Example to simulate photoplethysmography for heart rate and transmit via BLE

Dependencies:   BLE_API X_NUCLEO_6180XA1 X_NUCLEO_IDB0XA1 mbed

Fork of BLE_HeartRate_IDB0XA1 by ST

Revision:
22:d191c27f917d
Parent:
21:0e7c08f5386f
--- a/main.cpp	Wed Oct 05 09:16:58 2016 +0000
+++ b/main.cpp	Thu Oct 06 11:35:53 2016 +0000
@@ -17,10 +17,16 @@
 #include "mbed.h"
 #include "ble/BLE.h"
 #include "ble/services/HeartRateService.h"
+#include "x_nucleo_6180xa1.h"
+
+#define VL6180X_I2C_SDA   D14 
+#define VL6180X_I2C_SCL   D15 
+
+static X_NUCLEO_6180XA1 *board=NULL;
 
 DigitalOut led1(LED1, 1);
 
-const static char     DEVICE_NAME[]        = "HRM1";
+const static char     DEVICE_NAME[]        = "HRMFR16";
 static const uint16_t uuid16_list[]        = {GattService::UUID_HEART_RATE_SERVICE};
 
 static volatile bool  triggerSensorPolling = false;
@@ -63,9 +69,12 @@
     ble.gap().onDisconnection(disconnectionCallback);
 
     /* Setup primary service. */
-    uint8_t hrmCounter = 60; // init HRM to 60bps
+    uint8_t hrmCounter = 100; // init HRM to 100bps
     HeartRateService hrService(ble, hrmCounter, HeartRateService::LOCATION_FINGER);
 
+    uint32_t lux, dist;
+    uint32_t luxThreshold = 250;
+
     /* Setup advertising. */
     ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::BREDR_NOT_SUPPORTED | GapAdvertisingData::LE_GENERAL_DISCOVERABLE);
     ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LIST_16BIT_SERVICE_IDS, (uint8_t *)uuid16_list, sizeof(uuid16_list));
@@ -81,13 +90,13 @@
         if (triggerSensorPolling && ble.getGapState().connected) {
             triggerSensorPolling = false;
 
-            // Do blocking calls or whatever is necessary for sensor polling.
-            // In our case, we simply update the HRM measurement.
-            hrmCounter++;
+            board->sensor_top->GetDistance(&dist);
+            board->sensor_top->GetLux(&lux);
 
-            //  60 <= HRM bps <= 100
-            if (hrmCounter == 100) {
-                hrmCounter = 60;
+            if (lux<=luxThreshold) {
+                hrmCounter = 95;
+            } else {
+                hrmCounter = 65;
             }
 
             // update bps
@@ -100,8 +109,17 @@
 
 int main(void)
 {
+    int status;
+
     Ticker ticker;
     ticker.attach(periodicCallback, 1); // blink LED every second
+   
+    DevI2C *device_i2c =new DevI2C(VL6180X_I2C_SDA, VL6180X_I2C_SCL);            
+    /* creates the 6180XA1 expansion board singleton obj */
+    board=X_NUCLEO_6180XA1::Instance(device_i2c, NC,NC,NC,NC);//A3, A2, D13, D2);
+    /* init the 6180XA1 expansion board with default values */
+    status=board->InitBoard();
+    if(status) { printf("Failed to init board!\n\r"); return 0; }
 
     BLE::Instance().init(bleInitComplete);
 }