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Dependencies: BLE_API mbed nRF51822
Fork of BLE_LED by
main.cpp
00001 /* mbed Microcontroller Library 00002 * Copyright (c) 2006-2013 ARM Limited 00003 * 00004 * Licensed under the Apache License, Version 2.0 (the "License"); 00005 * you may not use this file except in compliance with the License. 00006 * You may obtain a copy of the License at 00007 * 00008 * http://www.apache.org/licenses/LICENSE-2.0 00009 * 00010 * Unless required by applicable law or agreed to in writing, software 00011 * distributed under the License is distributed on an "AS IS" BASIS, 00012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 00013 * See the License for the specific language governing permissions and 00014 * limitations under the License. 00015 */ 00016 00017 #include "mbed.h" 00018 #include "ble/BLE.h" 00019 #include "LEDService.h" 00020 00021 DigitalOut alivenessLED(LED1, 0); 00022 DigitalOut actuatedLED(LED2, 0); 00023 00024 const static char DEVICE_NAME[] = "LED"; 00025 static const uint16_t uuid16_list[] = {LEDService::LED_SERVICE_UUID}; 00026 00027 LEDService *ledServicePtr; 00028 00029 Ticker ticker; 00030 00031 void disconnectionCallback(const Gap::DisconnectionCallbackParams_t *params) 00032 { 00033 BLE::Instance().gap().startAdvertising(); 00034 } 00035 00036 void periodicCallback(void) 00037 { 00038 alivenessLED = !alivenessLED; /* Do blinky on LED1 to indicate system aliveness. */ 00039 } 00040 00041 /** 00042 * This callback allows the LEDService to receive updates to the ledState Characteristic. 00043 * 00044 * @param[in] params 00045 * Information about the characterisitc being updated. 00046 */ 00047 void onDataWrittenCallback(const GattWriteCallbackParams *params) { 00048 if ((params->handle == ledServicePtr->getValueHandle()) && (params->len == 1)) { 00049 actuatedLED = *(params->data); 00050 } 00051 } 00052 00053 /** 00054 * This function is called when the ble initialization process has failed 00055 */ 00056 void onBleInitError(BLE &ble, ble_error_t error) 00057 { 00058 /* Initialization error handling should go here */ 00059 } 00060 00061 /** 00062 * Callback triggered when the ble initialization process has finished 00063 */ 00064 void bleInitComplete(BLE::InitializationCompleteCallbackContext *params) 00065 { 00066 BLE& ble = params->ble; 00067 ble_error_t error = params->error; 00068 00069 if (error != BLE_ERROR_NONE) { 00070 /* In case of error, forward the error handling to onBleInitError */ 00071 onBleInitError(ble, error); 00072 return; 00073 } 00074 00075 /* Ensure that it is the default instance of BLE */ 00076 if(ble.getInstanceID() != BLE::DEFAULT_INSTANCE) { 00077 return; 00078 } 00079 00080 ble.gap().onDisconnection(disconnectionCallback); 00081 ble.gattServer().onDataWritten(onDataWrittenCallback); 00082 00083 bool initialValueForLEDCharacteristic = false; 00084 ledServicePtr = new LEDService(ble, initialValueForLEDCharacteristic); 00085 00086 /* setup advertising */ 00087 ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::BREDR_NOT_SUPPORTED | GapAdvertisingData::LE_GENERAL_DISCOVERABLE); 00088 ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LIST_16BIT_SERVICE_IDS, (uint8_t *)uuid16_list, sizeof(uuid16_list)); 00089 ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LOCAL_NAME, (uint8_t *)DEVICE_NAME, sizeof(DEVICE_NAME)); 00090 ble.gap().setAdvertisingType(GapAdvertisingParams::ADV_CONNECTABLE_UNDIRECTED); 00091 ble.gap().setAdvertisingInterval(1000); /* 1000ms. */ 00092 ble.gap().startAdvertising(); 00093 } 00094 00095 int main(void) 00096 { 00097 ticker.attach(periodicCallback, 1); /* Blink LED every second */ 00098 00099 BLE &ble = BLE::Instance(); 00100 ble.init(bleInitComplete); 00101 00102 /* SpinWait for initialization to complete. This is necessary because the 00103 * BLE object is used in the main loop below. */ 00104 while (ble.hasInitialized() == false) { /* spin loop */ } 00105 00106 while (true) { 00107 ble.waitForEvent(); 00108 } 00109 }
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