Minimal usage example of BLE API
Dependencies: BLE_API mbed nRF51822
Just a very simple and minimal BluetoothLE API 'Hello World' example.
main.cpp@3:a73aba7d194e, 2016-09-23 (annotated)
- Committer:
- waynek
- Date:
- Fri Sep 23 14:01:59 2016 +0000
- Revision:
- 3:a73aba7d194e
- Parent:
- 2:4f0d8bf09690
Updated to use latest libraries
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
waynek | 0:a89b73f690c1 | 1 | #include "mbed.h" |
waynek | 2:4f0d8bf09690 | 2 | #include "ble/BLE.h" |
waynek | 0:a89b73f690c1 | 3 | |
waynek | 2:4f0d8bf09690 | 4 | // DFUService is already included & automatically advertised by the mbed lib dependancies |
waynek | 0:a89b73f690c1 | 5 | |
waynek | 0:a89b73f690c1 | 6 | const static char DEVICE_NAME[] = "HelloBlue"; |
waynek | 0:a89b73f690c1 | 7 | |
waynek | 0:a89b73f690c1 | 8 | BLEDevice ble; |
waynek | 0:a89b73f690c1 | 9 | |
waynek | 2:4f0d8bf09690 | 10 | void disconnectionCallback(const Gap::DisconnectionCallbackParams_t *params) |
waynek | 2:4f0d8bf09690 | 11 | { |
waynek | 2:4f0d8bf09690 | 12 | BLE::Instance(BLE::DEFAULT_INSTANCE).gap().startAdvertising(); // restart advertising |
waynek | 2:4f0d8bf09690 | 13 | } |
waynek | 2:4f0d8bf09690 | 14 | |
waynek | 2:4f0d8bf09690 | 15 | void bleInitComplete(BLE::InitializationCompleteCallbackContext *params) |
waynek | 0:a89b73f690c1 | 16 | { |
waynek | 2:4f0d8bf09690 | 17 | BLE &ble = params->ble; |
waynek | 2:4f0d8bf09690 | 18 | ble_error_t error = params->error; |
waynek | 2:4f0d8bf09690 | 19 | |
waynek | 2:4f0d8bf09690 | 20 | if (error != BLE_ERROR_NONE) { |
waynek | 2:4f0d8bf09690 | 21 | return; |
waynek | 2:4f0d8bf09690 | 22 | } |
waynek | 2:4f0d8bf09690 | 23 | |
waynek | 2:4f0d8bf09690 | 24 | ble.gap().onDisconnection(disconnectionCallback); |
waynek | 2:4f0d8bf09690 | 25 | |
waynek | 2:4f0d8bf09690 | 26 | /* Setup advertising. */ |
waynek | 2:4f0d8bf09690 | 27 | ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::BREDR_NOT_SUPPORTED | GapAdvertisingData::LE_GENERAL_DISCOVERABLE); |
waynek | 2:4f0d8bf09690 | 28 | ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LOCAL_NAME, (uint8_t *)DEVICE_NAME, sizeof(DEVICE_NAME)); |
waynek | 2:4f0d8bf09690 | 29 | ble.gap().setAdvertisingType(GapAdvertisingParams::ADV_CONNECTABLE_UNDIRECTED); |
waynek | 2:4f0d8bf09690 | 30 | ble.gap().setAdvertisingInterval(1000); /* ms */ |
waynek | 2:4f0d8bf09690 | 31 | ble.gap().startAdvertising(); |
waynek | 0:a89b73f690c1 | 32 | } |
waynek | 0:a89b73f690c1 | 33 | |
waynek | 2:4f0d8bf09690 | 34 | |
waynek | 0:a89b73f690c1 | 35 | int main(void) |
waynek | 0:a89b73f690c1 | 36 | { |
waynek | 2:4f0d8bf09690 | 37 | BLE& ble = BLE::Instance(BLE::DEFAULT_INSTANCE); |
waynek | 2:4f0d8bf09690 | 38 | ble.init(bleInitComplete); |
waynek | 0:a89b73f690c1 | 39 | |
waynek | 2:4f0d8bf09690 | 40 | /* SpinWait for initialization to complete. This is necessary because the |
waynek | 2:4f0d8bf09690 | 41 | * BLE object is used in the main loop below. */ |
waynek | 2:4f0d8bf09690 | 42 | while (ble.hasInitialized() == false) { /* spin loop */ } |
waynek | 2:4f0d8bf09690 | 43 | |
waynek | 2:4f0d8bf09690 | 44 | while (1) |
waynek | 2:4f0d8bf09690 | 45 | { |
waynek | 2:4f0d8bf09690 | 46 | // to see if a Central device is currently connected you can call: ble.getGapState().connected |
waynek | 2:4f0d8bf09690 | 47 | ble.waitForEvent(); // low power wait for event |
waynek | 0:a89b73f690c1 | 48 | } |
waynek | 0:a89b73f690c1 | 49 | } |
waynek | 0:a89b73f690c1 | 50 |