younes sami / Mbed OS Sending_data_blte

Reading and sending sensor data over BLE

Dependencies:   BSP_B-L475E-IOT01

source/main.cpp@39:ddabcba6eff1, 2019-07-10 (annotated)

Committer:
samilive2011
Date:
Wed Jul 10 20:09:49 2019 +0000
Revision:
39:ddabcba6eff1
Parent:
27:ff1fb7b5f9ee 
Sending data over BLE

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 11:7404978b24e7 1 #include <events/mbed_events.h>
mbed_official 2:864ddfb70a9c 2 #include <mbed.h>
mbed_official 2:864ddfb70a9c 3 #include "ble/BLE.h"
samilive2011 39:ddabcba6eff1 4 #include "Sensorservice.h"
samilive2011 39:ddabcba6eff1 5 #include "stm32l475e_iot01_tsensor.h"
samilive2011 39:ddabcba6eff1 6 #include "stm32l475e_iot01_hsensor.h"
samilive2011 39:ddabcba6eff1 7 #include "stm32l475e_iot01_magneto.h"
samilive2011 39:ddabcba6eff1 8 #include "stm32l475e_iot01_gyro.h"
samilive2011 39:ddabcba6eff1 9 #include "stm32l475e_iot01_accelero.h"
samilive2011 39:ddabcba6eff1 10 #include "stm32l475e_iot01_psensor.h"
samilive2011 39:ddabcba6eff1 11
samilive2011 39:ddabcba6eff1 12
samilive2011 39:ddabcba6eff1 13 EnvironmentalService *SensorPtr;
samilive2011 39:ddabcba6eff1 14 static float currentTemperature = 0.0;
samilive2011 39:ddabcba6eff1 15 static float currentHumidity = 0.0;
samilive2011 39:ddabcba6eff1 16 static float currentPressure = 0.0;
samilive2011 39:ddabcba6eff1 17 static int16_t MagnetoXYZ[3] ={0};
samilive2011 39:ddabcba6eff1 18 static int16_t AcceleroXYZ[3] ={0};
samilive2011 39:ddabcba6eff1 19 static float GyroXYZ[3] ={0};
samilive2011 39:ddabcba6eff1 20
samilive2011 39:ddabcba6eff1 21 Serial pc(USBTX,USBRX);
mbed_official 2:864ddfb70a9c 22
mbed_official 2:864ddfb70a9c 23 DigitalOut alivenessLED(LED1, 0);
mbed_official 2:864ddfb70a9c 24 DigitalOut actuatedLED(LED2, 0);
samilive2011 39:ddabcba6eff1 25 DigitalOut led(LED1, 1);
samilive2011 39:ddabcba6eff1 26 uint16_t customServiceUUID = 0xA000; /*Service*/
samilive2011 39:ddabcba6eff1 27 uint16_t readCharUUID = 0xA001; /*Read*/
samilive2011 39:ddabcba6eff1 28 uint16_t writeCharUUID = 0xA002; /*Write*/
mbed_official 2:864ddfb70a9c 29
samilive2011 39:ddabcba6eff1 30 const static char DEVICE_NAME[] = "Projet";
samilive2011 39:ddabcba6eff1 31 static const uint16_t uuid16_list[] = {GattService::UUID_ENVIRONMENTAL_SERVICE};
samilive2011 39:ddabcba6eff1 32
mbed_official 2:864ddfb70a9c 33
samilive2011 39:ddabcba6eff1 34 static uint8_t writeValue[10] = {0};
samilive2011 39:ddabcba6eff1 35 WriteOnlyArrayGattCharacteristic<uint8_t, sizeof(writeValue)> writeChar(writeCharUUID, writeValue);
samilive2011 39:ddabcba6eff1 36
mbed_official 2:864ddfb70a9c 37
samilive2011 39:ddabcba6eff1 38 GattCharacteristic *characteristics[] = {&writeChar};
samilive2011 39:ddabcba6eff1 39 GattService customService(customServiceUUID, characteristics, sizeof(characteristics) / sizeof(GattCharacteristic *));
samilive2011 39:ddabcba6eff1 40
samilive2011 39:ddabcba6eff1 41 static EventQueue eventQueue(10 * EVENTS_EVENT_SIZE);
samilive2011 39:ddabcba6eff1 42
mbed_official 2:864ddfb70a9c 43
mbed_official 2:864ddfb70a9c 44 void disconnectionCallback(const Gap::DisconnectionCallbackParams_t *params)
mbed_official 2:864ddfb70a9c 45 {
mbed_official 2:864ddfb70a9c 46 (void) params;
mbed_official 2:864ddfb70a9c 47 BLE::Instance().gap().startAdvertising();
mbed_official 2:864ddfb70a9c 48 }
mbed_official 2:864ddfb70a9c 49
samilive2011 39:ddabcba6eff1 50
