamsters 12:1049290dd610 210 }
electronichamsters 12:1049290dd610 211
electronichamsters 8:46c5e0bfab05 212
electronichamsters 12:1049290dd610 213 /* ****************************************
electronichamsters 12:1049290dd610 214 * No RTC available, tickers only have a 35 minute range.
electronichamsters 12:1049290dd610 215 * So periodicity for spoof avoidance is set to 30 minutes
electronichamsters 12:1049290dd610 216 *******************************************/
electronichamsters 10:79e8f92ef156 217 void clock_reset_Callback(void)
electronichamsters 10:79e8f92ef156 218 {
electronichamsters 10:79e8f92ef156 219 #if MyDebugEnb
electronichamsters 10:79e8f92ef156 220 device.printf("===== reset timer =====");
electronichamsters 10:79e8f92ef156 221 device.printf("\r\n");
electronichamsters 10:79e8f92ef156 222 #endif
electronichamsters 12:1049290dd610 223 Tmr_From_Birthday.reset();
electronichamsters 10:79e8f92ef156 224 };
electronichamsters 10:79e8f92ef156 225
electronichamsters 12:1049290dd610 226
rgrover1 5:f4d74a8cad43 227 void setupApplicationData(ApplicationData_t &appData)
sunsmile2015 4:e5fa4c8838db 228 {
electronichamsters 8:46c5e0bfab05 229 // two byte ID: 0xFEFE
electronichamsters 8:46c5e0bfab05 230 static const uint16_t APP_SPECIFIC_ID_TEST = 0xFEFE; //2 byte application ID
andresag 7:0a8bbb6dea16 231
sunsmile2015 4:e5fa4c8838db 232 appData.applicationSpecificId = APP_SPECIFIC_ID_TEST;
sunsmile2015 0:3dc6e424dba0 233 }
sunsmile2015 0:3dc6e424dba0 234
electronichamsters 8:46c5e0bfab05 235
electronichamsters 8:46c5e0bfab05 236
andresag 7:0a8bbb6dea16 237 /**
andresag 7:0a8bbb6dea16 238 * This function is called when the ble initialization process has failled
andresag 7:0a8bbb6dea16 239 */
andresag 7:0a8bbb6dea16 240 void onBleInitError(BLE &ble, ble_error_t error)
andresag 7:0a8bbb6dea16 241 {
andresag 7:0a8bbb6dea16 242 /* Initialization error handling should go here */
andresag 7:0a8bbb6dea16 243 }
andresag 7:0a8bbb6dea16 244
electronichamsters 12:1049290dd610 245
electronichamsters 12:1049290dd610 246
andresag 7:0a8bbb6dea16 247 /**
andresag 7:0a8bbb6dea16 248 * Callback triggered when the ble initialization process has finished
andresag 7:0a8bbb6dea16 249 */
andresag 7:0a8bbb6dea16 250 void bleInitComplete(BLE::InitializationCompleteCallbackContext *params)
sunsmile2015 2:b935358da5ba 251 {
andresag 7:0a8bbb6dea16 252 BLE& ble = params->ble;
andresag 7:0a8bbb6dea16 253 ble_error_t error = params->error;
andresag 7:0a8bbb6dea16 254
andresag 7:0a8bbb6dea16 255 if (error != BLE_ERROR_NONE) {
andresag 7:0a8bbb6dea16 256 /* In case of error, forward the error handling to onBleInitError */
andresag 7:0a8bbb6dea16 257 onBleInitError(ble, error);
andresag 7:0a8bbb6dea16 258 return;
andresag 7:0a8bbb6dea16 259 }
andresag 7:0a8bbb6dea16 260
andresag 7:0a8bbb6dea16 261 /* Ensure that it is the default instance of BLE */
andresag 7:0a8bbb6dea16 262 if(ble.getInstanceID() != BLE::DEFAULT_INSTANCE) {
andresag 7:0a8bbb6dea16 263 return;
andresag 7:0a8bbb6dea16 264 }
electronichamsters 8:46c5e0bfab05 265
electronichamsters 8:46c5e0bfab05 266 /* Set device name characteristic data */
electronichamsters 8:46c5e0bfab05 267 ble.gap().setDeviceName((const uint8_t *) DEVICE_NAME);
andresag 7:0a8bbb6dea16 268
rgrover1 5:f4d74a8cad43 269 /* Setup advertising payload */
electronichamsters 8:46c5e0bfab05 270 //set modes "no EDR", "discoverable" for beacon type advertisements
rgrover1 5:f4d74a8cad43 271 ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::BREDR_NOT_SUPPORTED | GapAdvertisingData::LE_GENERAL_DISCOVERABLE);
electronichamsters 8:46c5e0bfab05 272
electronichamsters 11:4f925834167d 273
electronichamsters 8:46c5e0bfab05 274 //from GAP example
electronichamsters 8:46c5e0bfab05 275 /* Sacrifice 2B of 31B to AdvType overhead, rest goes to AdvData array you define */
electronichamsters 8:46c5e0bfab05 276 ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::MANUFACTURER_SPECIFIC_DATA, AdvData, sizeof(AdvData));
electronichamsters 8:46c5e0bfab05 277
electronichamsters 8:46c5e0bfab05 278 /* Setup advertising parameters: not connectable */
electronichamsters 8:46c5e0bfab05 279 ble.gap().setAdvertisingType(GapAdvertisingParams::ADV_NON_CONNECTABLE_UNDIRECTED);
electronichamsters 12:1049290dd610 280 ble.gap().setAdvertisingInterval(200); //one advertisment every 300ms. Self tickers, so you don't have to worry.
