Jan Jongboom
/
ble-devicelink-example
Example program for mbed Cloud Bluetooth Devicelink
source/main.cpp
- Committer:
- Jan Jongboom
- Date:
- 2017-05-01
- Revision:
- 0:cfbdc6a35374
File content as of revision 0:cfbdc6a35374:
/* mbed Microcontroller Library * Copyright (c) 2006-2013 ARM Limited * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ #include <events/mbed_events.h> #include <mbed.h> #include "ble/BLE.h" #include "ble/Gap.h" #include "ButtonService.h" #include "GroveLedService.h" #include "ChainableLED.h" DigitalOut led1(LED1, 1); InterruptIn button(BLE_BUTTON_PIN_NAME); ChainableLED grove_led(D2, D3, 1); static EventQueue eventQueue( /* event count */ 10 * /* event size */ 32 ); const static char DEVICE_NAME[] = "DeviceLinkTest"; static const uint16_t uuid16_list[] = {ButtonService::BUTTON_SERVICE_UUID, GroveLEDService::LED_SERVICE_UUID}; ButtonService *buttonServicePtr; GroveLEDService *ledServicePtr; static uint8_t button_count = 0; void buttonPressedCallback(void) { eventQueue.call(Callback<void(uint8_t)>(buttonServicePtr, &ButtonService::updateButtonState), ++button_count); } void disconnectionCallback(const Gap::DisconnectionCallbackParams_t *params) { BLE::Instance().gap().startAdvertising(); // restart advertising } void blinkCallback(void) { led1 = !led1; /* Do blinky on LED1 to indicate system aliveness. */ } void onBleInitError(BLE &ble, ble_error_t error) { /* Initialization error handling should go here */ } /** * This callback allows the LEDService to receive updates to the ledState Characteristic. * * @param[in] params * Information about the characteristic being updated. */ void onDataWrittenCallback(const GattWriteCallbackParams *params) { if ((params->handle == ledServicePtr->getValueHandle()) && (params->len >= 3)) { grove_led.setColorRGB(0, params->data[0], params->data[1], params->data[2]); } } void bleInitComplete(BLE::InitializationCompleteCallbackContext *params) { BLE& ble = params->ble; ble_error_t error = params->error; if (error != BLE_ERROR_NONE) { /* In case of error, forward the error handling to onBleInitError */ onBleInitError(ble, error); return; } /* Ensure that it is the default instance of BLE */ if(ble.getInstanceID() != BLE::DEFAULT_INSTANCE) { return; } ble.gap().onDisconnection(disconnectionCallback); ble.gattServer().onDataWritten(onDataWrittenCallback); button.fall(buttonPressedCallback); buttonServicePtr = new ButtonService(ble, 0); ledServicePtr = new GroveLEDService(ble, 0xff0000); /* setup advertising */ ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::BREDR_NOT_SUPPORTED | GapAdvertisingData::LE_GENERAL_DISCOVERABLE); ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LIST_16BIT_SERVICE_IDS, (uint8_t *)uuid16_list, sizeof(uuid16_list)); ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LOCAL_NAME, (uint8_t *)DEVICE_NAME, sizeof(DEVICE_NAME)); ble.gap().setAdvertisingType(GapAdvertisingParams::ADV_CONNECTABLE_UNDIRECTED); ble.gap().setAdvertisingInterval(1000); /* 1000ms. */ ble.gap().startAdvertising(); } void scheduleBleEventsProcessing(BLE::OnEventsToProcessCallbackContext* context) { BLE &ble = BLE::Instance(); eventQueue.call(Callback<void()>(&ble, &BLE::processEvents)); } int main() { grove_led.setColorRGB(0, 0xff, 0, 0); // red eventQueue.call_every(500, blinkCallback); BLE &ble = BLE::Instance(); ble.onEventsToProcess(scheduleBleEventsProcessing); ble.init(bleInitComplete); eventQueue.dispatch_forever(); return 0; }