An example of creating and updating a simple GATT Service using the BLE_API
Dependencies: BLE_API X_NUCLEO_IDB0XA1 mbed
main.cpp@10:49c15c461749, 2016-09-16 (annotated)
- Committer:
- apalmieri
- Date:
- Fri Sep 16 10:41:37 2016 +0000
- Revision:
- 10:49c15c461749
- Parent:
- 7:15e13a8f1193
Sync w/ mbed (rev125) BLE_API (rev1208) and X_NUCLEO_IDB0XA1 (rev307) libs
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
screamer | 0:dbff48b4070b | 1 | /* mbed Microcontroller Library |
screamer | 0:dbff48b4070b | 2 | * Copyright (c) 2006-2014 ARM Limited |
screamer | 0:dbff48b4070b | 3 | * |
screamer | 0:dbff48b4070b | 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
screamer | 0:dbff48b4070b | 5 | * you may not use this file except in compliance with the License. |
screamer | 0:dbff48b4070b | 6 | * You may obtain a copy of the License at |
screamer | 0:dbff48b4070b | 7 | * |
screamer | 0:dbff48b4070b | 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
screamer | 0:dbff48b4070b | 9 | * |
screamer | 0:dbff48b4070b | 10 | * Unless required by applicable law or agreed to in writing, software |
screamer | 0:dbff48b4070b | 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
screamer | 0:dbff48b4070b | 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
screamer | 0:dbff48b4070b | 13 | * See the License for the specific language governing permissions and |
screamer | 0:dbff48b4070b | 14 | * limitations under the License. |
screamer | 0:dbff48b4070b | 15 | */ |
screamer | 0:dbff48b4070b | 16 | |
screamer | 0:dbff48b4070b | 17 | #include "mbed.h" |
screamer | 0:dbff48b4070b | 18 | #include "BLE.h" |
screamer | 0:dbff48b4070b | 19 | #include "BatteryService.h" |
screamer | 0:dbff48b4070b | 20 | |
screamer | 0:dbff48b4070b | 21 | DigitalOut led1(LED1, 1); |
apalmieri | 1:c81543a36d05 | 22 | |
apalmieri | 1:c81543a36d05 | 23 | const static char DEVICE_NAME[] = "BATTERY"; |
apalmieri | 1:c81543a36d05 | 24 | static const uint16_t uuid16_list[] = {GattService::UUID_BATTERY_SERVICE}; |
apalmieri | 1:c81543a36d05 | 25 | |
apalmieri | 1:c81543a36d05 | 26 | static volatile bool triggerSensorPolling = false; |
apalmieri | 1:c81543a36d05 | 27 | |
apalmieri | 1:c81543a36d05 | 28 | void disconnectionCallback(const Gap::DisconnectionCallbackParams_t *params) |
screamer | 0:dbff48b4070b | 29 | { |
apalmieri | 7:15e13a8f1193 | 30 | (void)params; |
apalmieri | 7:15e13a8f1193 | 31 | BLE::Instance().gap().startAdvertising(); // restart advertising |
screamer | 0:dbff48b4070b | 32 | } |
screamer | 0:dbff48b4070b | 33 | |
screamer | 0:dbff48b4070b | 34 | void blink(void) |
screamer | 0:dbff48b4070b | 35 | { |
screamer | 0:dbff48b4070b | 36 | led1 = !led1; |
apalmieri | 1:c81543a36d05 | 37 | triggerSensorPolling = true; |
screamer | 0:dbff48b4070b | 38 | } |
apalmieri | 7:15e13a8f1193 | 39 | |
apalmieri | 7:15e13a8f1193 | 40 | void onBleInitError(BLE &ble, ble_error_t error) |
apalmieri | 7:15e13a8f1193 | 41 | { |
apalmieri | 7:15e13a8f1193 | 42 | (void)ble; |
apalmieri | 7:15e13a8f1193 | 43 | (void)error; |
apalmieri | 7:15e13a8f1193 | 44 | /* Initialization error handling should go here */ |
apalmieri | 7:15e13a8f1193 | 45 | } |
apalmieri | 7:15e13a8f1193 | 46 | |