electronichamsters 8:46c5e0bfab05 281
electronichamsters 12:1049290dd610 282 }
electronichamsters 8:46c5e0bfab05 283
electronichamsters 8:46c5e0bfab05 284
electronichamsters 11:4f925834167d 285 //not needed anymore
electronichamsters 8:46c5e0bfab05 286 void my_analogin_init(void)
electronichamsters 8:46c5e0bfab05 287 {
electronichamsters 10:79e8f92ef156 288
electronichamsters 8:46c5e0bfab05 289 NRF_ADC->CONFIG = (ADC_CONFIG_RES_10bit << ADC_CONFIG_RES_Pos) |
electronichamsters 8:46c5e0bfab05 290 (ADC_CONFIG_INPSEL_SupplyOneThirdPrescaling << ADC_CONFIG_INPSEL_Pos) |
electronichamsters 10:79e8f92ef156 291 //(ADC_CONFIG_INPSEL_AnalogInputOneThirdPrescaling << ADC_CONFIG_INPSEL_Pos) |
electronichamsters 8:46c5e0bfab05 292 (ADC_CONFIG_REFSEL_VBG << ADC_CONFIG_REFSEL_Pos) |
electronichamsters 8:46c5e0bfab05 293 (ADC_CONFIG_PSEL_Disabled << ADC_CONFIG_PSEL_Pos) |
electronichamsters 10:79e8f92ef156 294 //(ADC_CONFIG_PSEL_AnalogInput4 << ADC_CONFIG_PSEL_Pos) |
electronichamsters 8:46c5e0bfab05 295 (ADC_CONFIG_EXTREFSEL_None << ADC_CONFIG_EXTREFSEL_Pos);
electronichamsters 10:79e8f92ef156 296 NRF_ADC->ENABLE = ADC_ENABLE_ENABLE_Enabled;
electronichamsters 8:46c5e0bfab05 297 }
sunsmile2015 2:b935358da5ba 298
electronichamsters 12:1049290dd610 299
electronichamsters 12:1049290dd610 300 /* ****************************************
electronichamsters 12:1049290dd610 301 * Read battery voltage using bandgap reference
electronichamsters 12:1049290dd610 302 * shunt Vdd to ADC, thanks to Marcelo Salazar's notes here:
electronichamsters 12:1049290dd610 303 * https://developer.mbed.org/users/MarceloSalazar/notebook/measuring-battery-voltage-with-nordic-nrf51x/
electronichamsters 12:1049290dd610 304 *******************************************/
electronichamsters 12:1049290dd610 305 uint16_t read_bat_volt(void)
electronichamsters 8:46c5e0bfab05 306 {
electronichamsters 10:79e8f92ef156 307 //10 bit resolution, route Vdd as analog input, set ADC ref to VBG band gap
electronichamsters 10:79e8f92ef156 308 //disable analog pin select "PSEL" because we're using Vdd as analog input
electronichamsters 10:79e8f92ef156 309 //no external voltage reference
electronichamsters 10:79e8f92ef156 310 NRF_ADC->CONFIG = (ADC_CONFIG_RES_10bit << ADC_CONFIG_RES_Pos) |
electronichamsters 10:79e8f92ef156 311 (ADC_CONFIG_INPSEL_SupplyOneThirdPrescaling << ADC_CONFIG_INPSEL_Pos) |
electronichamsters 10:79e8f92ef156 312 //(ADC_CONFIG_INPSEL_AnalogInputOneThirdPrescaling << ADC_CONFIG_INPSEL_Pos) |
electronichamsters 10:79e8f92ef156 313 (ADC_CONFIG_REFSEL_VBG << ADC_CONFIG_REFSEL_Pos) |
electronichamsters 10:79e8f92ef156 314 (ADC_CONFIG_PSEL_Disabled << ADC_CONFIG_PSEL_Pos) |
electronichamsters 10:79e8f92ef156 315 //(ADC_CONFIG_PSEL_AnalogInput4 << ADC_CONFIG_PSEL_Pos) |
electronichamsters 10:79e8f92ef156 316 (ADC_CONFIG_EXTREFSEL_None << ADC_CONFIG_EXTREFSEL_Pos);
electronichamsters 10:79e8f92ef156 317
electronichamsters 10:79e8f92ef156 318 //NRF_ADC->CONFIG &= ~ADC_CONFIG_PSEL_Msk;
electronichamsters 10:79e8f92ef156 319 //NRF_ADC->CONFIG |= ADC_CONFIG_PSEL_Disabled << ADC_CONFIG_PSEL_Pos;
electronichamsters 10:79e8f92ef156 320 NRF_ADC->ENABLE = ADC_ENABLE_ENABLE_Enabled;
electronichamsters 10:79e8f92ef156 321 NRF_ADC->TASKS_START = 1;
electronichamsters 10:79e8f92ef156 322
electronichamsters 10:79e8f92ef156 323
electronichamsters 10:79e8f92ef156 324 //while loop doesn't actually loop until reading comlete, use a wait.
electronichamsters 10:79e8f92ef156 325 while (((NRF_ADC->BUSY & ADC_BUSY_BUSY_Msk) >> ADC_BUSY_BUSY_Pos) == ADC_BUSY_BUSY_Busy) {};
electronichamsters 12:1049290dd610 326 wait_ms(1);
electronichamsters 10:79e8f92ef156 327
electronichamsters 10:79e8f92ef156 328 //save off RESULT before disabling.
