Revision 4:1c2d208ce418, committed 2017-02-26

Comitter:

galism

Date:

Sun Feb 26 03:16:13 2017 +0000

Parent:

3:7dc284221369

Commit message:

No changes

Changed in this revision

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/AcclerationService.h	Sun Feb 26 03:16:13 2017 +0000
@@ -0,0 +1,101 @@
+/* Senior Project Bluetooth bicycle speedometer
+Author: Michael Galis
+This header file describes the Acceleration Service that I created to be able
+to send the x, y, and z accelerations as the bicycle is moving. These 
+accelerations will be used by the phone to calculate the speed of the bicycle.
+*/
+
+#ifndef __BLE_SERVICE_H__
+#define __BLE_SERVICE_H__
+
+class AccelerationService {
+public:
+    const static uint16_t ACCELERATION_SERVICE_UUID = 0xA010;
+    const static uint16_t X_CHARACTERISTIC_UUID     = 0xA011;
+    const static uint16_t Y_CHARACTERISTIC_UUID     = 0xA012;
+    const static uint16_t Z_CHARACTERISTIC_UUID     = 0xA013;
+    const static uint16_t ALL_CHARACTERISTIC_UUID   = 0x0014;
+
+    AccelerationService(BLE &_ble) :
+        ble(_ble), 
+        xData(X_CHARACTERISTIC_UUID, 0, GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_NOTIFY),
+        yData(Y_CHARACTERISTIC_UUID, 0, GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_NOTIFY),
+        zData(Z_CHARACTERISTIC_UUID, 0, GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_NOTIFY),
+        allState(ALL_CHARACTERISTIC_UUID, 0, GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_NOTIFY)
+    {
+        GattCharacteristic *charTable[] = {&xData,&yData, &zData, &allState};
+        GattService         accelerationService(AccelerationService::ACCELERATION_SERVICE_UUID, charTable, sizeof(charTable) / sizeof(GattCharacteristic *));
+        ble.gattServer().addService(accelerationService);
+    }
+
+    void updateXData(float newData) 
+    {
+        int length = sizeof(float);
+        uint8_t bytes[sizeof(float)]; 
+        for(int i = 0; i < length; i++)
+        {
+            bytes[i] = ((uint8_t*)&newData)[i];
+        }
+        int n = sizeof(bytes); 
+        ble.gattServer().write(xData.getValueHandle(), (uint8_t *)&bytes, n);
+        //int n = sizeof(uint8_t); 
+        //ble.gattServer().write(xData.getValueHandle(), (uint8_t *)&newData, n); 
+    }
+    
+    void updateYData(float newData) 
+    {
+        int length = sizeof(float);
+        uint8_t bytes[sizeof(float)];
+        for(int i = 0; i < length; i++)
+        {
+            bytes[i] = ((uint8_t*)&newData)[i];
+        } 
+        int n = sizeof(bytes);
+        ble.gattServer().write(yData.getValueHandle(), (uint8_t *)&bytes, n); 
+    }
+    
+    void updateZData(float newData) 
+    {
+        int length = sizeof(float);
+        uint8_t bytes[sizeof(float)];
+        for(int i = 0; i < length; i++)
+        {
+            bytes[i] = ((uint8_t*)&newData)[i];
+        }
+        int n = sizeof(bytes);
+        ble.gattServer().write(zData.getValueHandle(), (uint8_t *)&bytes, n); 
+    }
+    
+    void updateALLState(float newState,float newStatey,float newStatez) {
+        
+        int length = 14;
+        uint8_t bytes[length]; 
+        
+        bytes[0] = ((uint8_t*)&newState)[0];
+        bytes[1] = ((uint8_t*)&newState)[1];
+        bytes[2] = ((uint8_t*)&newState)[2];
+        bytes[3] = ((uint8_t*)&newState)[3];
+        bytes[4] = 0xff;
+        bytes[5] = ((uint8_t*)&newStatey)[0];
+        bytes[6] = ((uint8_t*)&newStatey)[1];
+        bytes[7] = ((uint8_t*)&newStatey)[2];
+        bytes[8] = ((uint8_t*)&newStatey)[3];
+        bytes[9] = 0xff;
+        bytes[10] = ((uint8_t*)&newStatez)[0];
+        bytes[11] = ((uint8_t*)&newStatez)[1];
+        bytes[12] = ((uint8_t*)&newStatez)[2];
+        bytes[13] = ((uint8_t*)&newStatez)[3];
+            
+        uint16_t n = sizeof(bytes) / sizeof(bytes[0]);
+        ble.gattServer().write(allState.getValueHandle(), (uint8_t *)&bytes, n); //zapisanie danych do charakterystyki
+    }
+
+private:
+    BLE                              &ble;
+    ReadOnlyGattCharacteristic<float>  xData;
+    ReadOnlyGattCharacteristic<float>  yData;
+    ReadOnlyGattCharacteristic<float>  zData;
+    ReadOnlyArrayGattCharacteristic<uint8_t, 14> allState;
+};
+
+#endif /* #ifndef __BLE_BUTTON_SERVICE_H__ */

