Hem Dutt Dabral / BlueNRG_Usecases

This library includes use cases which can be used for replicating BLE use caes.

MultipleServices.cpp@1:857e59bbf707, 2014-09-25 (annotated)

Committer:
hemddabral
Date:
Thu Sep 25 08:18:37 2014 +0000
Revision:
1:857e59bbf707
Parent:
0:935006092f33
Child:
2:c6894656d2f1
Implemented multiple service use case involving battery, blood pressure, and heart rate service.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
hemddabral 0:935006092f33 1 #include "UseCases.h"
hemddabral 0:935006092f33 2
hemddabral 0:935006092f33 3 #include "mbed.h"
hemddabral 0:935006092f33 4
hemddabral 0:935006092f33 5 DigitalOut myled(LED1);
hemddabral 0:935006092f33 6
hemddabral 0:935006092f33 7 #include "debug.h"
hemddabral 0:935006092f33 8 #include "btle.h"
hemddabral 0:935006092f33 9 #include "BLEDevice.h"
hemddabral 0:935006092f33 10 #include "UUID.h"
hemddabral 0:935006092f33 11 #include "Utils.h"
hemddabral 0:935006092f33 12
hemddabral 0:935006092f33 13 BLEDevice dev;
hemddabral 0:935006092f33 14
hemddabral 0:935006092f33 15 const static char DEVICE_NAME[] = "HEALTH_DEVICE";
hemddabral 0:935006092f33 16 //const uint8_t device_address[6] = { 0x12, 0x34, 0x00, 0xe1, 0x80, 0x02 }; //Peripheral address
hemddabral 0:935006092f33 17
hemddabral 0:935006092f33 18 void Append128bitUUID(uint8_t *uuid128_list, const LongUUID_t HRM_SERVICE_UUID_128);
hemddabral 0:935006092f33 19 void print_array(uint8_t *array);
hemddabral 0:935006092f33 20
hemddabral 0:935006092f33 21 #define MAX_SERVICES_NOS 1
hemddabral 0:935006092f33 22 //typedef uint8_t UUID_128_BIT[16];
hemddabral 0:935006092f33 23 const LongUUID_t HEART_RATE_CHAR_UUID_128 = {0x42,0x82,0x1a,0x40, 0xe4,0x77, 0x11,0xe2, 0x82,0xd0, 0x00,0x02,0xa5,0xd5,0xc5,0x1a};
hemddabral 0:935006092f33 24 const LongUUID_t HRM_SERVICE_UUID_128 = {0x42,0x82,0x1a,0x40, 0xe4,0x77, 0x11,0xe2, 0x82,0xd0, 0x00,0x02,0xa5,0xd5,0xc5,0x1b};
hemddabral 0:935006092f33 25
hemddabral 0:935006092f33 26 uint8_t UUID_Count=0;
hemddabral 0:935006092f33 27
hemddabral 0:935006092f33 28 static uint8_t hrmCounter = 100;
hemddabral 0:935006092f33 29 static uint8_t bpm[2] = {0x00, hrmCounter};
hemddabral 0:935006092f33 30 //static uint8_t hcpCounter = 99;
hemddabral 0:935006092f33 31 static uint8_t hcp[2] = {0x00, hrmCounter};
hemddabral 0:935006092f33 32
hemddabral 0:935006092f33 33 GattCharacteristic hrmRate(GattCharacteristic::UUID_HEART_RATE_MEASUREMENT_CHAR, bpm, sizeof(bpm), sizeof(bpm),
hemddabral 0:935006092f33 34 GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_NOTIFY|GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_READ);
hemddabral 0:935006092f33 35
hemddabral 0:935006092f33 36 GattCharacteristic hcpControlPoint(GattCharacteristic::UUID_HEART_RATE_CONTROL_POINT_CHAR, hcp, sizeof(hcp), sizeof(hcp),
hemddabral 0:935006092f33 37 GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_WRITE_WITHOUT_RESPONSE|
hemddabral 0:935006092f33 38 GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_WRITE);
hemddabral 0:935006092f33 39
hemddabral 0:935006092f33 40
hemddabral 0:935006092f33 41 GattCharacteristic *hrmChars[] = {&hrmRate, &hcpControlPoint};
hemddabral 0:935006092f33 42 UUID HRMSERVICE(GattService::UUID_HEART_RATE_SERVICE);