electronichamsters 10:79e8f92ef156 329 //uint16_t myresult = (uint16_t)NRF_ADC->RESULT;
electronichamsters 10:79e8f92ef156 330
electronichamsters 10:79e8f92ef156 331 //disable ADC to lower bat consumption
electronichamsters 10:79e8f92ef156 332 NRF_ADC->TASKS_STOP = 1;
electronichamsters 10:79e8f92ef156 333 //NRF_ADC->ENABLE = ADC_ENABLE_ENABLE_Disabled; //disable to shutdown ADC & lower bat consumption
electronichamsters 10:79e8f92ef156 334
electronichamsters 10:79e8f92ef156 335 return (uint16_t)NRF_ADC->RESULT; // 10 bit
electronichamsters 10:79e8f92ef156 336 //return myresult;
electronichamsters 12:1049290dd610 337 } //end read_bat_volt
electronichamsters 12:1049290dd610 338
electronichamsters 12:1049290dd610 339
electronichamsters 10:79e8f92ef156 340
electronichamsters 12:1049290dd610 341 /* ****************************************
electronichamsters 12:1049290dd610 342 * Read battery voltage using bandgap reference
electronichamsters 12:1049290dd610 343 * shunt analog pin to ADC, from API here
electronichamsters 12:1049290dd610 344 * https://developer.mbed.org/users/mbed_official/code/mbed-src/file/cb4253f91ada/targets/hal/TARGET_NORDIC/TARGET_NRF51822/analogin_api.c
electronichamsters 12:1049290dd610 345 *******************************************/
electronichamsters 12:1049290dd610 346 uint16_t read_ADC_pin(void)
electronichamsters 10:79e8f92ef156 347 {
electronichamsters 10:79e8f92ef156 348
electronichamsters 10:79e8f92ef156 349 //10 bit resolution, route PSEL pin as 1/3 input sel,
electronichamsters 10:79e8f92ef156 350 //set ADC ref to VBG band gap
electronichamsters 10:79e8f92ef156 351 //set AnalogInput4 as input pin (this is P0.03)
electronichamsters 10:79e8f92ef156 352 //no external voltage reference
electronichamsters 10:79e8f92ef156 353 NRF_ADC->CONFIG = (ADC_CONFIG_RES_10bit << ADC_CONFIG_RES_Pos) |
electronichamsters 10:79e8f92ef156 354 //(ADC_CONFIG_INPSEL_SupplyOneThirdPrescaling << ADC_CONFIG_INPSEL_Pos) |
electronichamsters 10:79e8f92ef156 355 (ADC_CONFIG_INPSEL_AnalogInputOneThirdPrescaling << ADC_CONFIG_INPSEL_Pos) |
electronichamsters 10:79e8f92ef156 356 (ADC_CONFIG_REFSEL_VBG << ADC_CONFIG_REFSEL_Pos) |
electronichamsters 10:79e8f92ef156 357 //ADC_CONFIG_PSEL_Disabled << ADC_CONFIG_PSEL_Pos) |
electronichamsters 10:79e8f92ef156 358 (ADC_CONFIG_PSEL_AnalogInput4 << ADC_CONFIG_PSEL_Pos) |
electronichamsters 10:79e8f92ef156 359 (ADC_CONFIG_EXTREFSEL_None << ADC_CONFIG_EXTREFSEL_Pos);
electronichamsters 10:79e8f92ef156 360 //set pin select to AnalogInput4 = pin 7 = p0.03 = AIN4
electronichamsters 10:79e8f92ef156 361 //NRF_ADC->CONFIG &= ~ADC_CONFIG_PSEL_Msk;
electronichamsters 10:79e8f92ef156 362 //NRF_ADC->CONFIG |= ADC_CONFIG_PSEL_AnalogInput4 << ADC_CONFIG_PSEL_Pos;
electronichamsters 10:79e8f92ef156 363 NRF_ADC->ENABLE = ADC_ENABLE_ENABLE_Enabled;
electronichamsters 8:46c5e0bfab05 364 NRF_ADC->TASKS_START = 1;
electronichamsters 8:46c5e0bfab05 365
electronichamsters 8:46c5e0bfab05 366
electronichamsters 8:46c5e0bfab05 367 //while loop doesn't actually loop until reading comlete, use a wait.
electronichamsters 8:46c5e0bfab05 368 while (((NRF_ADC->BUSY & ADC_BUSY_BUSY_Msk) >> ADC_BUSY_BUSY_Pos) == ADC_BUSY_BUSY_Busy) {};
electronichamsters 12:1049290dd610 369 wait_ms(1); //needed because busy while loop doesn't run.
electronichamsters 8:46c5e0bfab05 370
electronichamsters 8:46c5e0bfab05 371 //save off RESULT before disabling.
electronichamsters 8:46c5e0bfab05 372 //uint16_t myresult = (uint16_t)NRF_ADC->RESULT;
electronichamsters 8:46c5e0bfab05 373
electronichamsters 8:46c5e0bfab05 374 //disable ADC to lower bat consumption
electronichamsters 8:46c5e0bfab05 375 //NRF_ADC->TASKS_STOP = 1;
electronichamsters 8:46c5e0bfab05 376 //NRF_ADC->ENABLE = ADC_ENABLE_ENABLE_Disabled; //disable to shutdown ADC & lower bat consumption
electronichamsters 8:46c5e0bfab05 377
electronichamsters 8:46c5e0bfab05 378 return (uint16_t)NRF_ADC->RESULT; // 10 bit
electronichamsters 8:46c5e0bfab05 379 //return myresult;
electronichamsters 12:1049290dd610 380 } //end read_ADC_pin
sunsmile2015 4:e5fa4c8838db 381
electronichamsters 10:79e8f92ef156 382
electronichamsters 12:1049290dd610 383 /* ****************************************
electronichamsters 12:1049290dd610 384 * Pattern scheme indicating "one of ours"
electronichamsters 12:1049290dd610 385 * generate first part of ADV data so that observer can recognize it as "one of ours".
