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Dependencies:   BLE_API mbed nRF51822

Fork of BLE_GATT_Example by Bluetooth Low Energy

main.cpp@27:ed42554cf870, 2017-06-10 (annotated)

Committer:
andreydung
Date:
Sat Jun 10 01:03:26 2017 +0000
Revision:
27:ed42554cf870
Parent:
26:b3e90d7672f8
Child:
28:382c630bae02
it works!!

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
andreydung 27:ed42554cf870 4 DigitalOut led(P0_19, 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
andreydung 27:ed42554cf870 9 const static char DEVICE_NAME[] = "ChangeMe!!"; // change this
andreydung 27:ed42554cf870 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
andreydung 27:ed42554cf870 23
andreydung 27:ed42554cf870 24 /*
andreydung 27:ed42554cf870 25 * Restart advertising when phone app disconnects
andreydung 27:ed42554cf870 26 */
andresag 19:477567297aac 27 void disconnectionCallback(const Gap::DisconnectionCallbackParams_t *)
mbedAustin 1:94152e7d8b5c 28 {
andreydung 27:ed42554cf870 29 led = 1; // just in case
andresag 22:406127954d1f 30 BLE::Instance(BLE::DEFAULT_INSTANCE).gap().startAdvertising();
mbedAustin 1:94152e7d8b5c 31 }
mbedAustin 0:cd5b6733aeb1 32
andreydung 27:ed42554cf870 33 /*
andreydung 27:ed42554cf870 34 * Handle writes to writeCharacteristic
andreydung 27:ed42554cf870 35 */
melmon 18:7d89c4fba362 36 void writeCharCallback(const GattWriteCallbackParams *params)
mbedAustin 3:0fb60f81f693 37 {
andresag 22:406127954d1f 38 /* Check to see what characteristic was written, by handle */
melmon 18:7d89c4fba362 39 if(params->handle == writeChar.getValueHandle()) {
andreydung 27:ed42554cf870 40 // since LED is pullup mode
andreydung 27:ed42554cf870 41 led = 0;
andreydung 27:ed42554cf870 42 wait(1.0);
andreydung 27:ed42554cf870 43 led = 1;
mbedAustin 8:60ede963dfe2 44 }
mbedAustin 3:0fb60f81f693 45 }
andresag 22:406127954d1f 46 /*
andresag 22:406127954d1f 47 * Initialization callback
andresag 22:406127954d1f 48 */
andresag 22:406127954d1f 49 void bleInitComplete(BLE::InitializationCompleteCallbackContext *params)
andresag 22:406127954d1f 50 {
andresag 22:406127954d1f 51 BLE &ble = params->ble;
andresag 22:406127954d1f 52 ble_error_t error = params->error;
andresag 22:406127954d1f 53
andresag 22:406127954d1f 54 if (error != BLE_ERROR_NONE) {
andresag 22:406127954d1f 55 return;
andresag 22:406127954d1f 56 }
mbedAustin 0:cd5b6733aeb1 57
andresag 19:477567297aac 58 ble.gap().onDisconnection(disconnectionCallback);
andresag 19:477567297aac 59 ble.gattServer().onDataWritten(writeCharCallback);
mbedAustin 2:e84c13abc479 60
andresag 22:406127954d1f 61 /* Setup advertising */
andresag 19:477567297aac 62 ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::BREDR_NOT_SUPPORTED | GapAdvertisingData::LE_GENERAL_DISCOVERABLE); // BLE only, no classic BT
andresag 19:477567297aac 63 ble.gap().setAdvertisingType(GapAdvertisingParams::ADV_CONNECTABLE_UNDIRECTED); // advertising type
andresag 19:477567297aac 64 ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LOCAL_NAME, (uint8_t *)DEVICE_NAME, sizeof(DEVICE_NAME)); // add name
andresag 19:477567297aac 65 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 66 ble.gap().setAdvertisingInterval(100); // 100ms.
mbedAustin 2:e84c13abc479 67
andresag 22:406127954d1f 68 /* Add our custom service */
mbedAustin 13:62b1d32745ac 69 ble.addService(customService);
mbedAustin 2:e84c13abc479 70
andresag 22:406127954d1f 71 /* Start advertising */
andresag 19:477567297aac 72 ble.gap().startAdvertising();
andresag 22:406127954d1f 73 }
andresag 19:477567297aac 74
andresag 22:406127954d1f 75 /*
andresag 22:406127954d1f 76 * Main loop
andresag 22:406127954d1f 77 */
andresag 22:406127954d1f 78 int main(void)
andresag 22:406127954d1f 79 {
andresag 22:406127954d1f 80 /* initialize stuff */
andresag 22:406127954d1f 81 printf("\n\r********* Starting Main Loop *********\n\r");
andresag 22:406127954d1f 82
andresag 22:406127954d1f 83 BLE& ble = BLE::Instance(BLE::DEFAULT_INSTANCE);
andresag 22:406127954d1f 84 ble.init(bleInitComplete);
andresag 22:406127954d1f 85
andresag 22:406127954d1f 86 /* SpinWait for initialization to complete. This is necessary because the
andresag 22:406127954d1f 87 * BLE object is used in the main loop below. */
andresag 22:406127954d1f 88 while (ble.hasInitialized() == false) { /* spin loop */ }
andresag 22:406127954d1f 89
andresag 22:406127954d1f 90 /* Infinite loop waiting for BLE interrupt events */
mbedAustin 2:e84c13abc479 91 while (true) {
andresag 22:406127954d1f 92 ble.waitForEvent(); /* Save power */
mbedAustin 2:e84c13abc479 93 }
andresag 20:fcc752d401ec 94 }