ROHMUSDC
First Revision of sample code for interfacing ROHM Multi-Sensor Shield board with Nordic Semiconductor's nRF51-DK Development Kit Host BTLE Board
Dependencies: BLE_API mbed nRF51822 Nordic_UART_TEMPLATE_ROHM
Dependents: Nordic_UART_TEMPLATE_ROHM
Fork of
UART_TEMPLATE
by 
daniel veilleux
Code Example for ROHM Multi-Sensor Shield on the Nordic Semiconductor nRF51-DK
This code was written to be used with the Nordic Semiconductor nRF51-DK.
This is the basic example code for interfacing ROHM's Multi-sensor Shield Board onto this board.
Additional information about the ROHM MultiSensor Shield Board can be found at the following link: https://github.com/ROHMUSDC/ROHM_SensorPlatform_Multi-Sensor-Shield
For code example for the ROHM SENSORSHLD1-EVK-101, please see the following link: https://developer.mbed.org/teams/ROHMUSDC/code/Nordic_UART_TEMPLATE_ROHM_SHLD1Update/
Operation
Ultimately, this code will initialize all the sensors on the Multi-sensor shield board and then poll the sensors. The sensor data will then be returned to the BTLE COM port link and will be view-able on any BTLE enabled phone that can connect to the Nordic UART Application.
Supported ROHM Sensor Devices
- BDE0600G Temperature Sensor
- BM1383GLV Pressure Sensor
- BU52014 Hall Sensor
- ML8511 UV Sensor
- RPR-0521 ALS/PROX Sensor
- BH1745NUC Color Sensor
- KMX62 Accel/Mag Sensor
- KX122 Accel Sensor
- KXG03 Gyro/Accel Sensor
Sensor Applicable Code Sections
- Added a Section in "Main" to act as initialization
- Added to the "Periodic Callback" to read sensor data and return to Phone/Host
Questions/Feedback
Please feel free to let us know any questions/feedback/comments/concerns on the shield implementation by contacting the following e-mail:
Diff: main.cpp
- Revision:
- 2:c7b9d588c80f
- Parent:
- 1:2c0ab5cd1a7f
- Child:
- 3:c3ee9d663fb8
--- a/main.cpp Sun Jul 19 23:14:07 2015 +0000
+++ b/main.cpp Wed Jul 22 01:05:56 2015 +0000
@@ -13,19 +13,38 @@
* See the License for the specific language governing permissions and
* limitations under the License.
*/
+
+ /*
+ * Added Functions for ROHM's Multi-Sensor Shield Board
+ * Supports the following Sensor Devices
+ * > BDE0600G Temperature Sensor
+ * > BM1383GLV Pressure Sensor
+ * > BU52014 Hall Sensor
+ * > ML8511 UV Sensor
+ * > RPR-0521 ALS/PROX Sensor
+ * > BH1745NUC Color Sensor
+ * > KMX62 Accel/Mag Sensor
+ * > KX122 Accel Sensor
+ * > KXG03 Gyro (Currently Unavailable as IC hasn't docked yet)
+ *
+ * New Code:
+ * Added a Section in "Main" to act as initialization
+ * Added to the "Periodic Callback" to read sensor data and return to Phone/Host
+ */
+
-#define AnalogALS //BH1620 //Change 0: Remove this completely
+//#define AnalogALS //BH1620 //Change 0: Remove this completely
#define AnalogTemp //BDE0600
#define AnalogUV //ML8511
#define HallSensor //BU52011 //Change 1: Change to use GPIO for BU52014