electronichamsters 12:1049290dd610 386 * use specific schema to decide how we're recognizing our sensor ADV
electronichamsters 12:1049290dd610 387 *******************************************/
electronichamsters 10:79e8f92ef156 388 void hash_first_section(uint8_t * dest, const uint8_t * mac_addr, const char * bat_volt_str)
electronichamsters 10:79e8f92ef156 389 {
electronichamsters 10:79e8f92ef156 390 dest[0] = mac_addr[3];
electronichamsters 10:79e8f92ef156 391 dest[1] = mac_addr[2];
electronichamsters 10:79e8f92ef156 392 dest[2] = mac_addr[1];
electronichamsters 10:79e8f92ef156 393 dest[3] = mac_addr[0];
electronichamsters 10:79e8f92ef156 394 dest[4] = bat_volt_str[0];
electronichamsters 10:79e8f92ef156 395 dest[5] = bat_volt_str[1];
electronichamsters 10:79e8f92ef156 396 dest[6] = bat_volt_str[2];
electronichamsters 10:79e8f92ef156 397 dest[7] = bat_volt_str[3];
electronichamsters 10:79e8f92ef156 398 dest[8] = 0x10;
electronichamsters 10:79e8f92ef156 399 dest[9] = 0x11;
electronichamsters 12:1049290dd610 400 #if MyDebugEnb
electronichamsters 12:1049290dd610 401
electronichamsters 12:1049290dd610 402 device.printf("hash array: ");
electronichamsters 12:1049290dd610 403 for (int i=0; i<10; i++)
electronichamsters 12:1049290dd610 404 {
electronichamsters 12:1049290dd610 405 device.printf("%x ", dest[i]);
electronichamsters 12:1049290dd610 406 }
electronichamsters 12:1049290dd610 407 device.printf("\r\n");
electronichamsters 12:1049290dd610 408 #endif
electronichamsters 10:79e8f92ef156 409 }
electronichamsters 10:79e8f92ef156 410
electronichamsters 10:79e8f92ef156 411
electronichamsters 12:1049290dd610 412 /* ****************************************
electronichamsters 12:1049290dd610 413 *
electronichamsters 12:1049290dd610 414 * Main Loop
electronichamsters 12:1049290dd610 415 *
electronichamsters 12:1049290dd610 416 *******************************************/
sunsmile2015 2:b935358da5ba 417 int main(void)
sunsmile2015 2:b935358da5ba 418 {
electronichamsters 8:46c5e0bfab05 419
electronichamsters 12:1049290dd610 420 #if MyDebugEnb
electronichamsters 12:1049290dd610 421 device.baud(9600);
electronichamsters 12:1049290dd610 422 device.printf("started sensor node 36 ");
electronichamsters 12:1049290dd610 423 device.printf("\r\n");
electronichamsters 12:1049290dd610 424 #endif
electronichamsters 8:46c5e0bfab05 425
electronichamsters 12:1049290dd610 426 //pinHandShake = 0;
electronichamsters 12:1049290dd610 427 //pinHandShake.mode(PullNone); //Expecting gateway to set pin high for flow control
electronichamsters 12:1049290dd610 428 Tmr_From_Birthday.start(); //tracks # sec since birthday
electronichamsters 8:46c5e0bfab05 429
sunsmile2015 0:3dc6e424dba0 430
andresag 7:0a8bbb6dea16 431 BLE &ble = BLE::Instance();
andresag 7:0a8bbb6dea16 432 ble.init(bleInitComplete);
electronichamsters 8:46c5e0bfab05 433
electronichamsters 8:46c5e0bfab05 434 float bat_reading; //hold battery voltage reading (Vbg/Vcc)
electronichamsters 8:46c5e0bfab05 435
electronichamsters 8:46c5e0bfab05 436 my_analogin_init();//routes band-gap to analog input
andresag 7:0a8bbb6dea16 437
andresag 7:0a8bbb6dea16 438 /* SpinWait for initialization to complete. This is necessary because the
andresag 7:0a8bbb6dea16 439 * BLE object is used in the main loop below. */
electronichamsters 8:46c5e0bfab05 440 while (ble.hasInitialized() == false) { /* spin loop */ }
electronichamsters 8:46c5e0bfab05 441
electronichamsters 8:46c5e0bfab05 442 //every X seconds, sends period update, up to 1800 (30 minutes)
electronichamsters 12:1049290dd610 443 Tic_Periodic.attach(periodic_Callback, Periodic_Update_Seconds); //send updated I/O every x seconds
electronichamsters 12:1049290dd610 444 Tic_Birthday.attach(clock_reset_Callback, Periodicity); //clock algorithm periodicity
rgrover1 5:f4d74a8cad43 445
electronichamsters 10:79e8f92ef156 446
electronichamsters 12:1049290dd610 447 ble.getAddress(0,mac_reverse); //last byte of MAC (as shown on phone app) is at mac[0], not mac[6];
electronichamsters 12:1049290dd610 448 #if MyDebugEnb
electronichamsters 12:1049290dd610 449 device.printf("mac = ");
electronichamsters 12:1049290dd610 450 for (int i=0; i<6; i++) //prints out MAC address in reverse order; opps.