hemddabral 0:935006092f33 43 GattService hrmService(HRMSERVICE/*GattService::UUID_HEART_RATE_SERVICE*/, hrmChars, sizeof(hrmChars) / sizeof(GattCharacteristic *));
hemddabral 0:935006092f33 44
hemddabral 1:857e59bbf707 45 /* BP Service definition */
hemddabral 0:935006092f33 46 static uint8_t bpValue = 110;
hemddabral 0:935006092f33 47 static uint8_t bloodPressure[2] = {bpValue, 0x00};
hemddabral 0:935006092f33 48 static uint8_t bpDevFeature[2] = {0x00, bpValue};
hemddabral 0:935006092f33 49
hemddabral 0:935006092f33 50 GattCharacteristic bpMeasurment(GattCharacteristic::UUID_BLOOD_PRESSURE_MEASUREMENT_CHAR, bloodPressure, sizeof(bloodPressure), sizeof(bloodPressure),
hemddabral 0:935006092f33 51 GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_NOTIFY|GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_READ);
hemddabral 0:935006092f33 52
hemddabral 0:935006092f33 53 GattCharacteristic bpFeature(GattCharacteristic::UUID_BLOOD_PRESSURE_FEATURE_CHAR, bpDevFeature, sizeof(bpDevFeature), sizeof(bpDevFeature),
hemddabral 0:935006092f33 54 GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_WRITE_WITHOUT_RESPONSE|
hemddabral 0:935006092f33 55 GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_WRITE);
hemddabral 0:935006092f33 56
hemddabral 0:935006092f33 57
hemddabral 0:935006092f33 58 GattCharacteristic *bpChars[] = {&bpMeasurment, &bpFeature};
hemddabral 0:935006092f33 59 UUID BP_SERVICE(GattService::UUID_BLOOD_PRESSURE_SERVICE);
hemddabral 0:935006092f33 60 GattService bpService(BP_SERVICE, bpChars, sizeof(bpChars) / sizeof(GattCharacteristic *));
hemddabral 0:935006092f33 61
hemddabral 1:857e59bbf707 62
hemddabral 1:857e59bbf707 63 /* battery Service definition */
hemddabral 1:857e59bbf707 64 static uint8_t batteryValue = 0;
hemddabral 1:857e59bbf707 65 static uint8_t batteryCharge[3] = {batteryValue, 0x00, 0x00};
hemddabral 1:857e59bbf707 66 static uint8_t batteryState[2] = {0x00, batteryValue};
hemddabral 1:857e59bbf707 67
hemddabral 1:857e59bbf707 68 GattCharacteristic batteryChargeChar(GattCharacteristic::UUID_BATTERY_LEVEL_STATE_CHAR, batteryCharge, sizeof(batteryCharge), sizeof(batteryCharge),
hemddabral 1:857e59bbf707 69 GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_NOTIFY|GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_READ);
hemddabral 1:857e59bbf707 70
hemddabral 1:857e59bbf707 71 GattCharacteristic batteryPowerState(GattCharacteristic::UUID_BATTERY_POWER_STATE_CHAR, batteryState, sizeof(batteryState), sizeof(batteryState),
hemddabral 1:857e59bbf707 72 GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_WRITE_WITHOUT_RESPONSE|
hemddabral 1:857e59bbf707 73 GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_WRITE);
hemddabral 1:857e59bbf707 74
hemddabral 1:857e59bbf707 75
hemddabral 1:857e59bbf707 76 GattCharacteristic *batteryChars[] = {&batteryChargeChar, &batteryPowerState};
hemddabral 1:857e59bbf707 77 UUID BATTERY_SERVICE(GattService::UUID_BATTERY_SERVICE);
hemddabral 1:857e59bbf707 78 GattService batteryService(BATTERY_SERVICE, batteryChars, sizeof(batteryChars) / sizeof(GattCharacteristic *));
hemddabral 1:857e59bbf707 79
hemddabral 1:857e59bbf707 80
hemddabral 1:857e59bbf707 81 static const uint16_t uuid16_list[] = {GattService::UUID_HEART_RATE_SERVICE, GattService::UUID_BLOOD_PRESSURE_SERVICE, GattService::UUID_BATTERY_SERVICE};