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/ReedSwitchService.h	Sun Feb 26 03:16:13 2017 +0000
@@ -0,0 +1,34 @@
+/* Senior Project Bluetooth bicycle speedometer
+Author: Michael Galis
+This header file describes the Reed Switch Service that I created to be able
+to send the state of the reed switch as a magnet passes by.
+*/
+
+#ifndef __BLE_BUTTON_SERVICE_H__
+#define __BLE_BUTTON_SERVICE_H__
+
+class ReedSwitchService {
+public:
+    const static uint16_t REED_SWITCH_SERVICE_UUID              = 0xA006;
+    const static uint16_t REED_SWITCH_STATE_CHARACTERISTIC_UUID = 0xA007;
+
+    ReedSwitchService(BLE &_ble, bool reedSwitchPressedInitial) :
+        ble(_ble), 
+        reedSwitchState(REED_SWITCH_STATE_CHARACTERISTIC_UUID, &reedSwitchPressedInitial, GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_NOTIFY)
+    {
+        GattCharacteristic *charTable[] = {&reedSwitchState};
+        GattService         reedSwitchService(ReedSwitchService::REED_SWITCH_SERVICE_UUID, charTable, sizeof(charTable) / sizeof(GattCharacteristic *));
+        ble.gattServer().addService(reedSwitchService);
+    }
+
+    void updateReedSwitchState(bool newState) 
+    {
+        ble.gattServer().write(reedSwitchState.getValueHandle(), (uint8_t *)&newState, sizeof(bool));
+    }
+
+private:
+    BLE                              &ble;
+    ReadOnlyGattCharacteristic<bool>  reedSwitchState;
+};
+
+#endif /* #ifndef __BLE_BUTTON_SERVICE_H__ */