electronichamsters 12:1049290dd610 451 {
electronichamsters 12:1049290dd610 452 device.printf("%x:", mac_reverse[i]);
electronichamsters 12:1049290dd610 453 }
electronichamsters 12:1049290dd610 454 device.printf("\r\n");
electronichamsters 12:1049290dd610 455 #endif
electronichamsters 12:1049290dd610 456 while (true)
electronichamsters 12:1049290dd610 457 { //Main Loop
electronichamsters 12:1049290dd610 458
electronichamsters 12:1049290dd610 459 uint16_t seconds_Old =(uint16_t)(Tmr_From_Birthday.read_ms()/1000); // 0-1800 seconds (30 minutes)
electronichamsters 12:1049290dd610 460
electronichamsters 12:1049290dd610 461 #if MyDebugEnb
electronichamsters 12:1049290dd610 462 device.printf("current time in seconds: %d \r\n", seconds_Old);
electronichamsters 12:1049290dd610 463 #endif
electronichamsters 12:1049290dd610 464
electronichamsters 8:46c5e0bfab05 465
electronichamsters 8:46c5e0bfab05 466
electronichamsters 13:7fc157a0187d 467 //used to increase sensor periodic output more frequently after window is opened
electronichamsters 13:7fc157a0187d 468 if (Recent_Cnt <= Recent_max)
electronichamsters 13:7fc157a0187d 469 {
electronichamsters 13:7fc157a0187d 470 Recent_Cnt++;
electronichamsters 13:7fc157a0187d 471 }
electronichamsters 13:7fc157a0187d 472 if (Recent_Cnt < Recent_max)
electronichamsters 12:1049290dd610 473 {
electronichamsters 13:7fc157a0187d 474 Periodic_Update_Seconds = 5;
electronichamsters 12:1049290dd610 475 }
electronichamsters 13:7fc157a0187d 476 else
electronichamsters 12:1049290dd610 477 {
electronichamsters 13:7fc157a0187d 478 Periodic_Update_Seconds = 600;
electronichamsters 12:1049290dd610 479 }
electronichamsters 13:7fc157a0187d 480
electronichamsters 12:1049290dd610 481
electronichamsters 8:46c5e0bfab05 482
electronichamsters 8:46c5e0bfab05 483 //set both pins to pull-up, so they're not floating when we read state
electronichamsters 8:46c5e0bfab05 484 button1.mode(PullUp);
electronichamsters 8:46c5e0bfab05 485 button2.mode(PullUp);
electronichamsters 8:46c5e0bfab05 486
electronichamsters 8:46c5e0bfab05 487 //expect either button1 or button2 is grounded, b/c using SPDT reed switch
electronichamsters 8:46c5e0bfab05 488 //the "common" pin on the reed switch should be on GND
electronichamsters 8:46c5e0bfab05 489 uint8_t button1_state = button1.read();
electronichamsters 8:46c5e0bfab05 490 uint8_t button2_state = button2.read();
electronichamsters 8:46c5e0bfab05 491
electronichamsters 13:7fc157a0187d 492 //disable pull up on pins that are grounded.
electronichamsters 13:7fc157a0187d 493 if (button1_state == 0)
electronichamsters 8:46c5e0bfab05 494 {
electronichamsters 8:46c5e0bfab05 495 button1.fall(NULL); //disable interrupt
electronichamsters 8:46c5e0bfab05 496 button1.rise(NULL); //disable interrupt
electronichamsters 8:46c5e0bfab05 497 button1.mode(PullNone); //float pin to save battery
electronichamsters 13:7fc157a0187d 498 }
electronichamsters 13:7fc157a0187d 499 else
electronichamsters 8:46c5e0bfab05 500 {
electronichamsters 10:79e8f92ef156 501 button1.fall(buttonReleasedCallback); //enable interrupt
electronichamsters 10:79e8f92ef156 502 button1.rise(buttonReleasedCallback); //enable interrupt
electronichamsters 10:79e8f92ef156 503 button1.mode(PullUp); //pull up on pin to get interrupt
electronichamsters 13:7fc157a0187d 504 }
electronichamsters 13:7fc157a0187d 505
electronichamsters 13:7fc157a0187d 506 //disable pull up on pins that are grounded.
electronichamsters 13:7fc157a0187d 507 if (button2_state == 0)
electronichamsters 13:7fc157a0187d 508 {
electronichamsters 8:46c5e0bfab05 509 button2.fall(NULL); //disable interrupt
electronichamsters 8:46c5e0bfab05 510 button2.rise(NULL); //disable interrupt
electronichamsters 8:46c5e0bfab05 511 button2.mode(PullNone); //float pin to save battery
electronichamsters 13:7fc157a0187d 512 }
electronichamsters 13:7fc157a0187d 513 else
electronichamsters 8:46c5e0bfab05 514 {
electronichamsters 13:7fc157a0187d 515 button2.fall(buttonReleasedCallback); //enable interrupt
electronichamsters 13:7fc157a0187d 516 button2.rise(buttonReleasedCallback); //enable interrupt
electronichamsters 13:7fc157a0187d 517 button2.mode(PullUp); //pull up on pin to get interrupt
electronichamsters 13:7fc157a0187d 518 }
electronichamsters 8:46c5e0bfab05 519
electronichamsters 13:7fc157a0187d 520
electronichamsters 12:1049290dd610 521
electronichamsters 12:1049290dd610 522 if (Flag_Update_IO) {
electronichamsters 12:1049290dd610 523
electronichamsters 12:1049290dd610 524 //pinHandShake = 1; //enable distance sensor
electronichamsters 12:1049290dd610 525 //wait_ms(500); //let sensor run
andresag 7:0a8bbb6dea16 526 /* Do blocking calls or whatever hardware-specific action is
andresag 7:0a8bbb6dea16 527 * necessary to poll the sensor. */
electronichamsters 8:46c5e0bfab05 528
electronichamsters 12:1049290dd610 529 //call attach again on periodic update to reset ticker
electronichamsters 12:1049290dd610 530 //next periodic updates happens Perioidc_Update_Seconds after I/O events
electronichamsters 12:1049290dd610 531 Tic_Periodic.attach(periodic_Callback, Periodic_Update_Seconds);
electronichamsters 10:79e8f92ef156 532 Xmit_Cnt++; //increment transmit counter when updating I/O
electronichamsters 10:79e8f92ef156 533
electronichamsters 10:79e8f92ef156 534
electronichamsters 12:1049290dd610 535 //read and convert battery voltage
electronichamsters 12:1049290dd610 536 bat_reading = (float)read_bat_volt();
electronichamsters 8:46c5e0bfab05 537 bat_reading = (bat_reading * 3.6) / 1024.0;
electronichamsters 12:1049290dd610 538 #if MyDebugEnb
electronichamsters 8:46c5e0bfab05 539 device.printf("bat reading: %f \r\n", bat_reading);
electronichamsters 12:1049290dd610 540 #endif
electronichamsters 12:1049290dd610 541 //write battery voltage
electronichamsters 12:1049290dd610 542 uint8_t total_chars;
electronichamsters 12:1049290dd610 543 memset(&bat_volt_char[0], 0, sizeof(bat_volt_char)); //clear out buffer
electronichamsters 12:1049290dd610 544 //convert battery voltage float value to string reprsentation to 2 decimal places, and save the size of string.
