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Using nRF51 as Line Beacon
Dependencies: BLE_API mbed nRF51822
Fork of BLE_GAP_Example by
main.cpp@8:5442739198ec, 2015-03-17 (annotated)
- Committer:
- mbedAustin
- Date:
- Tue Mar 17 19:45:19 2015 +0000
- Revision:
- 8:5442739198ec
- Parent:
- 7:f9a2fa5b1d43
- Child:
- 11:c9c0c4586c5f
Added comments and disconnection callback option
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
mbedAustin | 1:0692bee84264 | 1 | |
mbedAustin | 1:0692bee84264 | 2 | // Headers necessary for mbed and BLE device mode |
mbedAustin | 0:5375be4301ed | 3 | #include "mbed.h" |
mbedAustin | 0:5375be4301ed | 4 | #include "BLEDevice.h" |
mbedAustin | 0:5375be4301ed | 5 | |
mbedAustin | 1:0692bee84264 | 6 | // BLE object |
mbedAustin | 1:0692bee84264 | 7 | BLEDevice ble; |
mbedAustin | 0:5375be4301ed | 8 | |
mbedAustin | 8:5442739198ec | 9 | // Optional name, add for human read-ability |
mbedAustin | 8:5442739198ec | 10 | //const static char DEVICE_NAME[] = "ChangeMe!!"; // Optional: device name |
mbedAustin | 5:fff16d283dcf | 11 | |
mbedAustin | 1:0692bee84264 | 12 | /** |
mbedAustin | 8:5442739198ec | 13 | * You have up to 26 bytes of advertising data to use. |
mbedAustin | 8:5442739198ec | 14 | * Make up your own encoding for these 26bytes, send it across |
mbedAustin | 8:5442739198ec | 15 | * and decode it using the evothings app. |
mbedAustin | 1:0692bee84264 | 16 | */ |
mbedAustin | 8:5442739198ec | 17 | //const static uint8_t AdvData[] = {"ChangeThisData"}; // example of character data |
mbedAustin | 7:f9a2fa5b1d43 | 18 | const static uint8_t AdvData[] = {0x01,0x02,0x03,0x04,0x05}; // example of hex data |
mbedAustin | 1:0692bee84264 | 19 | |
mbedAustin | 8:5442739198ec | 20 | // Restart advertising when phone app disconnects |
mbedAustin | 8:5442739198ec | 21 | void disconnectionCallback(Gap::Handle_t handle, Gap::DisconnectionReason_t reason){ |
mbedAustin | 8:5442739198ec | 22 | ble.startAdvertising(); |
mbedAustin | 8:5442739198ec | 23 | } |
mbedAustin | 8:5442739198ec | 24 | |
mbedAustin | 1:0692bee84264 | 25 | // main program |
mbedAustin | 1:0692bee84264 | 26 | int main(void) |
mbedAustin | 0:5375be4301ed | 27 | { |
mbedAustin | 1:0692bee84264 | 28 | // Initialize BLE baselayer, always do this first! |
mbedAustin | 1:0692bee84264 | 29 | ble.init(); |
mbedAustin | 8:5442739198ec | 30 | // ble.onDisconnection(disconnectionCallback); // Optional: add callback for disconnection |
mbedAustin | 1:0692bee84264 | 31 | |
mbedAustin | 1:0692bee84264 | 32 | // Sacrifice 3B of 31B to Advertising Flags |
mbedAustin | 1:0692bee84264 | 33 | ble.accumulateAdvertisingPayload(GapAdvertisingData::BREDR_NOT_SUPPORTED | GapAdvertisingData::LE_GENERAL_DISCOVERABLE ); |
mbedAustin | 4:d602b1c3aef4 | 34 | ble.setAdvertisingType(GapAdvertisingParams::ADV_CONNECTABLE_UNDIRECTED); |
mbedAustin | 1:0692bee84264 | 35 | |
mbedAustin | 1:0692bee84264 | 36 | // Sacrifice 2B of 31B to AdvType overhead, rest goes to AdvData array you define |
mbedAustin | 1:0692bee84264 | 37 | ble.accumulateAdvertisingPayload(GapAdvertisingData::MANUFACTURER_SPECIFIC_DATA, AdvData, sizeof(AdvData)); |
mbedAustin | 5:fff16d283dcf | 38 | |
mbedAustin | 8:5442739198ec | 39 | // Optional: Add name to device |
mbedAustin | 5:fff16d283dcf | 40 | //ble.accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LOCAL_NAME, (uint8_t *)DEVICE_NAME, sizeof(DEVICE_NAME)); |
mbedAustin | 1:0692bee84264 | 41 | |
mbedAustin | 1:0692bee84264 | 42 | // Set advertising interval. Longer interval = longer battery life |
mbedAustin | 1:0692bee84264 | 43 | ble.setAdvertisingInterval(160); // 100ms; in multiples of 0.625ms. |
mbedAustin | 1:0692bee84264 | 44 | ble.startAdvertising(); |
mbedAustin | 1:0692bee84264 | 45 | |
mbedAustin | 1:0692bee84264 | 46 | // Infinite loop waiting for BLE events |
mbedAustin | 1:0692bee84264 | 47 | for (;;) { |
mbedAustin | 8:5442739198ec | 48 | ble.waitForEvent(); // this saves battery while waiting for callback events |
mbedAustin | 1:0692bee84264 | 49 | } |
mbedAustin | 1:0692bee84264 | 50 | } |