hemddabral 0:935006092f33 82
hemddabral 0:935006092f33 83
hemddabral 0:935006092f33 84 void disconnectionCallback(Gap::Handle_t handle)
hemddabral 0:935006092f33 85 {
hemddabral 0:935006092f33 86 DEBUG("Disconnected!\n\r");
hemddabral 0:935006092f33 87 DEBUG("Restarting the advertising process\n\r");
hemddabral 0:935006092f33 88 dev.startAdvertising();
hemddabral 0:935006092f33 89 }
hemddabral 0:935006092f33 90
hemddabral 0:935006092f33 91 void onWriteCallback(uint16_t attributeHandle) {
hemddabral 0:935006092f33 92 DEBUG("Write Callback!!\n\r");
hemddabral 0:935006092f33 93 }
hemddabral 0:935006092f33 94
hemddabral 0:935006092f33 95 void onConnectionCallback(Gap::Handle_t handle) {
hemddabral 0:935006092f33 96 //myled = 1; // LED is ON
hemddabral 0:935006092f33 97 DEBUG("Connected BlueNRG!!\n\r");
hemddabral 0:935006092f33 98 }
hemddabral 0:935006092f33 99
hemddabral 0:935006092f33 100 void Append128bitUUID(uint8_t *array, const LongUUID_t SERVICE_UUID_128)
hemddabral 0:935006092f33 101 {
hemddabral 0:935006092f33 102 for(int x=0;x<16; x++)
hemddabral 0:935006092f33 103 {
hemddabral 0:935006092f33 104 array[x+UUID_Count*16]=SERVICE_UUID_128[x];
hemddabral 0:935006092f33 105 }
hemddabral 0:935006092f33 106 UUID_Count++;
hemddabral 0:935006092f33 107 return;
hemddabral 0:935006092f33 108 }
hemddabral 0:935006092f33 109
hemddabral 0:935006092f33 110 /**
hemddabral 0:935006092f33 111 * Triggered periodically by the 'ticker' interrupt; updates hrmCounter.
hemddabral 0:935006092f33 112 */
hemddabral 0:935006092f33 113 void periodicCallback(void)
hemddabral 0:935006092f33 114 {
hemddabral 0:935006092f33 115 //myled = !myled; /* Do blinky on LED1 while we're waiting for BLE events */
hemddabral 0:935006092f33 116
hemddabral 0:935006092f33 117 if (dev.getGapState().connected) {
hemddabral 0:935006092f33 118 hrmCounter++;
hemddabral 0:935006092f33 119 if (hrmCounter == 175) {
hemddabral 0:935006092f33 120 hrmCounter = 100;
hemddabral 0:935006092f33 121 }
hemddabral 0:935006092f33 122 bpm[1] = hrmCounter;
hemddabral 0:935006092f33 123 //uint16_t t = sizeof(bpm);
hemddabral 0:935006092f33 124 //DEBUG("Char Handle 0x%x OK.",hrmRate.getHandle());
hemddabral 0:935006092f33 125 //dev.readCharacteristicValue(hrmRate.getHandle(), bpm, (uint16_t *const)t);
hemddabral 0:935006092f33 126 dev.updateCharacteristicValue(hrmRate.getHandle(), bpm, sizeof(bpm));
hemddabral 0:935006092f33 127
hemddabral 0:935006092f33 128 bloodPressure[0] = hrmCounter;
hemddabral 0:935006092f33 129 dev.updateCharacteristicValue(bpMeasurment.getHandle(), bloodPressure, sizeof(bloodPressure));
hemddabral 0:935006092f33 130 //DEBUG("Ticker CB..\n\r");
hemddabral 1:857e59bbf707 131
hemddabral 1:857e59bbf707 132 batteryValue++;
hemddabral 1:857e59bbf707 133 batteryCharge[0] = (batteryValue+100)%100;
hemddabral 1:857e59bbf707 134 dev.updateCharacteristicValue(batteryChargeChar.getHandle(), batteryCharge, sizeof(batteryCharge));
hemddabral 0:935006092f33 135 } //else DEBUG("Not Connected..\n\r");
hemddabral 0:935006092f33 136 }
hemddabral 0:935006092f33 137
hemddabral 0:935006092f33 138 void multipleServiceUseCase() {
hemddabral 0:935006092f33 139 Ticker ticker; //For Tick interrupt if used later on (periodic data updates?)