electronichamsters 12:1049290dd610 545 total_chars = sprintf (bat_volt_char, "%.2f", bat_reading);
electronichamsters 8:46c5e0bfab05 546
electronichamsters 12:1049290dd610 547
electronichamsters 12:1049290dd610 548 //read and convert analog voltage. Comment out this section if note needed, saves some battery
electronichamsters 10:79e8f92ef156 549 NRF_ADC->TASKS_STOP = 1;
electronichamsters 10:79e8f92ef156 550 float analogreading;
electronichamsters 12:1049290dd610 551 analogreading = (float)read_ADC_pin();
electronichamsters 10:79e8f92ef156 552 analogreading = (analogreading * 3.6) / 1024.0;
electronichamsters 10:79e8f92ef156 553 #if MyDebugEnb
electronichamsters 10:79e8f92ef156 554 device.printf("separate analog reading: %.02f \r\n", analogreading);
electronichamsters 10:79e8f92ef156 555 #endif
electronichamsters 10:79e8f92ef156 556
electronichamsters 12:1049290dd610 557 //disable ADC to save power
electronichamsters 8:46c5e0bfab05 558 NRF_ADC->TASKS_STOP = 1;
electronichamsters 8:46c5e0bfab05 559 NRF_ADC->ENABLE = ADC_ENABLE_ENABLE_Disabled; //disable to shutdown ADC & lower bat consumption
electronichamsters 8:46c5e0bfab05 560
electronichamsters 12:1049290dd610 561 //read distance using VL6180
electronichamsters 12:1049290dd610 562 float sensor_reading = rf;
electronichamsters 12:1049290dd610 563 uint8_t total_chars_sensor;
electronichamsters 12:1049290dd610 564 memset(&sensor_char[0], 0, sizeof(sensor_char)); //clear out buffer
electronichamsters 12:1049290dd610 565 total_chars_sensor = sprintf (sensor_char, "%.2f", sensor_reading);
electronichamsters 12:1049290dd610 566
electronichamsters 12:1049290dd610 567 //pinHandShake = 0; //enable distance sensor
electronichamsters 10:79e8f92ef156 568
electronichamsters 12:1049290dd610 569 #if MyDebugEnb
electronichamsters 12:1049290dd610 570 device.printf("char buff: %c%c%c%c \r\n", bat_volt_char[0], bat_volt_char[1], bat_volt_char[2], bat_volt_char[3]);
electronichamsters 12:1049290dd610 571 device.printf("num chars: %d \r\n", total_chars);
electronichamsters 12:1049290dd610 572 #endif
electronichamsters 8:46c5e0bfab05 573
electronichamsters 8:46c5e0bfab05 574
electronichamsters 12:1049290dd610 575 //Generate "First Section" for ADV_Data so gateway will recognize our advertisement pattern
electronichamsters 12:1049290dd610 576 hash_first_section(Adv_First_Section, mac_reverse, bat_volt_char);
electronichamsters 8:46c5e0bfab05 577
electronichamsters 10:79e8f92ef156 578
electronichamsters 12:1049290dd610 579 /* ****************************************
electronichamsters 12:1049290dd610 580 * start writing out ADVData array
electronichamsters 12:1049290dd610 581 * todo: this is easy to write but hard to read. Maybe make it easy to read and hard to write?
electronichamsters 12:1049290dd610 582 ******************************************/
electronichamsters 10:79e8f92ef156 583 memset(&AdvData[0], 0, sizeof(AdvData));
electronichamsters 10:79e8f92ef156 584 uint8_t JSON_loc=0; //AdvData[0]
electronichamsters 10:79e8f92ef156 585
electronichamsters 12:1049290dd610 586 AdvData[0] = Adv_First_Section[0]; //"our device" flag, MAC[3]
electronichamsters 12:1049290dd610 587 JSON_loc++; //JSON_loc == 1
electronichamsters 12:1049290dd610 588 AdvData[1] = Adv_First_Section[1]; //"out device" flag, MAC[2]...
