Sarah Marsh / Mbed OS mbed-os-example-ble-voice

BLE UART example.

Fork of mbed-os-example-ble-LED by mbed-os-examples

source/main.cpp@23:46aad4b5185f, 2017-04-03 (annotated)

Committer:
sarahmarshy
Date:
Mon Apr 03 14:47:34 2017 +0000
Revision:
23:46aad4b5185f
Parent:
11:7404978b24e7
Child:
24:0770ad9edb2d
Parse UART RX buffer for commands.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 2:864ddfb70a9c 1 /* mbed Microcontroller Library
mbed_official 2:864ddfb70a9c 2 * Copyright (c) 2006-2013 ARM Limited
mbed_official 2:864ddfb70a9c 3 *
mbed_official 2:864ddfb70a9c 4 * Licensed under the Apache License, Version 2.0 (the "License");
mbed_official 2:864ddfb70a9c 5 * you may not use this file except in compliance with the License.
mbed_official 2:864ddfb70a9c 6 * You may obtain a copy of the License at
mbed_official 2:864ddfb70a9c 7 *
mbed_official 2:864ddfb70a9c 8 * http://www.apache.org/licenses/LICENSE-2.0
mbed_official 2:864ddfb70a9c 9 *
mbed_official 2:864ddfb70a9c 10 * Unless required by applicable law or agreed to in writing, software
mbed_official 2:864ddfb70a9c 11 * distributed under the License is distributed on an "AS IS" BASIS,
mbed_official 2:864ddfb70a9c 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
mbed_official 2:864ddfb70a9c 13 * See the License for the specific language governing permissions and
mbed_official 2:864ddfb70a9c 14 * limitations under the License.
mbed_official 2:864ddfb70a9c 15 */
mbed_official 2:864ddfb70a9c 16
mbed_official 11:7404978b24e7 17 #include <events/mbed_events.h>
mbed_official 2:864ddfb70a9c 18 #include <mbed.h>
mbed_official 2:864ddfb70a9c 19 #include "ble/BLE.h"
sarahmarshy 23:46aad4b5185f 20 #include "UARTService.h"
mbed_official 2:864ddfb70a9c 21
mbed_official 2:864ddfb70a9c 22 DigitalOut alivenessLED(LED1, 0);
mbed_official 2:864ddfb70a9c 23 DigitalOut actuatedLED(LED2, 0);
mbed_official 2:864ddfb70a9c 24
sarahmarshy 23:46aad4b5185f 25 DigitalOut light(D2);
sarahmarshy 23:46aad4b5185f 26
sarahmarshy 23:46aad4b5185f 27 const static char DEVICE_NAME[] = "mbedVoiceUART";
sarahmarshy 23:46aad4b5185f 28 static const uint16_t uuid16_list[] = {UARTServiceShortUUID};
mbed_official 2:864ddfb70a9c 29
mbed_official 2:864ddfb70a9c 30 static EventQueue eventQueue(
mbed_official 2:864ddfb70a9c 31 /* event count */ 10 * /* event size */ 32
mbed_official 2:864ddfb70a9c 32 );
mbed_official 2:864ddfb70a9c 33
sarahmarshy 23:46aad4b5185f 34 UARTService *UARTServicePtr;
mbed_official 2:864ddfb70a9c 35
mbed_official 2:864ddfb70a9c 36 void disconnectionCallback(const Gap::DisconnectionCallbackParams_t *params)
mbed_official 2:864ddfb70a9c 37 {
mbed_official 2:864ddfb70a9c 38 (void) params;
mbed_official 2:864ddfb70a9c 39 BLE::Instance().gap().startAdvertising();
mbed_official 2:864ddfb70a9c 40 }
mbed_official 2:864ddfb70a9c 41
mbed_official 2:864ddfb70a9c 42 void blinkCallback(void)
mbed_official 2:864ddfb70a9c 43 {
mbed_official 2:864ddfb70a9c 44 alivenessLED = !alivenessLED; /* Do blinky on LED1 to indicate system aliveness. */
mbed_official 2:864ddfb70a9c 45 }
mbed_official 2:864ddfb70a9c 46
sarahmarshy 23:46aad4b5185f 47 void check_command(char* cmd){
sarahmarshy 23:46aad4b5185f 48 if(strstr(cmd, "panic")){
sarahmarshy 23:46aad4b5185f 49 light = 1;
sarahmarshy 23:46aad4b5185f 50 }
sarahmarshy 23:46aad4b5185f 51 else if(strstr(cmd, "chill")){
sarahmarshy 23:46aad4b5185f 52 light = 0;
sarahmarshy 23:46aad4b5185f 53 }
sarahmarshy 23:46aad4b5185f 54
sarahmarshy 23:46aad4b5185f 55 }
sarahmarshy 23:46aad4b5185f 56
mbed_official 2:864ddfb70a9c 57 /**
mbed_official 2:864ddfb70a9c 58 * This callback allows the LEDService to receive updates to the ledState Characteristic.
mbed_official 2:864ddfb70a9c 59 *
mbed_official 2:864ddfb70a9c 60 * @param[in] params
mbed_official 2:864ddfb70a9c 61 * Information about the characterisitc being updated.
mbed_official 2:864ddfb70a9c 62 */
mbed_official 2:864ddfb70a9c 63 void onDataWrittenCallback(const GattWriteCallbackParams *params) {
sarahmarshy 23:46aad4b5185f 64 char rcv[UARTServicePtr->BLE_UART_SERVICE_MAX_DATA_LEN];