hemddabral 0:935006092f33 140
hemddabral 0:935006092f33 141
hemddabral 0:935006092f33 142 //LongUUID_t HEART_RATE_CHAR_UUID_128, HRM_SERVICE_UUID_128;
hemddabral 0:935006092f33 143 //COPY_HRM_SERVICE_UUID(HRM_SERVICE_UUID_128);
hemddabral 0:935006092f33 144 //COPY_HRM_CHAR_UUID(HEART_RATE_CHAR_UUID_128);
hemddabral 0:935006092f33 145 UUID heart_rate_char_UUID = UUID(HEART_RATE_CHAR_UUID_128);
hemddabral 0:935006092f33 146 UUID hrm_service_UUID = UUID(HRM_SERVICE_UUID_128);
hemddabral 0:935006092f33 147
hemddabral 0:935006092f33 148 myled = 0;//Switch OFF LED1
hemddabral 0:935006092f33 149
hemddabral 0:935006092f33 150 DEBUG("Initializing BlueNRG...\n\r");
hemddabral 0:935006092f33 151 #if 0
hemddabral 0:935006092f33 152 SPI spi(PA_7, PA_6, PA_5); // mosi, miso, sclk
hemddabral 0:935006092f33 153 DigitalOut cs(PB_6);
hemddabral 0:935006092f33 154 cs = 0;
hemddabral 0:935006092f33 155 #endif
hemddabral 0:935006092f33 156 dev.init();
hemddabral 0:935006092f33 157
hemddabral 0:935006092f33 158 dev.onConnection(onConnectionCallback);
hemddabral 0:935006092f33 159 dev.onDisconnection(disconnectionCallback);
hemddabral 0:935006092f33 160 dev.onDataWritten(onWriteCallback);
hemddabral 0:935006092f33 161
hemddabral 0:935006092f33 162 //TODO.
hemddabral 0:935006092f33 163 //dev.setAddress(Gap::ADDR_TYPE_PUBLIC, device_address);//Does not work after gap/gatt init.
hemddabral 0:935006092f33 164 //TODO.
hemddabral 0:935006092f33 165
hemddabral 0:935006092f33 166 //Append128bitUUID(uuid128_list, HRM_SERVICE_UUID_128);
hemddabral 0:935006092f33 167
hemddabral 0:935006092f33 168 /* setup advertising */
hemddabral 0:935006092f33 169 dev.accumulateAdvertisingPayload(GapAdvertisingData::BREDR_NOT_SUPPORTED | GapAdvertisingData::LE_GENERAL_DISCOVERABLE);
hemddabral 0:935006092f33 170
hemddabral 0:935006092f33 171 //TODO:IMP STUFF: 128bit list is basically a uint8_t list. User should know how many services he supports and define the number in MAX_SERVICES_NOS
hemddabral 1:857e59bbf707 172 dev.accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LIST_16BIT_SERVICE_IDS, (uint8_t*)uuid16_list, sizeof(uuid16_list));
hemddabral 0:935006092f33 173
hemddabral 0:935006092f33 174 dev.accumulateAdvertisingPayload(GapAdvertisingData::HEART_RATE_SENSOR_HEART_RATE_BELT);
hemddabral 0:935006092f33 175
hemddabral 0:935006092f33 176 dev.accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LOCAL_NAME, (uint8_t *)DEVICE_NAME, sizeof(DEVICE_NAME));
hemddabral 0:935006092f33 177 dev.setAdvertisingType(GapAdvertisingParams::ADV_CONNECTABLE_UNDIRECTED);
hemddabral 0:935006092f33 178 dev.setAdvertisingInterval(160); /* 100ms; in multiples of 0.625ms. */
hemddabral 0:935006092f33 179 DEBUG("Starting Advertising...\n\r");
hemddabral 0:935006092f33 180 dev.startAdvertising();
hemddabral 0:935006092f33 181
hemddabral 0:935006092f33 182
hemddabral 0:935006092f33 183 dev.addService(bpService);
hemddabral 0:935006092f33 184 dev.addService(hrmService);
hemddabral 1:857e59bbf707 185 dev.addService(batteryService);
hemddabral 0:935006092f33 186
hemddabral 0:935006092f33 187
hemddabral 0:935006092f33 188 //ticker.attach(periodicCallback, 1); Multi threading and called from ISR context does not work!
hemddabral 0:935006092f33 189
hemddabral 0:935006092f33 190 while(1) {
hemddabral 0:935006092f33 191 myled = 1; // LED is ON
hemddabral 0:935006092f33 192 wait(0.5); // 500 ms
hemddabral 0:935006092f33 193 myled = 0; // LED is OFF
hemddabral 0:935006092f33 194 wait(0.5); // 500 ms
hemddabral 0:935006092f33 195 //DEBUG("tic!\n\r");
hemddabral 0:935006092f33 196 periodicCallback();//Works from here!!
hemddabral 0:935006092f33 197
hemddabral 0:935006092f33 198 dev.waitForEvent();
hemddabral 0:935006092f33 199 }
hemddabral 0:935006092f33 200 }
hemddabral 0:935006092f33 201