electronichamsters 12:1049290dd610 589 JSON_loc++; //JSON_loc == 2
electronichamsters 12:1049290dd610 590 AdvData[2] = Adv_First_Section[2];
electronichamsters 12:1049290dd610 591 JSON_loc++; //JSON_loc == 3
electronichamsters 12:1049290dd610 592 AdvData[3] = Adv_First_Section[3];
electronichamsters 12:1049290dd610 593 JSON_loc++; //JSON_loc == 4
electronichamsters 12:1049290dd610 594 AdvData[4] = Adv_First_Section[4];
electronichamsters 12:1049290dd610 595 JSON_loc++; //JSON_loc == 5
electronichamsters 12:1049290dd610 596 AdvData[5] = Adv_First_Section[5];
electronichamsters 12:1049290dd610 597 JSON_loc++; //JSON_loc == 6
electronichamsters 12:1049290dd610 598 AdvData[6] = Adv_First_Section[6];
electronichamsters 10:79e8f92ef156 599 JSON_loc++;
electronichamsters 12:1049290dd610 600 AdvData[7] = Adv_First_Section[7];
electronichamsters 10:79e8f92ef156 601 JSON_loc++;
electronichamsters 12:1049290dd610 602 AdvData[8] = Adv_First_Section[8];
electronichamsters 10:79e8f92ef156 603 JSON_loc++;
electronichamsters 12:1049290dd610 604 AdvData[9] = Adv_First_Section[9];
electronichamsters 8:46c5e0bfab05 605 JSON_loc++;
electronichamsters 10:79e8f92ef156 606
electronichamsters 12:1049290dd610 607 #if MyDebugEnb
electronichamsters 12:1049290dd610 608 device.printf("ADV first 10 array: ");
electronichamsters 12:1049290dd610 609 for (int i=0; i<10; i++)
electronichamsters 12:1049290dd610 610 {
electronichamsters 12:1049290dd610 611 device.printf("%x ", AdvData[i]);
electronichamsters 12:1049290dd610 612 }
electronichamsters 12:1049290dd610 613 device.printf("\r\n");
electronichamsters 12:1049290dd610 614 #endif
electronichamsters 10:79e8f92ef156 615
electronichamsters 10:79e8f92ef156 616
electronichamsters 10:79e8f92ef156 617 JSON_loc = 10;
electronichamsters 12:1049290dd610 618 //Start of encrypted user data
electronichamsters 12:1049290dd610 619
electronichamsters 12:1049290dd610 620 //[10] and [11] hold 2 bytes for how many seconds since birthday, little endian
electronichamsters 12:1049290dd610 621 AdvData[10] = seconds_Old & 0xFF;
electronichamsters 8:46c5e0bfab05 622 JSON_loc++;
electronichamsters 12:1049290dd610 623 AdvData[11] = (seconds_Old >> 8) & 0xFF;
electronichamsters 10:79e8f92ef156 624 JSON_loc++;
electronichamsters 12:1049290dd610 625
electronichamsters 10:79e8f92ef156 626 AdvData[12] = Xmit_Cnt;
electronichamsters 8:46c5e0bfab05 627 JSON_loc++;
electronichamsters 12:1049290dd610 628
electronichamsters 10:79e8f92ef156 629 //start of jason data
electronichamsters 12:1049290dd610 630 //"mag":
electronichamsters 12:1049290dd610 631 JSON_loc = 13; //hardcode should be 13
electronichamsters 12:1049290dd610 632 AdvData[JSON_loc] = 0x22; //ADV_Data[13] = "
electronichamsters 10:79e8f92ef156 633 JSON_loc++; //14
electronichamsters 8:46c5e0bfab05 634
electronichamsters 13:7fc157a0187d 635 AdvData[JSON_loc] = 0x44; //ADV_Data[14] = D
electronichamsters 10:79e8f92ef156 636 JSON_loc++; //15
electronichamsters 10:79e8f92ef156 637
electronichamsters 13:7fc157a0187d 638 AdvData[JSON_loc] = 0x49; //ADV_Data[15] = I
electronichamsters 10:79e8f92ef156 639 JSON_loc++; //16
electronichamsters 10:79e8f92ef156 640
electronichamsters 13:7fc157a0187d 641 AdvData[JSON_loc] = 0x53; //ADV_Data[16] = S
electronichamsters 10:79e8f92ef156 642 JSON_loc++; //17
electronichamsters 8:46c5e0bfab05 643
electronichamsters 12:1049290dd610 644 //for periodic calls, we want to add an extra mqtt level "p", using "/p"
electronichamsters 12:1049290dd610 645 //to delineate between MQTT publishes from real world I/O interrupts vs timer interrupts
electronichamsters 12:1049290dd610 646 if (Flag_Periodic_Call)
electronichamsters 8:46c5e0bfab05 647 {
electronichamsters 12:1049290dd610 648 AdvData[JSON_loc] = 0x2f; // ADV_Data[17] = /
electronichamsters 12:1049290dd610 649 JSON_loc++; //18
electronichamsters 12:1049290dd610 650 AdvData[JSON_loc] = 0x70; // ADV_Data[18] =p
electronichamsters 12:1049290dd610 651 JSON_loc++; //19
electronichamsters 12:1049290dd610 652 }
electronichamsters 8:46c5e0bfab05 653
electronichamsters 12:1049290dd610 654 AdvData[JSON_loc] = 0x22; //ADV_Data[17 or 19] = "
electronichamsters 10:79e8f92ef156 655 JSON_loc++; //20
electronichamsters 8:46c5e0bfab05 656
electronichamsters 12:1049290dd610 657 AdvData[JSON_loc] = 0x3a; //ADV_Data[18 or 20] = :
electronichamsters 12:1049290dd610 658 JSON_loc++; //21
electronichamsters 8:46c5e0bfab05 659
electronichamsters 12:1049290dd610 660 //convert magnet variable to string, for magnet sensor, this is easy
electronichamsters 12:1049290dd610 661 //since we only have 1 or 0, but this also works for analog values
electronichamsters 12:1049290dd610 662 /*
electronichamsters 8:46c5e0bfab05 663 memset(&buffer[0], 0, sizeof(buffer)); //clear out buffer
electronichamsters 10:79e8f92ef156 664 total_chars = sprintf (buffer, "%d", magnet_near); //returns total number of characters, which is 1 character.
