ZO Hong / Mbed OS mbed-os_GAP_LineBeacon_nRF52

Using nRF52 as Line Beacon

Dependencies:   mbed-os

Fork of BLE_GAP_Example by Bluetooth Low Energy

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?

UserRevisionLine numberNew 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 }