An example of creating and updating a simple GATT Service using the BLE_API
Dependencies: BLE_API X_NUCLEO_IDB0XA1 mbed
Diff: main.cpp
- Revision:
- 0:dbff48b4070b
- Child:
- 1:c81543a36d05
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/main.cpp Tue Sep 22 19:01:03 2015 +0000 @@ -0,0 +1,68 @@ +/* mbed Microcontroller Library + * Copyright (c) 2006-2014 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.h" +#include "BatteryService.h" + +BLE ble; + +DigitalOut led1(LED1, 1); +Ticker t; + +void disconnectionCallback(Gap::Handle_t handle, Gap::DisconnectionReason_t reason) +{ + printf("Disconnected handle %u!\n\r", handle); + printf("Restarting the advertising process\n\r"); + ble.startAdvertising(); +} + +void blink(void) +{ + led1 = !led1; +} + +int main(void) +{ + uint8_t batteryLevel = 50; + t.attach(blink, 1.0f); + + printf("Initialising\n\r"); + + ble.init(); + ble.onDisconnection(disconnectionCallback); + + BatteryService batteryService(ble, batteryLevel); + + /* setup advertising */ + ble.accumulateAdvertisingPayload(GapAdvertisingData::BREDR_NOT_SUPPORTED); + ble.setAdvertisingType(GapAdvertisingParams::ADV_CONNECTABLE_UNDIRECTED); + ble.setAdvertisingInterval(1000); /* 1000ms; in multiples of 0.625ms. */ + ble.startAdvertising(); + + while (true) { + ble.waitForEvent(); // this will return upon any system event (such as an interrupt or a ticker wakeup) + + // the magic battery processing + batteryLevel++; + if (batteryLevel > 100) { + batteryLevel = 20; + } + + batteryService.updateBatteryLevel(batteryLevel); + } +} + \ No newline at end of file