Nora Vazbyte / Mbed 2 deprecated BLE_Heartrate_VL53L0X

workss

Dependencies:   mbed BLE_API nRF51822 VL53L0X

main.cpp@23:52e8e05df60c, 2019-03-07 (annotated)

Committer:
vazbyte
Date:
Thu Mar 07 14:18:32 2019 +0000
Revision:
23:52e8e05df60c
Parent:
22:406127954d1f
Child:
24:931eeb8a70fc
workss;

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbedAustin 0:cd5b6733aeb1 1 #include "mbed.h"
andresag 19:477567297aac 2 #include "ble/BLE.h"
mbedAustin 1:94152e7d8b5c 3
andresag 19:477567297aac 4 DigitalOut led(LED1, 1);
mbedAustin 9:b33f42191584 5 uint16_t customServiceUUID = 0xA000;
mbedAustin 13:62b1d32745ac 6 uint16_t readCharUUID = 0xA001;
mbedAustin 9:b33f42191584 7 uint16_t writeCharUUID = 0xA002;
mbedAustin 1:94152e7d8b5c 8
vazbyte 23:52e8e05df60c 9 const static char DEVICE_NAME[] = "OCCUPY-CRICHTON-ST"; // change this
mbedAustin 8:60ede963dfe2 10 static const uint16_t uuid16_list[] = {0xFFFF}; //Custom UUID, FFFF is reserved for development
mbedAustin 1:94152e7d8b5c 11
andresag 22:406127954d1f 12 /* Set Up custom Characteristics */
mbedAustin 9:b33f42191584 13 static uint8_t readValue[10] = {0};
mbedAustin 12:6d1f77d0cb37 14 ReadOnlyArrayGattCharacteristic<uint8_t, sizeof(readValue)> readChar(readCharUUID, readValue);
mbedAustin 2:e84c13abc479 15
mbedAustin 9:b33f42191584 16 static uint8_t writeValue[10] = {0};
mbedAustin 12:6d1f77d0cb37 17 WriteOnlyArrayGattCharacteristic<uint8_t, sizeof(writeValue)> writeChar(writeCharUUID, writeValue);
mbedAustin 2:e84c13abc479 18
andresag 22:406127954d1f 19 /* Set up custom service */
mbedAustin 8:60ede963dfe2 20 GattCharacteristic *characteristics[] = {&readChar, &writeChar};
mbedAustin 9:b33f42191584 21 GattService customService(customServiceUUID, characteristics, sizeof(characteristics) / sizeof(GattCharacteristic *));
mbedAustin 2:e84c13abc479 22
mbedAustin 8:60ede963dfe2 23 /*
mbedAustin 8:60ede963dfe2 24 * Restart advertising when phone app disconnects
andresag 19:477567297aac 25 */
andresag 19:477567297aac 26 void disconnectionCallback(const Gap::DisconnectionCallbackParams_t *)
mbedAustin 1:94152e7d8b5c 27 {
andresag 22:406127954d1f 28 BLE::Instance(BLE::DEFAULT_INSTANCE).gap().startAdvertising();
mbedAustin 1:94152e7d8b5c 29 }
mbedAustin 0:cd5b6733aeb1 30
melmon 18:7d89c4fba362 31 void writeCharCallback(const GattWriteCallbackParams *params)
mbedAustin 3:0fb60f81f693 32 {
andresag 22:406127954d1f 33 /* Check to see what characteristic was written, by handle */
melmon 18:7d89c4fba362 34 if(params->handle == writeChar.getValueHandle()) {
andresag 22:406127954d1f 35 /* toggle LED if only 1 byte is written */
mbedAustin 8:60ede963dfe2 36 if(params->len == 1) {
mbedAustin 8:60ede963dfe2 37 led = params->data[0];
andresag 19:477567297aac 38 (params->data[0] == 0x00) ? printf("led on\n\r") : printf("led off\n\r"); // print led toggle
mbedAustin 8:60ede963dfe2 39 }
andresag 22:406127954d1f 40 /* Print the data if more than 1 byte is written */
mbedAustin 8:60ede963dfe2 41 else {
andresag 19:477567297aac 42 printf("Data received: length = %d, data = 0x",params->len);
mbedAustin 8:60ede963dfe2 43 for(int x=0; x < params->len; x++) {
andresag 19:477567297aac 44 printf("%x", params->data[x]);