samilive2011 39:ddabcba6eff1 51 void updateTSensorValue(void) {
samilive2011 39:ddabcba6eff1 52 currentTemperature = BSP_TSENSOR_ReadTemp();
samilive2011 39:ddabcba6eff1 53 currentHumidity = BSP_HSENSOR_ReadHumidity();
samilive2011 39:ddabcba6eff1 54 currentPressure = BSP_PSENSOR_ReadPressure();
samilive2011 39:ddabcba6eff1 55 BSP_MAGNETO_GetXYZ(MagnetoXYZ);
samilive2011 39:ddabcba6eff1 56 BSP_GYRO_GetXYZ(GyroXYZ);
samilive2011 39:ddabcba6eff1 57 BSP_ACCELERO_AccGetXYZ(AcceleroXYZ);
samilive2011 39:ddabcba6eff1 58 SensorPtr->updateTemperature(currentTemperature);
samilive2011 39:ddabcba6eff1 59 SensorPtr->updateHumidity(currentHumidity);
samilive2011 39:ddabcba6eff1 60 SensorPtr->updatePressure(currentPressure);
samilive2011 39:ddabcba6eff1 61 SensorPtr->updateAccelero(AcceleroXYZ);
samilive2011 39:ddabcba6eff1 62 SensorPtr->updateMagneto(MagnetoXYZ);
samilive2011 39:ddabcba6eff1 63 SensorPtr->updateGyro(GyroXYZ);
mbed_official 2:864ddfb70a9c 64 }
mbed_official 2:864ddfb70a9c 65
samilive2011 39:ddabcba6eff1 66
samilive2011 39:ddabcba6eff1 67 void blinkCallback(void)
samilive2011 39:ddabcba6eff1 68 {
samilive2011 39:ddabcba6eff1 69 alivenessLED = !alivenessLED;
samilive2011 39:ddabcba6eff1 70 if (BLE::Instance().gap().getState().connected) {
samilive2011 39:ddabcba6eff1 71 eventQueue.call(updateTSensorValue);
mbed_official 2:864ddfb70a9c 72 }
mbed_official 2:864ddfb70a9c 73 }
mbed_official 2:864ddfb70a9c 74
samilive2011 39:ddabcba6eff1 75 /********Lecture des donées et traitement selon leurs taille*******/
samilive2011 39:ddabcba6eff1 76 void onDataWrittenCallback(const GattWriteCallbackParams *params) {
samilive2011 39:ddabcba6eff1 77 if ((params->handle == writeChar.getValueHandle())) {
samilive2011 39:ddabcba6eff1 78 if(params->len == 1) {
samilive2011 39:ddabcba6eff1 79 actuatedLED = *(params->data);
samilive2011 39:ddabcba6eff1 80 pc.printf("Data received: length = %d\n\r",params->len);
samilive2011 39:ddabcba6eff1 81 if(actuatedLED == 1){
samilive2011 39:ddabcba6eff1 82 pc.printf("LED is on\n\r");
samilive2011 39:ddabcba6eff1 83 }
samilive2011 39:ddabcba6eff1 84 else{
samilive2011 39:ddabcba6eff1 85 pc.printf("LED is off\n\r");
samilive2011 39:ddabcba6eff1 86 }
samilive2011 39:ddabcba6eff1 87 for(int x=0; x < params->len; x++) {
samilive2011 39:ddabcba6eff1 88 pc.printf("%x", params->data[x]);
samilive2011 39:ddabcba6eff1 89 pc.printf("\n\r");
samilive2011 39:ddabcba6eff1 90 }
samilive2011 39:ddabcba6eff1 91 }
samilive2011 39:ddabcba6eff1 92 else {
samilive2011 39:ddabcba6eff1 93 pc.printf("Data received: length = %d, data = 0x",params->len);
samilive2011 39:ddabcba6eff1 94 for(int x=0; x < params->len; x++) {
samilive2011 39:ddabcba6eff1 95 pc.printf("%x", params->data[x]);
samilive2011 39:ddabcba6eff1 96 }
samilive2011 39:ddabcba6eff1 97 pc.printf("\n\r");
samilive2011 39:ddabcba6eff1 98 }
samilive2011 39:ddabcba6eff1 99
samilive2011 39:ddabcba6eff1 100 }
samilive2011 39:ddabcba6eff1 101 }
samilive2011 39:ddabcba6eff1 102
samilive2011 39:ddabcba6eff1 103
mbed_official 2:864ddfb70a9c 104 void onBleInitError(BLE &ble, ble_error_t error)
mbed_official 2:864ddfb70a9c 105 {
samilive2011 39:ddabcba6eff1 106 pc.printf("Erreur\n\r");
mbed_official 2:864ddfb70a9c 107 }
mbed_official 2:864ddfb70a9c 108
samilive2011 39:ddabcba6eff1 109
mbed_official 2:864ddfb70a9c 110 void bleInitComplete(BLE::InitializationCompleteCallbackContext *params)
