for camera
Dependencies: BLE_API mbed nRF51822
Fork of BLE_GATT_Example by
main.cpp
- Committer:
- andreydung
- Date:
- 2017-06-06
- Revision:
- 24:64e7d23021ba
- Parent:
- 23:8cd0bcd06533
- Child:
- 25:56d5b129dfd6
File content as of revision 24:64e7d23021ba:
#include "mbed.h" #include "ble/BLE.h" DigitalOut led(LED1, 1); uint16_t customServiceUUID = 0xA000; uint16_t readCharUUID = 0xA001; uint16_t writeCharUUID = 0xA002; #define LEN_SEQUENCE 5 #define NUM_CASES const uint8_t lookUpTable[NUM_CASES][LEN_SEQUENCE] = { {1,0,0,0,1}, {1,0,0,1,1}, {1,1,0,0,1}, {1,0,1,0,1}, {1,1,0,1,1}, {1,1,0,1,1}}; const static char DEVICE_NAME[] = "timesync1"; // change this static const uint16_t uuid16_list[] = {0xFFFF}; //Custom UUID, FFFF is reserved for development /* Set Up custom Characteristics */ static uint8_t readValue[10] = {0}; ReadOnlyArrayGattCharacteristic<uint8_t, sizeof(readValue)> readChar(readCharUUID, readValue); static uint8_t writeValue[10] = {0}; WriteOnlyArrayGattCharacteristic<uint8_t, sizeof(writeValue)> writeChar(writeCharUUID, writeValue); /* Set up custom service */ GattCharacteristic *characteristics[] = {&readChar, &writeChar}; GattService customService(customServiceUUID, characteristics, sizeof(characteristics) / sizeof(GattCharacteristic *)); /* * Restart advertising when phone app disconnects */ void disconnectionCallback(const Gap::DisconnectionCallbackParams_t *) { BLE::Instance(BLE::DEFAULT_INSTANCE).gap().startAdvertising(); } /* * Handle writes to writeCharacteristic */ void writeCharCallback(const GattWriteCallbackParams *params) { /* Check to see what characteristic was written, by handle */ if(params->handle == writeChar.getValueHandle()) { /* toggle LED if only 1 byte is written */ // if(params->len == 1) { // led = params->data[0]; // (params->data[0] == 0x00) ? printf("led on\n\r") : printf("led off\n\r"); // print led toggle // } // /* Print the data if more than 1 byte is written */ // else { // printf("Data received: length = %d, data = 0x",params->len); // for(int x=0; x < params->len; x++) { // printf("%x", params->data[x]); // } // printf("\n\r"); // } // lookup table if (params->len == 1) { int instruction = params->data[0]; if ((instruction >= 0) && (instruction < NUM_CASES)) { for (int i = 0; i < LEN_SEQUENCE; i++) { led = lookUpTable[instruction][i]; delay(500); } } } /* Update the readChar with the value of writeChar */ BLE::Instance(BLE::DEFAULT_INSTANCE).gattServer().write(readChar.getValueHandle(), params->data, params->len); } } /* * Initialization callback */ void bleInitComplete(BLE::InitializationCompleteCallbackContext *params) { BLE &ble = params->ble; ble_error_t error = params->error; if (error != BLE_ERROR_NONE) { return; } ble.gap().onDisconnection(disconnectionCallback); ble.gattServer().onDataWritten(writeCharCallback); /* Setup advertising */ ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::BREDR_NOT_SUPPORTED | GapAdvertisingData::LE_GENERAL_DISCOVERABLE); // BLE only, no classic BT ble.gap().setAdvertisingType(GapAdvertisingParams::ADV_CONNECTABLE_UNDIRECTED); // advertising type ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LOCAL_NAME, (uint8_t *)DEVICE_NAME, sizeof(DEVICE_NAME)); // add name ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LIST_16BIT_SERVICE_IDS, (uint8_t *)uuid16_list, sizeof(uuid16_list)); // UUID's broadcast in advertising packet ble.gap().setAdvertisingInterval(100); // 100ms. /* Add our custom service */ ble.addService(customService); /* Start advertising */ ble.gap().startAdvertising(); } /* * Main loop */ int main(void) { /* initialize stuff */ printf("\n\r********* Starting Main Loop *********\n\r"); BLE& ble = BLE::Instance(BLE::DEFAULT_INSTANCE); ble.init(bleInitComplete); /* SpinWait for initialization to complete. This is necessary because the * BLE object is used in the main loop below. */ while (ble.hasInitialized() == false) { /* spin loop */ } /* Infinite loop waiting for BLE interrupt events */ while (true) { ble.waitForEvent(); /* Save power */ } }