--- a/Service.h	Sun Apr 10 19:05:36 2016 +0000
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,103 +0,0 @@
-#ifndef __BLE_SERVICE_H__
-#define __BLE_SERVICE_H__
-
-class Service {
-public:
-    const static uint16_t SERVICE_UUID              = 0x0010;
-    const static uint16_t X_CHARACTERISTIC_UUID = 0x0011;
-    const static uint16_t Y_CHARACTERISTIC_UUID = 0x0012;
-    const static uint16_t Z_CHARACTERISTIC_UUID = 0x0013;
-    const static uint16_t ALL_CHARACTERISTIC_UUID = 0x0014;
-
-    Service(BLE &_ble) :
-        ble(_ble), xState(X_CHARACTERISTIC_UUID, 0, GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_NOTIFY),yState(Y_CHARACTERISTIC_UUID, 0, GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_NOTIFY),zState(Z_CHARACTERISTIC_UUID, 0, GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_NOTIFY),allState(ALL_CHARACTERISTIC_UUID, 0, GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_NOTIFY)
-    {
-        GattCharacteristic *charTable[] = {&xState,&yState, &zState, &allState};
-        GattService         Service(Service::SERVICE_UUID, charTable, sizeof(charTable) / sizeof(GattCharacteristic *));
-        ble.gattServer().addService(Service);
-    }
-
-    /*
-    * Update wartosci charakterystyk
-    */
-
-    void updateXState(float newState) {
-        int length = sizeof(float);
-        
-        uint8_t bytes[sizeof(float)]; //tablica podzielonego float'a
-        
-        for(int i = 0; i < length; i++){
-            bytes[i] = ((uint8_t*)&newState)[i];
-        }
-    
-        int n = sizeof(bytes) / sizeof(bytes[0]);
-        ble.gattServer().write(xState.getValueHandle(), (uint8_t *)&bytes, n); //zapisanie danych do charakterystyki
-    }
-    
-    void updateYState(float newState) {
-        int length = sizeof(float);
-        
-        uint8_t bytes[sizeof(float)];//tablica podzielonego float'a
-        
-        for(int i = 0; i < length; i++){
-            bytes[i] = ((uint8_t*)&newState)[i];
-        }
-            
-        int n = sizeof(bytes) / sizeof(bytes[0]);
-        ble.gattServer().write(yState.getValueHandle(), (uint8_t *)&bytes, n); //zapisanie danych do charakterystyki
-    }
-    
-    void updateZState(float newState) {
-        int length = sizeof(float);
-        
-        uint8_t bytes[sizeof(float)];//tablica podzielonego float'a
-          
-        for(int i = 0; i < length; i++){
-            bytes[i] = ((uint8_t*)&newState)[i];
-        }
-          
-        int n = sizeof(bytes) / sizeof(bytes[0]);
-        ble.gattServer().write(zState.getValueHandle(), (uint8_t *)&bytes, n); //zapisanie danych do charakterystyki
-    }
-    
-    void updateALLState(float newState,float newStatey,float newStatez) {
-        
-        int length = 14;
-        
-        uint8_t bytes[14]; //tablica podzielonych float'ow
-        
-        /*
-        *   dzielenie float'ow x y z do tablicy 
-        *   mona bylo zrobic forem ;)
-        */
-        
-        bytes[0] = ((uint8_t*)&newState)[0];
-        bytes[1] = ((uint8_t*)&newState)[1];
-        bytes[2] = ((uint8_t*)&newState)[2];
-        bytes[3] = ((uint8_t*)&newState)[3];
-        bytes[4] = 0xff;
-        bytes[5] = ((uint8_t*)&newStatey)[0];
-        bytes[6] = ((uint8_t*)&newStatey)[1];
-        bytes[7] = ((uint8_t*)&newStatey)[2];
-        bytes[8] = ((uint8_t*)&newStatey)[3];
-        bytes[9] = 0xff;
-        bytes[10] = ((uint8_t*)&newStatez)[0];
-        bytes[11] = ((uint8_t*)&newStatez)[1];
-        bytes[12] = ((uint8_t*)&newStatez)[2];
-        bytes[13] = ((uint8_t*)&newStatez)[3];
-            
-            
-        uint16_t n = sizeof(bytes) / sizeof(bytes[0]);
-        
-        ble.gattServer().write(allState.getValueHandle(), (uint8_t *)&bytes, n); //zapisanie danych do charakterystyki
-    }
-
-private:
-    BLE                              &ble;
-    ReadOnlyGattCharacteristic<float>  xState;
-    ReadOnlyGattCharacteristic<float>  yState;
-    ReadOnlyGattCharacteristic<float>  zState;
-    ReadOnlyArrayGattCharacteristic<uint8_t, 14> allState;
-};
-
-#endif /* #ifndef __BLE_BUTTON_SERVICE_H__ */

--- a/main.cpp	Sun Apr 10 19:05:36 2016 +0000
+++ b/main.cpp	Sun Feb 26 03:16:13 2017 +0000
@@ -1,35 +1,48 @@
+/* Senior Project Bluetooth bicycle speedometer
+Author: Michael Galis
+This is the main file, it implements both Acceleration Service and Reed Switch
+Service to send all the necessary data over bluetooth in organized packages. 
+Also there is code to reed from the accelerometer over an I2C connection.
+*/
+
 #include "mbed.h"
 #include "ble/BLE.h"
 #include "MMA8452Q.h"
-#include "Service.h"
+#include "AcclerationService.h"
+#include "ReedSwitchService.h"
 
-MMA8452Q accel(P0_0, P0_1, 0x1D); //deklaracja obiektu akcelerometru (P0_0 -> SDA, P0_1 -> SCL, 0x1D -> ID urzadzenia)
+#define REED_SWITCH     P0_5
+
+MMA8452Q accel(P0_10, P0_8, 0x1D);  //Declare accel object at I2C pins(P0_0 -> SDA, P0_1 -> SCL, 0x1D -> Accelerometer Address )
 Ticker ticker;
-float x,y,z; //zmienne do których przypisywane są wartosci odczytu x y z z akcelerometru
+float x,y,z;                        //variables assigned values to read x, y, and z accelerometer numbers
+//uint16_t x,y,z;
+InterruptIn button(REED_SWITCH);
+
+const static char     DEVICE_NAME[] = "BLE_Bike";                                       //Name of BLE Device
+static const uint16_t uuid16_list[] = {ReedSwitchService::REED_SWITCH_SERVICE_UUID,     //UUID's of Services
+                                       AccelerationService::ACCELERATION_SERVICE_UUID};
 
