ROHMUSDC
This is sample code for interfacing ROHM's SENSORSHLD1-EVK-101 with Nordic Semiconductor's nRF51-DK Development Kit Host BTLE Board
Dependencies: BLE_API mbed nRF51822
Fork of
Nordic_UART_TEMPLATE_ROHM
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ROHMUSDC
Code Example for ROHM Mutli-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 SENSORSHLD0-EVK-101, please see the following link: https://developer.mbed.org/teams/ROHMUSDC/code/Nordic_UART_TEMPLATE_ROHM/
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
- BM1422 MI Magnetometer Sensor
- KXG03 Gyro/Accel Sensor
Updates from SHLD0 to SHLD1
- Pressure Sensor Changes: Fixed Register Map Changes for BM1383AGLV, See Pressure Sensor Datasheet for more details - TEMP and PRES output switched
- Added new #ifdef section for Magnetometer
- Changed Gyro Device Address (7bit addr now 0x4F, not 0x4E)
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 ROHM shield implementation by contacting the following e-mail:
Diff: main.cpp
- Revision:
- 8:2a19622864c2
- Parent:
- 7:71046927a0e9
- Child:
- 9:878e7fad5347
--- a/main.cpp Fri Dec 18 00:19:01 2015 +0000
+++ b/main.cpp Wed Jun 08 18:20:30 2016 +0000
@@ -21,19 +21,26 @@
* Description: This Applications interfaces ROHM's Multi-Sensor Shield Board with the Nordic nRF51-DK
* This Code supports the following sensor devices on the shield:
* > BDE0600G Temperature Sensor
- * > BM1383GLV Pressure Sensor
+ * > BM1383AGLV Pressure Sensor
* > BU52014 Hall Sensor
* > ML8511 UV Sensor
* > RPR-0521 ALS/PROX Sensor
* > BH1745NUC Color Sensor
* > KMX62 Accel/Mag Sensor
* > KX122 Accel Sensor
+ * > BM1422GMV MI Magnetometer
* > KXG03 Gyro (Currently Unavailable as IC hasn't docked yet)
*
* New Code:
* Added Variable Initialization for utilizing ROHM Sensors
* Added a Section in "Main" to act as initialization
* Added to the "Periodic Callback" to read sensor data and return to Phone/Host
+ *
+ * Updates from SHLD0 to SHLD1:
+ * > Pressure Sensor Changes: Fixed Register Map Changes for BM1383AGLV
+ * (See Pressure Sensor Datasheet for more details - TEMP and PRES output switched)
+ * > Added new #ifdef section for Magnetometer
+ * > Changed Gyro Device Address (7bit addr now 0x4F, not 0x4E)
*
* Additional information about the ROHM MultiSensor Shield Board can be found at the following link:
* https://github.com/ROHMUSDC/ROHM_SensorPlatform_Multi-Sensor-Shield
@@ -53,6 +60,7 @@
#define Color //BH1745, Color Sensor
#define KX122 //KX122, Accelerometer Sensor
#define Pressure //BM1383, Barometric Pressure Sensor
+#define Magnetometer //BM1422GMV, MI Magnetometer Sensor
#define KXG03 //KXG03, Gyroscopic Sensor
#include "mbed.h"
@@ -82,9 +90,8 @@
DigitalIn testButton(p20); //Original
//DigitalIn testButton(p19);
InterruptIn sw4Press(p20); //Original
-//InterruptIn sw4Press(p19);
+//InterruptIn sw4Press(p19);
I2C i2c(p30,p7); //Original DK Kit
-//I2C i2c(p26,p27);
bool RepStart = true;
bool NoRepStart = false;
int i = 1;
@@ -228,6 +235,22 @@
float BM1383_Deci;
#endif
+#ifdef Magnetometer
+int BM1422_addr_w = 0x1E;
+int BM1422_addr_r = 0x1F;
+char BM1422_Content_ReadData[6];
+
+char BM1422_CNTL1_Init[2] = {0x1B, 0xC0};
+char BM1422_CNTL4_HB_Init[2] = {0x5C, 0x00};
+char BM1422_CNTL4_LB_Init[2] = {0x5D, 0x00};
+char BM1422_CNTL3_Init[2] = {0x1D, 0x40};