apalmieri | 7:15e13a8f1193 | 47 | void bleInitComplete(BLE::InitializationCompleteCallbackContext *params) |
screamer | 0:dbff48b4070b | 48 | { |
apalmieri | 7:15e13a8f1193 | 49 | BLE& ble = params->ble; |
apalmieri | 7:15e13a8f1193 | 50 | ble_error_t error = params->error; |
apalmieri | 7:15e13a8f1193 | 51 | |
apalmieri | 7:15e13a8f1193 | 52 | if (error != BLE_ERROR_NONE) { |
apalmieri | 7:15e13a8f1193 | 53 | onBleInitError(ble, error); |
apalmieri | 7:15e13a8f1193 | 54 | return; |
apalmieri | 7:15e13a8f1193 | 55 | } |
apalmieri | 7:15e13a8f1193 | 56 | |
apalmieri | 7:15e13a8f1193 | 57 | if (ble.getInstanceID() != BLE::DEFAULT_INSTANCE) { |
apalmieri | 7:15e13a8f1193 | 58 | return; |
apalmieri | 7:15e13a8f1193 | 59 | } |
apalmieri | 7:15e13a8f1193 | 60 | |
apalmieri | 7:15e13a8f1193 | 61 | ble.gap().onDisconnection(disconnectionCallback); |
apalmieri | 7:15e13a8f1193 | 62 | |
screamer | 0:dbff48b4070b | 63 | uint8_t batteryLevel = 50; |
screamer | 0:dbff48b4070b | 64 | BatteryService batteryService(ble, batteryLevel); |
screamer | 0:dbff48b4070b | 65 | |
screamer | 0:dbff48b4070b | 66 | /* setup advertising */ |
screamer | 0:dbff48b4070b | 67 | ble.accumulateAdvertisingPayload(GapAdvertisingData::BREDR_NOT_SUPPORTED); |
apalmieri | 1:c81543a36d05 | 68 | ble.accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LIST_16BIT_SERVICE_IDS, (uint8_t *) uuid16_list, sizeof(uuid16_list)); |
apalmieri | 1:c81543a36d05 | 69 | ble.accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LOCAL_NAME, (uint8_t *) DEVICE_NAME, sizeof(DEVICE_NAME)); |
screamer | 0:dbff48b4070b | 70 | ble.setAdvertisingType(GapAdvertisingParams::ADV_CONNECTABLE_UNDIRECTED); |
screamer | 0:dbff48b4070b | 71 | ble.setAdvertisingInterval(1000); /* 1000ms; in multiples of 0.625ms. */ |
screamer | 0:dbff48b4070b | 72 | ble.startAdvertising(); |
screamer | 0:dbff48b4070b | 73 | |
screamer | 0:dbff48b4070b | 74 | while (true) { |
apalmieri | 1:c81543a36d05 | 75 | // check for trigger from periodicCallback() |
apalmieri | 1:c81543a36d05 | 76 | if (triggerSensorPolling && ble.getGapState().connected) { |
apalmieri | 1:c81543a36d05 | 77 | triggerSensorPolling = false; |
screamer | 0:dbff48b4070b | 78 | |
apalmieri | 1:c81543a36d05 | 79 | // the magic battery processing |
apalmieri | 1:c81543a36d05 | 80 | batteryLevel++; |
apalmieri | 1:c81543a36d05 | 81 | if (batteryLevel > 100) { |
apalmieri | 1:c81543a36d05 | 82 | batteryLevel = 20; |
apalmieri | 1:c81543a36d05 | 83 | } |
apalmieri | 1:c81543a36d05 | 84 | |
apalmieri | 1:c81543a36d05 | 85 | batteryService.updateBatteryLevel(batteryLevel); |
apalmieri | 1:c81543a36d05 | 86 | } else { |
apalmieri | 1:c81543a36d05 | 87 | ble.waitForEvent(); // low power wait for event |
screamer | 0:dbff48b4070b | 88 | } |
screamer | 0:dbff48b4070b | 89 | } |
screamer | 0:dbff48b4070b | 90 | } |
apalmieri | 7:15e13a8f1193 | 91 | |
apalmieri | 7:15e13a8f1193 | 92 | int main(void) |
apalmieri | 7:15e13a8f1193 | 93 | { |
apalmieri | 7:15e13a8f1193 | 94 | Ticker t; |
apalmieri | 7:15e13a8f1193 | 95 | t.attach(blink, 1.0f); |
apalmieri | 7:15e13a8f1193 | 96 | |
apalmieri | 7:15e13a8f1193 | 97 | BLE::Instance().init(bleInitComplete); |
apalmieri | 7:15e13a8f1193 | 98 | } |
apalmieri | 7:15e13a8f1193 | 99 | |
screamer | 0:dbff48b4070b | 100 |