electronichamsters 8:46c5e0bfab05 665 for (int i=0; i < total_chars; i++)
electronichamsters 8:46c5e0bfab05 666 {
electronichamsters 8:46c5e0bfab05 667 AdvData[JSON_loc] = buffer[i];
electronichamsters 10:79e8f92ef156 668 JSON_loc++; //23
electronichamsters 8:46c5e0bfab05 669 } //JSON_loc left at location of next character
electronichamsters 12:1049290dd610 670 */
electronichamsters 8:46c5e0bfab05 671
electronichamsters 12:1049290dd610 672 //memset(&buffer[0], 0, sizeof(buffer)); //clear out buffer
electronichamsters 12:1049290dd610 673 for (int i=0; i < total_chars_sensor; i++)
electronichamsters 12:1049290dd610 674 {
electronichamsters 12:1049290dd610 675 AdvData[JSON_loc] = sensor_char[i];
electronichamsters 12:1049290dd610 676 JSON_loc++;
electronichamsters 12:1049290dd610 677 } //JSON_loc left at location of next character
electronichamsters 8:46c5e0bfab05 678
electronichamsters 12:1049290dd610 679
electronichamsters 12:1049290dd610 680 //AdvData[JSON_loc] = 0x0; //since AdvData was cleared to start with, we don't need to null term
electronichamsters 8:46c5e0bfab05 681
rgrover1 5:f4d74a8cad43 682 ApplicationData_t appData;
rgrover1 5:f4d74a8cad43 683 setupApplicationData(appData);
electronichamsters 8:46c5e0bfab05 684
electronichamsters 12:1049290dd610 685 /*********************
electronichamsters 12:1049290dd610 686 * start encrypting last 16 bytes of ADV_Data
electronichamsters 12:1049290dd610 687 *********************/
electronichamsters 8:46c5e0bfab05 688 for (int i=0; i<16; i++)
electronichamsters 8:46c5e0bfab05 689 {
electronichamsters 10:79e8f92ef156 690 src_buf[i] = AdvData[i+10]; //start of encrypted section is at AdvData[10]
electronichamsters 8:46c5e0bfab05 691 }
electronichamsters 8:46c5e0bfab05 692 nrf_ecb_init();
electronichamsters 8:46c5e0bfab05 693 nrf_ecb_set_key(key_buf);
electronichamsters 8:46c5e0bfab05 694 bool successful_ecb = nrf_ecb_crypt(des_buf, src_buf);
electronichamsters 12:1049290dd610 695 #if MyDebugEnb
electronichamsters 12:1049290dd610 696 device.printf("success ecb = %d \r\n", successful_ecb);
electronichamsters 12:1049290dd610 697 device.printf("src_buf: %x %x %x %x %x %x %x %x %x %x %x %x %x %x %x %x \r\n", src_buf[0], src_buf[1], src_buf[2], src_buf[3], src_buf[4], src_buf[5], src_buf[6], src_buf[7], src_buf[8], src_buf[9], src_buf[10], src_buf[11], src_buf[12], src_buf[13], src_buf[14], src_buf[15]);
electronichamsters 12:1049290dd610 698 device.printf("des_buf: %x %x %x %x %x %x %x %x %x %x %x %x %x %x %x %x \r\n", des_buf[0], des_buf[1], des_buf[2], des_buf[3], des_buf[4], des_buf[5], des_buf[6], des_buf[7], des_buf[8], des_buf[9], des_buf[10], des_buf[11], des_buf[12], des_buf[13], des_buf[14], des_buf[15]);
electronichamsters 12:1049290dd610 699 #endif
electronichamsters 12:1049290dd610 700 for (int i=0; i<16; i++) //replace last 16 bytes with encrypted 16 bytes
electronichamsters 8:46c5e0bfab05 701 {
electronichamsters 10:79e8f92ef156 702 AdvData[i+10] = des_buf[i];
electronichamsters 8:46c5e0bfab05 703 }
electronichamsters 8:46c5e0bfab05 704
electronichamsters 12:1049290dd610 705 //set payload for advertisement to our custom manufactured data. First 5 bytes is BLE standard, last 26 bytes is our array
electronichamsters 8:46c5e0bfab05 706 //ble.gap().updateAdvertisingPayload(GapAdvertisingData::MANUFACTURER_SPECIFIC_DATA, (uint8_t *) &appData, sizeof(ApplicationData_t));
electronichamsters 8:46c5e0bfab05 707 ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::MANUFACTURER_SPECIFIC_DATA, AdvData, sizeof(AdvData));
electronichamsters 8:46c5e0bfab05 708
electronichamsters 12:1049290dd610 709 Flag_Update_IO = false;
electronichamsters 12:1049290dd610 710 Flag_Periodic_Call = false;
electronichamsters 8:46c5e0bfab05 711
electronichamsters 8:46c5e0bfab05 712 ble.gap().startAdvertising();
electronichamsters 12:1049290dd610 713 Tic_Stop_Adv.attach(stop_adv_Callback, 4); /* trigger turn off advertisement after X seconds */
electronichamsters 8:46c5e0bfab05 714
electronichamsters 12:1049290dd610 715 }//end Flag_Update_IO
electronichamsters 8:46c5e0bfab05 716
electronichamsters 8:46c5e0bfab05 717
electronichamsters 12:1049290dd610 718 if (Flag_Detach_Adv_Tic == true) //ticker callback flag to stop advertising
electronichamsters 8:46c5e0bfab05 719 {
electronichamsters 8:46c5e0bfab05 720 ble.gap().stopAdvertising(); //may be safer to execute BLE operations in main
electronichamsters 12:1049290dd610 721 Tic_Stop_Adv.detach();
electronichamsters 12:1049290dd610 722 Flag_Detach_Adv_Tic = false;
electronichamsters 8:46c5e0bfab05 723 }
electronichamsters 12:1049290dd610 724
electronichamsters 8:46c5e0bfab05 725
electronichamsters 12:1049290dd610 726 ble.waitForEvent(); //sleeps until interrupt form ticker or I/O
electronichamsters 8:46c5e0bfab05 727 }//end forever while
electronichamsters 8:46c5e0bfab05 728 }//end main