+
+char BM1422_Addr_ReadData = 0x10;
+short int BM1422_MAG_X_RawOUT = 0;
+short int BM1422_MAG_Y_RawOUT = 0;
+short int BM1422_MAG_Z_RawOUT = 0;
+#endif
+
#ifdef KXG03
int j = 11;
int t = 1;
@@ -242,8 +265,8 @@
short int aveZ3 = 0;
float ave22;
float ave33;
-int KXG03_addr_w = 0x9C; //write
-int KXG03_addr_r = 0x9D; //read
+int KXG03_addr_w = 0x9E; //write
+int KXG03_addr_r = 0x9F; //read
char KXG03_STBY_REG[2] = {0x43, 0x00};
char KXG03_Content_ReadData[6];
//char KXG03_Content_Accel_ReadData[6];
@@ -590,11 +613,11 @@
i2c.write(Press_addr_w, &Press_Addr_ReadData, 1, RepStart);
i2c.read(Press_addr_r, &Press_Content_ReadData[0], 6, NoRepStart);
- BM1383_Temp_Out = (Press_Content_ReadData[0]<<8) | (Press_Content_ReadData[1]);
+ BM1383_Temp_Out = (Press_Content_ReadData[3]<<8) | (Press_Content_ReadData[4]);
BM1383_Temp_Conv_Out = (float)BM1383_Temp_Out/32;
- BM1383_Var = (Press_Content_ReadData[2]<<3) | (Press_Content_ReadData[3] >> 5);
- BM1383_Deci = ((Press_Content_ReadData[3] & 0x1f) << 6 | ((Press_Content_ReadData[4] >> 2)));
+ BM1383_Var = (Press_Content_ReadData[0]<<3) | (Press_Content_ReadData[1] >> 5);
+ BM1383_Deci = ((Press_Content_ReadData[1] & 0x1f) << 6 | ((Press_Content_ReadData[2] >> 2)));
BM1383_Deci = (float)BM1383_Deci* 0.00048828125; //0.00048828125 = 2^-11
BM1383_Pres_Conv_Out = (BM1383_Var + BM1383_Deci); //question pending here...
@@ -613,7 +636,40 @@
#endif
i++;
}
- else if(i == 9){
+
+ else if (i == 9){
+ #ifdef Magnetometer
+ if (m_ble.getGapState().connected) {
+ //Read color Portion from the IC
+ i2c.write(BM1422_addr_w, &BM1422_Addr_ReadData, 1, RepStart);
+ i2c.read(BM1422_addr_r, &BM1422_Content_ReadData[0], 6, NoRepStart);
+
+ BM1422_MAG_X_RawOUT = (BM1422_Content_ReadData[1]<<8) | (BM1422_Content_ReadData[0]);
+ BM1422_MAG_Y_RawOUT = (BM1422_Content_ReadData[3]<<8) | (BM1422_Content_ReadData[2]);
+ BM1422_MAG_Z_RawOUT = (BM1422_Content_ReadData[5]<<8) | (BM1422_Content_ReadData[4]);
+
+
+ len = snprintf((char*) buf, MAX_REPLY_LEN, "Mag Sensor:");
+ m_ble.updateCharacteristicValue(m_uart_service_ptr->getRXCharacteristicHandle(), buf, len);
+ wait_ms(20);
+
+ len = snprintf((char*) buf, MAX_REPLY_LEN, " X_raw= %i", BM1422_MAG_X_RawOUT);
+ m_ble.updateCharacteristicValue(m_uart_service_ptr->getRXCharacteristicHandle(), buf, len);
+ wait_ms(20);
+
+ len = snprintf((char*) buf, MAX_REPLY_LEN, " Y_raw= %i", BM1422_MAG_Y_RawOUT);
+ m_ble.updateCharacteristicValue(m_uart_service_ptr->getRXCharacteristicHandle(), buf, len);
+ wait_ms(20);
+
+ len = snprintf((char*) buf, MAX_REPLY_LEN, " Z_raw= %i", BM1422_MAG_Z_RawOUT);
+ m_ble.updateCharacteristicValue(m_uart_service_ptr->getRXCharacteristicHandle(), buf, len);
+ wait_ms(20);
+ }
+ #endif
+ i++;
+ }
+
+ else if(i == 10){
#ifdef KXG03
if (m_ble.getGapState().connected) {
i2c.write(KXG03_addr_w, &KXG03_Addr_ReadData, 1, RepStart);
@@ -826,6 +882,13 @@
i2c.write(Press_addr_w, &Mode_Control[0], 2, false);
#endif
+ #ifdef Magnetometer
+ i2c.write(BM1422_addr_w, &BM1422_CNTL1_Init[0], 2, false);
+ i2c.write(BM1422_addr_w, &BM1422_CNTL4_HB_Init[0], 2, false);
+ i2c.write(BM1422_addr_w, &BM1422_CNTL4_LB_Init[0], 2, false);
+ i2c.write(BM1422_addr_w, &BM1422_CNTL3_Init[0], 2, false);
+ #endif
+
#ifdef KXG03
i2c.write(KXG03_addr_w, &KXG03_STBY_REG[0], 2, false);
#endif