-#define DigitalALS //BH1721 //Change 2: Remove This and add in the RPR-0521
+#define RPR0521 //RPR0521 //Change 2: Remove This and add in the RPR-0521
//Change 3: Add Code For BH1745, KX022, BM1383GLV, KMX62
-
#include "mbed.h"
#include "BLEDevice.h"
#include "UARTService.h"
#include "nrf_temp.h"
+#include "I2C.h"
#define MAX_REPLY_LEN (UARTService::BLE_UART_SERVICE_MAX_DATA_LEN) //Actually equal to 20
#define SENSOR_READ_INTERVAL_S (2.0F)
@@ -50,29 +69,45 @@
I2C i2c(p30,p7);
//Sensor Variables
-AnalogIn BH1620_ALS(p1);
+/*
+AnalogIn BH1620_ALS(p1); //No Analog ALS on the shield
uint16_t BH1620_ALS_value;
float BH1620_output;
+*/
-AnalogIn BDE0600_Temp(p2);
+AnalogIn BDE0600_Temp(p3); //p2 on the prior evk, p3 on the shield
uint16_t BDE0600_Temp_value;
float BDE0600_output;
-AnalogIn ML8511_UV(p3);
+AnalogIn ML8511_UV(p5); //p3 on prior EVK, p5 on the shield
uint16_t ML8511_UV_value;
float ML8511_output;
-DigitalIn Hall_GPIO0(p28);
-DigitalIn Hall_GPIO1(p29);
+DigitalIn Hall_GPIO0(p14); //
+DigitalIn Hall_GPIO1(p15); //
int Hall_Return1;
int Hall_Return0;
-int ALS_addr_w = 0x46; //7bit addr = 0x23, with write bit 0
-int ALS_addr_r = 0x47; //7bit addr = 0x23, with read bit 1
-char ALS_PwrOn_cmd = 0x01;
-char ALS_ContAuto_cmd = 0x10;
-char ALS_ReturnData_raw[2];
-float ALS_Return = 0;
+bool RepStart = true;
+bool NoRepStart = false;
+
+#ifdef RPR0521
+int RPR0521_addr_w = 0x70; //7bit addr = 0x38, with write bit 0
+int RPR0521_addr_r = 0x71; //7bit addr = 0x38, with read bit 1
+
+char RPR0521_ModeControl[2] = {0x41, 0xE6};
+char RPR0521_ALSPSControl[2] = {0x42, 0x03};
+char RPR0521_Persist[2] = {0x43, 0x20};
+char RPR0521_Addr_ReadData = 0x44;
+char RPR0521_Content_ReadData[6];
+
+int RPR0521_PS_RAWOUT = 0;
+float RPR0521_PS_OUT = 0;
+int RPR0521_ALS_D0_RAWOUT = 0;
+int RPR0521_ALS_D1_RAWOUT = 0;
+float RPR0521_ALS_DataRatio = 0;
+float RPR0521_ALS_OUT = 0;
+#endif
/**
* This callback is used whenever a disconnection occurs.
@@ -117,10 +152,10 @@
len = snprintf((char*) buf, MAX_REPLY_LEN, "OK... LED OFF");
break;
case 'a':
- len = snprintf((char*) buf, MAX_REPLY_LEN, "ALSRaw = %d", BH1620_ALS_value);
+ //len = snprintf((char*) buf, MAX_REPLY_LEN, "ALSRaw = %d", BH1620_ALS_value);
break;
case 'b':
- len = snprintf((char*) buf, MAX_REPLY_LEN, "ALS = %.2f lx", BH1620_output);
+ //len = snprintf((char*) buf, MAX_REPLY_LEN, "ALS = %.2f lx", BH1620_output);
break;
default:
len = snprintf((char*) buf, MAX_REPLY_LEN, "ERROR");
@@ -157,8 +192,9 @@
uint8_t buf[MAX_REPLY_LEN];
uint32_t len = 0;
-
-#ifdef AnalogALS
+
+/*
+#ifdef AnalogALS
if (m_ble.getGapState().connected) {
BH1620_ALS_value = BH1620_ALS.read_u16();
BH1620_output = (float)BH1620_ALS_value * 1.543;
@@ -167,6 +203,7 @@
m_ble.updateCharacteristicValue(m_uart_service_ptr->getRXCharacteristicHandle(), buf, len);
}
#endif
+*/
#ifdef AnalogTemp
if (m_ble.getGapState().connected) {
@@ -212,14 +249,42 @@
}
#endif
