Dissertation project, looking at BLE communication in cars. This project is BLE peripheral acting as car indicator stalk
Dependencies: BLE_API mbed nRF51822
Fork of BLE_GATT_test1 by
main.cpp
- Committer:
- alexanderlea
- Date:
- 2015-03-27
- Revision:
- 12:f5b12e8b6043
- Parent:
- 11:35b63ab4c76c
- Child:
- 13:a578c382cb7d
File content as of revision 12:f5b12e8b6043:
#include "mbed.h" #include "BLEDevice.h" #include "BroadcasterService.h" #include "ErrorService.h" #include <string> using namespace std; BLEDevice ble; DigitalOut led1(LED1); InterruptIn indicatorIn(p5); Serial pc(USBTX, USBRX); /*Variable Declarations*/ const static char DEVICE_NAME[] = "BLE_Broadcaster"; static volatile bool indicatorOn = false; static volatile bool indicatorSent = false; uint8_t cmdOn[8] = { 0x4d,0x32,0x81,0xc0,0x4d,0x4d,0x4d,0x4d }; uint8_t cmdOff[8] = { 0x4d,0x32,0x81,0xc0,0x32,0x32,0x32,0x32 }; /** Callback function for ticker */ void blink(void) { led1 = !led1; /* Do blinky on LED1 while we're waiting for BLE events */ //pc.printf("Tick\r\n"); } /** Callback routine is interrupt activated by a debounced button hit*/ void buttonPressed(void) { indicatorOn = true; indicatorSent = false; pc.printf("Switch on. Is now %d \r\n", indicatorOn); } /** Callback function for button (indicatorIn) being released */ void buttonReleased(void) { indicatorOn = false; indicatorSent = false; pc.printf("Switch off. Is now %d \r\n", indicatorOn); } /** Callback function for BLE disconnection */ void disconnectionCallback(Gap::Handle_t handle, Gap::DisconnectionReason_t reason) { pc.printf("Disconnected! - start advertising. Handle:%d, Reason:0x%02x\r\n", handle, reason); ble.startAdvertising(); } /** Callback function for BLE connection */ void connectionCallback(Gap::Handle_t handle, Gap::addr_type_t peerAddrType, const Gap::address_t peerAddr, const Gap::ConnectionParams_t *parms) { pc.printf("Connected! - stop advertising. Handle:%d, eType:%d, Add:%u.\r\n", handle, peerAddrType, peerAddr); ble.stopAdvertising(); } int main(void) { /*Setup switch input*/ indicatorIn.mode(PullUp); // Delay for initial pullup to take effect wait(.01); // Setup Interrupt callback function for a button hit indicatorIn.fall(&buttonPressed); indicatorIn.rise(&buttonReleased); /*Setup Blinky*/ led1 = 1; Ticker t; t.attach(&blink, 1); /*Setup BLE*/ ble.init(); ble.onDisconnection(disconnectionCallback); ble.onConnection(connectionCallback); //create services BroadcasterService broadcasterService(ble); ErrorService errorService(ble); /* **BREDR_NOT_SUPPORTED = BLE only **LE_GENERAL_DISCOVERABLE = Device is discoverable at any moment (no time out) **ADV_CONNECTABLE_UNDIRECTED = Any central device can connect */ ble.accumulateAdvertisingPayload(GapAdvertisingData::BREDR_NOT_SUPPORTED | GapAdvertisingData::LE_GENERAL_DISCOVERABLE); // ble.accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LIST_16BIT_SERVICE_IDS, (uint8_t *)uuid16_list, sizeof(uuid16_list)); ble.accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LOCAL_NAME, (uint8_t *)DEVICE_NAME, sizeof(DEVICE_NAME)); ble.setAdvertisingType(GapAdvertisingParams::ADV_CONNECTABLE_UNDIRECTED); ble.setAdvertisingInterval(160); /* 1s; in multiples of 0.625ms. */ //was 1600 ble.startAdvertising(); pc.printf("Advertising node %s\n\r", DEVICE_NAME); //loop forever while(true) { ble.waitForEvent(); // this should return upon any system event (such as an interrupt or a ticker wakeup) if(indicatorOn) { //if button is pressed if(!indicatorSent) { //should only fire the first time! pc.printf("Command on = %u\r\n", cmdOn); broadcasterService.sendCommand(cmdOn); indicatorSent = true; //set true to stop multiple firing } } else { if(!indicatorSent) { pc.printf("Command off = %u\r\n", cmdOff); broadcasterService.sendCommand(cmdOff); indicatorSent = true; //set true to stop multiple firing } } } }