Mert Kaya / Mbed 2 deprecated BLE_Touch_Signal

BLE code for touch signal

Dependencies:   BLE_API mbed nRF51822

Fork of BLE_GATT_Example by Bluetooth Low Energy

main.cpp@19:477567297aac, 2015-10-20 (annotated)

Committer:
andresag
Date:
Tue Oct 20 13:41:38 2015 +0000
Revision:
19:477567297aac
Parent:
17:32973972d2dd
Child:
20:fcc752d401ec
Updated BLE and mbed dependencies, also modified demo code to comply with changes to the API.

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 BLE ble;
andresag 19:477567297aac 5 DigitalOut led(LED1, 1);
mbedAustin 9:b33f42191584 6 uint16_t customServiceUUID = 0xA000;
mbedAustin 13:62b1d32745ac 7 uint16_t readCharUUID = 0xA001;
mbedAustin 9:b33f42191584 8 uint16_t writeCharUUID = 0xA002;
mbedAustin 1:94152e7d8b5c 9
mbedAustin 7:f6814152873c 10 const static char DEVICE_NAME[] = "ChangeMe!!"; // change this
mbedAustin 8:60ede963dfe2 11 static const uint16_t uuid16_list[] = {0xFFFF}; //Custom UUID, FFFF is reserved for development
mbedAustin 1:94152e7d8b5c 12
mbedAustin 10:6acaa9f0ef85 13 // Set Up custom Characteristics
mbedAustin 9:b33f42191584 14 static uint8_t readValue[10] = {0};
mbedAustin 12:6d1f77d0cb37 15 ReadOnlyArrayGattCharacteristic<uint8_t, sizeof(readValue)> readChar(readCharUUID, readValue);
mbedAustin 2:e84c13abc479 16
mbedAustin 9:b33f42191584 17 static uint8_t writeValue[10] = {0};
mbedAustin 12:6d1f77d0cb37 18 WriteOnlyArrayGattCharacteristic<uint8_t, sizeof(writeValue)> writeChar(writeCharUUID, writeValue);
mbedAustin 2:e84c13abc479 19
mbedAustin 2:e84c13abc479 20 // Set up custom service
mbedAustin 8:60ede963dfe2 21 GattCharacteristic *characteristics[] = {&readChar, &writeChar};
mbedAustin 9:b33f42191584 22 GattService customService(customServiceUUID, characteristics, sizeof(characteristics) / sizeof(GattCharacteristic *));
mbedAustin 2:e84c13abc479 23
mbedAustin 2:e84c13abc479 24
mbedAustin 8:60ede963dfe2 25 /*
mbedAustin 8:60ede963dfe2 26 * Restart advertising when phone app disconnects
andresag 19:477567297aac 27 */
andresag 19:477567297aac 28 void disconnectionCallback(const Gap::DisconnectionCallbackParams_t *)
mbedAustin 1:94152e7d8b5c 29 {
andresag 19:477567297aac 30 ble.gap().startAdvertising();
mbedAustin 1:94152e7d8b5c 31 }
mbedAustin 0:cd5b6733aeb1 32
andresag 19:477567297aac 33 /*
mbedAustin 8:60ede963dfe2 34 * handle writes to writeCharacteristic
mbedAustin 8:60ede963dfe2 35 */
andresag 19:477567297aac 36 void writeCharCallback(const GattWriteCallbackParams *params)
mbedAustin 3:0fb60f81f693 37 {
mbedAustin 8:60ede963dfe2 38 // check to see what characteristic was written, by handle
andresag 19:477567297aac 39 if(params->handle == writeChar.getValueHandle()) {
mbedAustin 8:60ede963dfe2 40 // toggle LED if only 1 byte is written
mbedAustin 8:60ede963dfe2 41 if(params->len == 1) {
mbedAustin 8:60ede963dfe2 42 led = params->data[0];
andresag 19:477567297aac 43 (params->data[0] == 0x00) ? printf("led on\n\r") : printf("led off\n\r"); // print led toggle
mbedAustin 8:60ede963dfe2 44 }
mbedAustin 8:60ede963dfe2 45 // print the data if more than 1 byte is written
mbedAustin 8:60ede963dfe2 46 else {
andresag 19:477567297aac 47 printf("Data received: length = %d, data = 0x",params->len);
mbedAustin 8:60ede963dfe2 48 for(int x=0; x < params->len; x++) {
andresag 19:477567297aac 49 printf("%x", params->data[x]);
mbedAustin 8:60ede963dfe2 50 }
andresag 19:477567297aac 51 printf("\n\r");
mbedAustin 8:60ede963dfe2 52 }
mbedAustin 8:60ede963dfe2 53 // update the readChar with the value of writeChar
andresag 19:477567297aac 54 ble.updateCharacteristicValue(readChar.getValueHandle(), params->data,params->len);
mbedAustin 8:60ede963dfe2 55 }
mbedAustin 3:0fb60f81f693 56 }
mbedAustin 0:cd5b6733aeb1 57
mbedAustin 8:60ede963dfe2 58 /*
mbedAustin 8:60ede963dfe2 59 * main loop
andresag 19:477567297aac 60 */
mbedAustin 0:cd5b6733aeb1 61 int
mbedAustin 0:cd5b6733aeb1 62 main(void)
mbedAustin 0:cd5b6733aeb1 63 {
mbedAustin 8:60ede963dfe2 64 /* initialize stuff */
mbedAustin 8:60ede963dfe2 65 printf("\n\r********* Starting Main Loop *********\n\r");
mbedAustin 2:e84c13abc479 66 ble.init();
andresag 19:477567297aac 67 ble.gap().onDisconnection(disconnectionCallback);
andresag 19:477567297aac 68 ble.gattServer().onDataWritten(writeCharCallback);
mbedAustin 2:e84c13abc479 69
mbedAustin 2:e84c13abc479 70 /* setup advertising */
andresag 19:477567297aac 71 ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::BREDR_NOT_SUPPORTED | GapAdvertisingData::LE_GENERAL_DISCOVERABLE); // BLE only, no classic BT
andresag 19:477567297aac 72 ble.gap().setAdvertisingType(GapAdvertisingParams::ADV_CONNECTABLE_UNDIRECTED); // advertising type
andresag 19:477567297aac 73 ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LOCAL_NAME, (uint8_t *)DEVICE_NAME, sizeof(DEVICE_NAME)); // add name
andresag 19:477567297aac 74 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 75 ble.gap().setAdvertisingInterval(100); // 100ms.
mbedAustin 2:e84c13abc479 76
mbedAustin 8:60ede963dfe2 77 // add our custom service
mbedAustin 13:62b1d32745ac 78 ble.addService(customService);
mbedAustin 2:e84c13abc479 79
mbedAustin 13:62b1d32745ac 80 // start advertising
andresag 19:477567297aac 81 ble.gap().startAdvertising();
andresag 19:477567297aac 82
mbedAustin 9:b33f42191584 83 // infinite loop waiting for BLE interrupt events
mbedAustin 2:e84c13abc479 84 while (true) {
mbedAustin 2:e84c13abc479 85 ble.waitForEvent(); //Save power
mbedAustin 2:e84c13abc479 86 }
mbedAustin 8:60ede963dfe2 87 }