-
-
+#ifdef RPR0521
+ if (m_ble.getGapState().connected) {
+
+ i2c.write(RPR0521_addr_w, &RPR0521_Addr_ReadData, 1, RepStart);
+ i2c.read(RPR0521_addr_r, &RPR0521_Content_ReadData[0], 6, NoRepStart);
+
+ RPR0521_PS_RAWOUT = (RPR0521_Content_ReadData[1]<<8) | (RPR0521_Content_ReadData[0]);
+ RPR0521_ALS_D0_RAWOUT = (RPR0521_Content_ReadData[3]<<8) | (RPR0521_Content_ReadData[2]);
+ RPR0521_ALS_D1_RAWOUT = (RPR0521_Content_ReadData[5]<<8) | (RPR0521_Content_ReadData[4]);
+ RPR0521_ALS_DataRatio = (float)RPR0521_ALS_D1_RAWOUT / (float)RPR0521_ALS_D0_RAWOUT;
+
+ if(RPR0521_ALS_DataRatio < 0.595){
+ RPR0521_ALS_OUT = (1.682*(float)RPR0521_ALS_D0_RAWOUT - 1.877*(float)RPR0521_ALS_D1_RAWOUT);
+ }
+ else if(RPR0521_ALS_DataRatio < 1.015){
+ RPR0521_ALS_OUT = (0.644*(float)RPR0521_ALS_D0_RAWOUT - 0.132*(float)RPR0521_ALS_D1_RAWOUT);
+ }
+ else if(RPR0521_ALS_DataRatio < 1.352){
+ RPR0521_ALS_OUT = (0.756*(float)RPR0521_ALS_D0_RAWOUT - 0.243*(float)RPR0521_ALS_D1_RAWOUT);
+ }
+ else if(RPR0521_ALS_DataRatio < 3.053){
+ RPR0521_ALS_OUT = (0.766*(float)RPR0521_ALS_D0_RAWOUT - 0.25*(float)RPR0521_ALS_D1_RAWOUT);
+ }
+ else{
+ RPR0521_ALS_OUT = 0;
+ }
+
+ len = snprintf((char*) buf, MAX_REPLY_LEN, "DALS= %0.2f lx", RPR0521_ALS_OUT);
+ m_ble.updateCharacteristicValue(m_uart_service_ptr->getRXCharacteristicHandle(), buf, len);
+ }
+#endif
if (m_ble.getGapState().connected) {
len = snprintf((char*) buf, MAX_REPLY_LEN, " "); //Print and Extra Line to show new data
m_ble.updateCharacteristicValue(m_uart_service_ptr->getRXCharacteristicHandle(), buf, len);
}
-
}
@@ -236,12 +301,15 @@
m_cmd_led = !m_cmd_led;
+
if (m_ble.getGapState().connected) {
+ /*
BH1620_ALS_value = BH1620_ALS.read_u16();
BH1620_output = (float)BH1620_ALS_value * 1.543;
len = snprintf((char*) buf, MAX_REPLY_LEN, "ALS = %.2f lx", BH1620_output);
m_ble.updateCharacteristicValue(m_uart_service_ptr->getRXCharacteristicHandle(), buf, len);
+ */
}
}
@@ -252,21 +320,26 @@
m_serial_port.baud(UART_BAUD_RATE);
- DEBUG("Initialising\n\r");
+ DEBUG("Initialising...\n\r");
m_cmd_led = 0;
m_error_led = 0;
- BH1620_ALS_value = 0;
+ //BH1620_ALS_value = 0;
ticker.attach(periodicCallback, SENSOR_READ_INTERVAL_S);
sw4Press.fall(&PBTrigger);
-#ifdef DigitalALS
- i2c.write(ALS_addr_w, &ALS_PwrOn_cmd, 1);
- i2c.write(ALS_addr_w, &ALS_ContAuto_cmd, 1);
+#ifdef RPR0521
+ // 1. Mode Control (0x41), write (0xC6): ALS EN, PS EN, 100ms measurement for ALS and PS, PS_PULSE=1
+ // 2. ALS_PS_CONTROL (0x42), write (0x03): LED Current = 200mA
+ // 3. PERSIST (0x43), write (0x20): PS Gain x4
+ i2c.write(RPR0521_addr_w, &RPR0521_ModeControl[0], 2, false);
+ i2c.write(RPR0521_addr_w, &RPR0521_ALSPSControl[0], 2, false);
+ i2c.write(RPR0521_addr_w, &RPR0521_Persist[0], 2, false);
#endif
+//Start BTLE Initialization Section
m_ble.init();
m_ble.onDisconnection(disconnectionCallback);
m_ble.onDataWritten(dataWrittenCallback);