mbed First Project Code
Dependencies: BLE_API mbed nRF51822
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 00020 #include "ble/services/UARTService.h" 00021 00022 #define NEED_CONSOLE_OUTPUT 0 /* Set this if you need debug messages on the console; 00023 * it will have an impact on code-size and power consumption. */ 00024 00025 #if NEED_CONSOLE_OUTPUT 00026 #define DEBUG(...) { printf(__VA_ARGS__); } 00027 #else 00028 #define DEBUG(...) /* nothing */ 00029 #endif /* #if NEED_CONSOLE_OUTPUT */ 00030 00031 BLEDevice ble; 00032 DigitalOut led1(LED1); 00033 AnalogIn bat(p20); 00034 00035 UARTService *uartServicePtr; 00036 00037 void disconnectionCallback(const Gap::DisconnectionCallbackParams_t *params) 00038 { 00039 DEBUG("Disconnected!\n\r"); 00040 DEBUG("Restarting the advertising process\n\r"); 00041 ble.startAdvertising(); 00042 } 00043 00044 void onDataWritten(const GattWriteCallbackParams *params) 00045 { 00046 if ((uartServicePtr != NULL) && (params->handle == uartServicePtr->getTXCharacteristicHandle())) { 00047 uint16_t bytesRead = params->len; 00048 DEBUG("received %u bytes\n\r", bytesRead); 00049 ble.updateCharacteristicValue(uartServicePtr->getRXCharacteristicHandle(), params->data, bytesRead); 00050 } 00051 } 00052 00053 void periodicCallback(void) 00054 { 00055 led1 = !led1; 00056 } 00057 00058 int main(void) 00059 { 00060 led1 = 1; 00061 Ticker ticker; 00062 ticker.attach(periodicCallback, 1); 00063 00064 DEBUG("Initialising the nRF51822\n\r"); 00065 ble.init(); 00066 ble.onDisconnection(disconnectionCallback); 00067 ble.onDataWritten(onDataWritten); 00068 00069 /* setup advertising */ 00070 ble.accumulateAdvertisingPayload(GapAdvertisingData::BREDR_NOT_SUPPORTED); 00071 ble.setAdvertisingType(GapAdvertisingParams::ADV_CONNECTABLE_UNDIRECTED); 00072 ble.accumulateAdvertisingPayload(GapAdvertisingData::SHORTENED_LOCAL_NAME, 00073 (const uint8_t *)"BLE UART", sizeof("BLE UART") - 1); 00074 ble.accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LIST_128BIT_SERVICE_IDS, 00075 (const uint8_t *)UARTServiceUUID_reversed, sizeof(UARTServiceUUID_reversed)); 00076 00077 ble.setAdvertisingInterval(1000); /* 1000ms; in multiples of 0.625ms. */ 00078 ble.startAdvertising(); 00079 00080 UARTService uartService(ble); 00081 uartServicePtr = &uartService; 00082 00083 if (bat.read() != 0) 00084 { 00085 printf("%f", bat.read()); 00086 } 00087 00088 while (true) { 00089 ble.waitForEvent(); 00090 } 00091 }
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