-const static char     DEVICE_NAME[] = "BLE_Accel"; 
-static const uint16_t uuid16_list[] = {Service::SERVICE_UUID};
+enum {                                                  //Different states of the reed switch
+    RELEASED = 0,
+    PRESSED,
+    IDLE
+};
+static uint8_t reedSwitchState = IDLE;                  //Reed switch is initially idle
+static ReedSwitchService *reedSwitchServicePtr;
+static AccelerationService *accelerationServicePtr;
+static volatile bool  triggerSensorPolling = false;
 
 
-static Service *ServicePtr;
-
-void f(){    
-    /*
-    * Odczyt x y z 
-    */
-    x=accel.readX(); 
-    y=accel.readY();
-    z=accel.readZ();
-    
-    /*
-    * Update wartosci w charakterystykach x y z i all
-    */    
-    ServicePtr->updateXState(x);
-    ServicePtr->updateYState(y);
-    ServicePtr->updateZState(z);
-    ServicePtr->updateALLState(x,y,z);
+void reedSwitchPressedCallback(void)            //Change the Reed switch state to Pressed
+{
+    reedSwitchState = PRESSED;  
 }
 
+void reedSwitchReleasedCallback(void)           //Change the Reed switch state to Released
+{
+    reedSwitchState = RELEASED;
+}
 
 void disconnectionCallback(const Gap::DisconnectionCallbackParams_t *params)
 {
@@ -37,11 +50,10 @@
 }
 
 /**
- * This function is called when the ble initialization process has failled
+ * This function is called when the ble initialization process has failed
  */
 void onBleInitError(BLE &ble, ble_error_t error)
 {
-    /* Initialization error handling should go here */
 }
 
 /**
@@ -66,7 +78,8 @@
     ble.gap().onDisconnection(disconnectionCallback);
 
     /* Setup primary service */
-    ServicePtr = new Service(ble);
+    reedSwitchServicePtr = new ReedSwitchService(ble, false /* initial value for button pressed */);
+    accelerationServicePtr = new AccelerationService(ble);
 
     /* setup advertising */
     ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::BREDR_NOT_SUPPORTED | GapAdvertisingData::LE_GENERAL_DISCOVERABLE);
@@ -78,19 +91,48 @@
 
 }
 
+void periodicCallback(void)
+{
+
+    /* Note that the periodicCallback() executes in interrupt context, so it is safer to do
+     * heavy-weight sensor polling from the main thread. */
+    triggerSensorPolling = true;
+}
+
 int main(void)
 {
+    button.fall(reedSwitchPressedCallback);
+    button.rise(reedSwitchReleasedCallback);
+    
     BLE &ble = BLE::Instance();
     ble.init(bleInitComplete);
     
     accel.init();
-    ticker.attach(f,1);
+    ticker.attach(periodicCallback,0.2);
+    
     
     /* SpinWait for initialization to complete. This is necessary because the
      * BLE object is used in the main loop below. */
     while (ble.hasInitialized()  == false) { /* spin loop */ }
     
+    
     while (true) {
+        if (reedSwitchState != IDLE) {                                      //When the Reed Switch changes states
+            reedSwitchServicePtr->updateReedSwitchState(reedSwitchState);   //update the value over ble
+            reedSwitchState = IDLE;
+        }
+        if (triggerSensorPolling && ble.getGapState().connected)
+        {
+            triggerSensorPolling = false;
+            x=accel.readX(); 
+            y=accel.readY();
+            z=accel.readZ();
+     
+            accelerationServicePtr->updateXData(x);
+            accelerationServicePtr->updateYData(y);
+            accelerationServicePtr->updateZData(z);
+            //accelerationServicePtr->updateALLState(x,y,z);
+        }
         ble.waitForEvent();
     }
 }

--- a/nRF51822.lib	Sun Apr 10 19:05:36 2016 +0000
+++ b/nRF51822.lib	Sun Feb 26 03:16:13 2017 +0000
@@ -1,1 +1,1 @@
-http://mbed.org/teams/Nordic-Semiconductor/code/nRF51822/#1751e2e2637a
+https://developer.mbed.org/users/galism/code/nRF51822/#abe58b2a2b5d