mbedAustin 8:60ede963dfe2 45 }
andresag 19:477567297aac 46 printf("\n\r");
mbedAustin 8:60ede963dfe2 47 }
andresag 22:406127954d1f 48 /* Update the readChar with the value of writeChar */
andresag 22:406127954d1f 49 BLE::Instance(BLE::DEFAULT_INSTANCE).gattServer().write(readChar.getValueHandle(), params->data, params->len);
mbedAustin 8:60ede963dfe2 50 }
mbedAustin 3:0fb60f81f693 51 }
andresag 22:406127954d1f 52 /*
andresag 22:406127954d1f 53 * Initialization callback
andresag 22:406127954d1f 54 */
andresag 22:406127954d1f 55 void bleInitComplete(BLE::InitializationCompleteCallbackContext *params)
andresag 22:406127954d1f 56 {
andresag 22:406127954d1f 57 BLE &ble = params->ble;
andresag 22:406127954d1f 58 ble_error_t error = params->error;
andresag 22:406127954d1f 59
andresag 22:406127954d1f 60 if (error != BLE_ERROR_NONE) {
andresag 22:406127954d1f 61 return;
andresag 22:406127954d1f 62 }
mbedAustin 0:cd5b6733aeb1 63
andresag 19:477567297aac 64 ble.gap().onDisconnection(disconnectionCallback);
andresag 19:477567297aac 65 ble.gattServer().onDataWritten(writeCharCallback);
mbedAustin 2:e84c13abc479 66
andresag 22:406127954d1f 67 /* Setup advertising */
andresag 19:477567297aac 68 ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::BREDR_NOT_SUPPORTED | GapAdvertisingData::LE_GENERAL_DISCOVERABLE); // BLE only, no classic BT
andresag 19:477567297aac 69 ble.gap().setAdvertisingType(GapAdvertisingParams::ADV_CONNECTABLE_UNDIRECTED); // advertising type
andresag 19:477567297aac 70 ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LOCAL_NAME, (uint8_t *)DEVICE_NAME, sizeof(DEVICE_NAME)); // add name
andresag 19:477567297aac 71 ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LIST_16BIT_SERVICE_IDS, (uint8_t *)uuid16_list, sizeof(uuid16_list)); // UUID's broadcast in advertising packet
andresag 19:477567297aac 72 ble.gap().setAdvertisingInterval(100); // 100ms.
mbedAustin 2:e84c13abc479 73
andresag 22:406127954d1f 74 /* Add our custom service */
mbedAustin 13:62b1d32745ac 75 ble.addService(customService);
mbedAustin 2:e84c13abc479 76
andresag 22:406127954d1f 77 /* Start advertising */
andresag 19:477567297aac 78 ble.gap().startAdvertising();
andresag 22:406127954d1f 79 }
vazbyte 23:52e8e05df60c 80 void wakeup_event_cb() {
vazbyte 23:52e8e05df60c 81 led != led;
vazbyte 23:52e8e05df60c 82 }
andresag 19:477567297aac 83
andresag 22:406127954d1f 84 int main(void)
andresag 22:406127954d1f 85 {
andresag 22:406127954d1f 86 /* initialize stuff */
andresag 22:406127954d1f 87 printf("\n\r********* Starting Main Loop *********\n\r");
andresag 22:406127954d1f 88
andresag 22:406127954d1f 89 BLE& ble = BLE::Instance(BLE::DEFAULT_INSTANCE);
andresag 22:406127954d1f 90 ble.init(bleInitComplete);
andresag 22:406127954d1f 91
vazbyte 23:52e8e05df60c 92 Ticker ticker;
vazbyte 23:52e8e05df60c 93 int counter = 0;
vazbyte 23:52e8e05df60c 94 ticker.attach(wakeup_event_cb, 0.3);
vazbyte 23:52e8e05df60c 95 while (ble.hasInitialized()) {
vazbyte 23:52e8e05df60c 96 counter++;
vazbyte 23:52e8e05df60c 97 printf("hello %i!\n", counter);
andresag 22:406127954d1f 98 ble.waitForEvent(); /* Save power */
mbedAustin 2:e84c13abc479 99 }
andresag 20:fcc752d401ec 100 }