mbed_official 2:864ddfb70a9c 111 {
mbed_official 2:864ddfb70a9c 112 BLE& ble = params->ble;
mbed_official 2:864ddfb70a9c 113 ble_error_t error = params->error;
mbed_official 2:864ddfb70a9c 114
mbed_official 2:864ddfb70a9c 115 if (error != BLE_ERROR_NONE) {
mbed_official 2:864ddfb70a9c 116 onBleInitError(ble, error);
mbed_official 2:864ddfb70a9c 117 return;
mbed_official 2:864ddfb70a9c 118 }
mbed_official 2:864ddfb70a9c 119
mbed_official 2:864ddfb70a9c 120 if(ble.getInstanceID() != BLE::DEFAULT_INSTANCE) {
mbed_official 2:864ddfb70a9c 121 return;
mbed_official 2:864ddfb70a9c 122 }
mbed_official 2:864ddfb70a9c 123
mbed_official 2:864ddfb70a9c 124 ble.gap().onDisconnection(disconnectionCallback);
samilive2011 39:ddabcba6eff1 125 SensorPtr = new EnvironmentalService(ble);
mbed_official 2:864ddfb70a9c 126 ble.gattServer().onDataWritten(onDataWrittenCallback);
mbed_official 2:864ddfb70a9c 127
mbed_official 2:864ddfb70a9c 128
samilive2011 39:ddabcba6eff1 129 /************************** advertising***********************/
mbed_official 2:864ddfb70a9c 130 ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::BREDR_NOT_SUPPORTED | GapAdvertisingData::LE_GENERAL_DISCOVERABLE);
mbed_official 2:864ddfb70a9c 131 ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LIST_16BIT_SERVICE_IDS, (uint8_t *)uuid16_list, sizeof(uuid16_list));
mbed_official 2:864ddfb70a9c 132 ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LOCAL_NAME, (uint8_t *)DEVICE_NAME, sizeof(DEVICE_NAME));
mbed_official 2:864ddfb70a9c 133 ble.gap().setAdvertisingType(GapAdvertisingParams::ADV_CONNECTABLE_UNDIRECTED);
mbed_official 2:864ddfb70a9c 134 ble.gap().setAdvertisingInterval(1000); /* 1000ms. */
samilive2011 39:ddabcba6eff1 135 ble.addService(customService);
mbed_official 2:864ddfb70a9c 136 ble.gap().startAdvertising();
mbed_official 2:864ddfb70a9c 137 }
mbed_official 2:864ddfb70a9c 138
mbed_official 2:864ddfb70a9c 139 void scheduleBleEventsProcessing(BLE::OnEventsToProcessCallbackContext* context) {
mbed_official 2:864ddfb70a9c 140 BLE &ble = BLE::Instance();
mbed_official 11:7404978b24e7 141 eventQueue.call(Callback<void()>(&ble, &BLE::processEvents));
mbed_official 2:864ddfb70a9c 142 }
mbed_official 2:864ddfb70a9c 143
samilive2011 39:ddabcba6eff1 144 /******************************MAIN*******************************/
samilive2011 39:ddabcba6eff1 145
mbed_official 2:864ddfb70a9c 146 int main()
mbed_official 2:864ddfb70a9c 147 {
samilive2011 39:ddabcba6eff1 148 BSP_TSENSOR_Init();
samilive2011 39:ddabcba6eff1 149 BSP_HSENSOR_Init();
samilive2011 39:ddabcba6eff1 150 BSP_PSENSOR_Init();
samilive2011 39:ddabcba6eff1 151 BSP_MAGNETO_Init();
samilive2011 39:ddabcba6eff1 152 BSP_GYRO_Init();
samilive2011 39:ddabcba6eff1 153 BSP_ACCELERO_Init();
samilive2011 39:ddabcba6eff1 154 pc.printf("BLE is Working\n\r");
mbed_official 11:7404978b24e7 155 eventQueue.call_every(500, blinkCallback);
samilive2011 39:ddabcba6eff1 156
mbed_official 2:864ddfb70a9c 157
mbed_official 2:864ddfb70a9c 158 BLE &ble = BLE::Instance();
mbed_official 2:864ddfb70a9c 159 ble.onEventsToProcess(scheduleBleEventsProcessing);
mbed_official 2:864ddfb70a9c 160 ble.init(bleInitComplete);
mbed_official 2:864ddfb70a9c 161
mbed_official 11:7404978b24e7 162 eventQueue.dispatch_forever();
mbed_official 2:864ddfb70a9c 163
mbed_official 2:864ddfb70a9c 164 return 0;
mbed_official 2:864ddfb70a9c 165 }