Luca Mottola
/
IOTAtelier1819-BLELed
BLE example of a write characteristic to control a Led
Diff: source/main.cpp
- Revision:
- 2:864ddfb70a9c
- Parent:
- 1:b1f4696c0018
- Child:
- 11:7404978b24e7
--- a/source/main.cpp Thu Jul 28 23:13:57 2016 +0100 +++ b/source/main.cpp Thu Jul 28 23:14:48 2016 +0100 @@ -1,117 +1,117 @@ -/* 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 <mbed-events/events.h> -#include <mbed.h> -#include "ble/BLE.h" -#include "LEDService.h" - -DigitalOut alivenessLED(LED1, 0); -DigitalOut actuatedLED(LED2, 0); - -const static char DEVICE_NAME[] = "LED"; -static const uint16_t uuid16_list[] = {LEDService::LED_SERVICE_UUID}; - -static EventQueue eventQueue( - /* event count */ 10 * /* event size */ 32 -); - -LEDService *ledServicePtr; - -void disconnectionCallback(const Gap::DisconnectionCallbackParams_t *params) -{ - (void) params; - BLE::Instance().gap().startAdvertising(); -} - -void blinkCallback(void) -{ - alivenessLED = !alivenessLED; /* Do blinky on LED1 to indicate system aliveness. */ -} - -/** - * This callback allows the LEDService to receive updates to the ledState Characteristic. - * - * @param[in] params - * Information about the characterisitc being updated. - */ -void onDataWrittenCallback(const GattWriteCallbackParams *params) { - if ((params->handle == ledServicePtr->getValueHandle()) && (params->len == 1)) { - actuatedLED = *(params->data); - } -} - -/** - * This function is called when the ble initialization process has failled - */ -void onBleInitError(BLE &ble, ble_error_t error) -{ - /* Initialization error handling should go here */ -} - -/** - * Callback triggered when the ble initialization process has finished - */ -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); - - bool initialValueForLEDCharacteristic = false; - ledServicePtr = new LEDService(ble, initialValueForLEDCharacteristic); - - /* 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.post(Callback<void()>(&ble, &BLE::processEvents)); -} - -int main() -{ - eventQueue.post_every(500, blinkCallback); - - BLE &ble = BLE::Instance(); - ble.onEventsToProcess(scheduleBleEventsProcessing); - ble.init(bleInitComplete); - - while (true) { - eventQueue.dispatch(); - } - - return 0; -} +/* 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 <mbed-events/events.h> +#include <mbed.h> +#include "ble/BLE.h" +#include "LEDService.h" + +DigitalOut alivenessLED(LED1, 0); +DigitalOut actuatedLED(LED2, 0); + +const static char DEVICE_NAME[] = "LED"; +static const uint16_t uuid16_list[] = {LEDService::LED_SERVICE_UUID}; + +static EventQueue eventQueue( + /* event count */ 10 * /* event size */ 32 +); + +LEDService *ledServicePtr; + +void disconnectionCallback(const Gap::DisconnectionCallbackParams_t *params) +{ + (void) params; + BLE::Instance().gap().startAdvertising(); +} + +void blinkCallback(void) +{ + alivenessLED = !alivenessLED; /* Do blinky on LED1 to indicate system aliveness. */ +} + +/** + * This callback allows the LEDService to receive updates to the ledState Characteristic. + * + * @param[in] params + * Information about the characterisitc being updated. + */ +void onDataWrittenCallback(const GattWriteCallbackParams *params) { + if ((params->handle == ledServicePtr->getValueHandle()) && (params->len == 1)) { + actuatedLED = *(params->data); + } +} + +/** + * This function is called when the ble initialization process has failled + */ +void onBleInitError(BLE &ble, ble_error_t error) +{ + /* Initialization error handling should go here */ +} + +/** + * Callback triggered when the ble initialization process has finished + */ +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); + + bool initialValueForLEDCharacteristic = false; + ledServicePtr = new LEDService(ble, initialValueForLEDCharacteristic); + + /* 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.post(Callback<void()>(&ble, &BLE::processEvents)); +} + +int main() +{ + eventQueue.post_every(500, blinkCallback); + + BLE &ble = BLE::Instance(); + ble.onEventsToProcess(scheduleBleEventsProcessing); + ble.init(bleInitComplete); + + while (true) { + eventQueue.dispatch(); + } + + return 0; +}