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An example driving an LED through a BLE service using ST BlueNRG native drivers
Dependencies: BLE_API X_NUCLEO_IDB0XA1 X_NUCLEO_IHM02A1 mbed
Fork of BLE_LED_IDB0XA1 by
Diff: main.cpp
- Revision:
- 0:aae2d6c2a9eb
- Child:
- 3:e0efdb741bd4
diff -r 000000000000 -r aae2d6c2a9eb main.cpp --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/main.cpp Thu Jan 07 16:31:02 2016 +0000 @@ -0,0 +1,99 @@ +/* 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.h" +#include "ble/BLE.h" +#include "LEDService.h" + +DigitalOut actuatedLED(LED1, 0); + +const static char DEVICE_NAME[] = "LED"; +static const uint16_t uuid16_list[] = {LEDService::LED_SERVICE_UUID}; + +LEDService *ledServicePtr; + +void disconnectionCallback(const Gap::DisconnectionCallbackParams_t *params) +{ + (void)params; + BLE::Instance().gap().startAdvertising(); +} + +/** + * 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 = true; + LEDService ledService(ble, initialValueForLEDCharacteristic); + ledServicePtr = &ledService; + + /* 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(); + + while (true) { + ble.waitForEvent(); + } +} + +int main(void) +{ + BLE &ble = BLE::Instance(); + + ble.init(bleInitComplete); +} +