sarahmarshy 23:46aad4b5185f 65 int c = UARTServicePtr->_getc();
sarahmarshy 23:46aad4b5185f 66 int i = 0;
sarahmarshy 23:46aad4b5185f 67 while (c != EOF){
sarahmarshy 23:46aad4b5185f 68 rcv[i++] = (char)c;
sarahmarshy 23:46aad4b5185f 69 c = UARTServicePtr->_getc();
mbed_official 2:864ddfb70a9c 70 }
sarahmarshy 23:46aad4b5185f 71 printf("%s\r\n", rcv);
sarahmarshy 23:46aad4b5185f 72 check_command(rcv);
mbed_official 2:864ddfb70a9c 73 }
mbed_official 2:864ddfb70a9c 74
mbed_official 2:864ddfb70a9c 75 /**
mbed_official 2:864ddfb70a9c 76 * This function is called when the ble initialization process has failled
mbed_official 2:864ddfb70a9c 77 */
mbed_official 2:864ddfb70a9c 78 void onBleInitError(BLE &ble, ble_error_t error)
mbed_official 2:864ddfb70a9c 79 {
mbed_official 2:864ddfb70a9c 80 /* Initialization error handling should go here */
mbed_official 2:864ddfb70a9c 81 }
mbed_official 2:864ddfb70a9c 82
mbed_official 2:864ddfb70a9c 83 /**
mbed_official 2:864ddfb70a9c 84 * Callback triggered when the ble initialization process has finished
mbed_official 2:864ddfb70a9c 85 */
mbed_official 2:864ddfb70a9c 86 void bleInitComplete(BLE::InitializationCompleteCallbackContext *params)
mbed_official 2:864ddfb70a9c 87 {
mbed_official 2:864ddfb70a9c 88 BLE& ble = params->ble;
mbed_official 2:864ddfb70a9c 89 ble_error_t error = params->error;
mbed_official 2:864ddfb70a9c 90
mbed_official 2:864ddfb70a9c 91 if (error != BLE_ERROR_NONE) {
mbed_official 2:864ddfb70a9c 92 /* In case of error, forward the error handling to onBleInitError */
mbed_official 2:864ddfb70a9c 93 onBleInitError(ble, error);
mbed_official 2:864ddfb70a9c 94 return;
mbed_official 2:864ddfb70a9c 95 }
mbed_official 2:864ddfb70a9c 96
mbed_official 2:864ddfb70a9c 97 /* Ensure that it is the default instance of BLE */
mbed_official 2:864ddfb70a9c 98 if(ble.getInstanceID() != BLE::DEFAULT_INSTANCE) {
mbed_official 2:864ddfb70a9c 99 return;
mbed_official 2:864ddfb70a9c 100 }
mbed_official 2:864ddfb70a9c 101
mbed_official 2:864ddfb70a9c 102 ble.gap().onDisconnection(disconnectionCallback);
mbed_official 2:864ddfb70a9c 103 ble.gattServer().onDataWritten(onDataWrittenCallback);
mbed_official 2:864ddfb70a9c 104
sarahmarshy 23:46aad4b5185f 105 UARTServicePtr = new UARTService(ble);
mbed_official 2:864ddfb70a9c 106
mbed_official 2:864ddfb70a9c 107 /* setup advertising */
mbed_official 2:864ddfb70a9c 108 ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::BREDR_NOT_SUPPORTED | GapAdvertisingData::LE_GENERAL_DISCOVERABLE);
mbed_official 2:864ddfb70a9c 109 ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LIST_16BIT_SERVICE_IDS, (uint8_t *)uuid16_list, sizeof(uuid16_list));
mbed_official 2:864ddfb70a9c 110 ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LOCAL_NAME, (uint8_t *)DEVICE_NAME, sizeof(DEVICE_NAME));
mbed_official 2:864ddfb70a9c 111 ble.gap().setAdvertisingType(GapAdvertisingParams::ADV_CONNECTABLE_UNDIRECTED);
sarahmarshy 23:46aad4b5185f 112 ble.gap().setAdvertisingInterval(160); /* 1000ms. */
mbed_official 2:864ddfb70a9c 113 ble.gap().startAdvertising();
mbed_official 2:864ddfb70a9c 114 }
mbed_official 2:864ddfb70a9c 115
mbed_official 2:864ddfb70a9c 116 void scheduleBleEventsProcessing(BLE::OnEventsToProcessCallbackContext* context) {
mbed_official 2:864ddfb70a9c 117 BLE &ble = BLE::Instance();
mbed_official 11:7404978b24e7 118 eventQueue.call(Callback<void()>(&ble, &BLE::processEvents));
mbed_official 2:864ddfb70a9c 119 }
mbed_official 2:864ddfb70a9c 120
mbed_official 2:864ddfb70a9c 121 int main()
mbed_official 2:864ddfb70a9c 122 {
sarahmarshy 23:46aad4b5185f 123 light = 0;
mbed_official 11:7404978b24e7 124 eventQueue.call_every(500, blinkCallback);
mbed_official 2:864ddfb70a9c 125
mbed_official 2:864ddfb70a9c 126 BLE &ble = BLE::Instance();
mbed_official 2:864ddfb70a9c 127 ble.onEventsToProcess(scheduleBleEventsProcessing);
mbed_official 2:864ddfb70a9c 128 ble.init(bleInitComplete);
mbed_official 2:864ddfb70a9c 129
mbed_official 11:7404978b24e7 130 eventQueue.dispatch_forever();
mbed_official 2:864ddfb70a9c 131
mbed_official 2:864ddfb70a9c 132 return 0;
mbed_official 2:864ddfb70a9c 133 }