This project can be used to measure UV light levels. It uses an ML8511 UV sensors and outputs its value over BLE in units of mW/cm^2
main.cpp
- Committer:
- f3d
- Date:
- 2020-08-22
- Revision:
- 0:6d4b6c56a7ad
- Child:
- 1:ab9f0e572c98
File content as of revision 0:6d4b6c56a7ad:
/* mbed Microcontroller Library * Copyright (c) 2006-2015 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/services/iBeacon.h" BLE ble; const static char DEVICE_NAME[] = "NRF52832"; static const uint16_t uuid16_list[] = {0xabcd,0x1234}; DigitalOut Led(P0_25); Ticker ticker; void periodicCallback(void) { if (Led == 0) Led = 1; else Led = 0; } /** * 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) { } void onDataReadCallback(const GattReadCallbackParams *params) { } /** * This function is called when the ble initialization process has failed */ void onBleInitError(BLE &ble, ble_error_t error) { /* Initialization error handling should go here */ } void disconnectionCallback(const Gap::DisconnectionCallbackParams_t *params) { BLE::Instance().gap().startAdvertising(); } /** * 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); ble.gattServer().onDataRead(onDataReadCallback); /* 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(); } int main(void) { ticker.attach(periodicCallback, 0.1); /* Poll devices every 100ms */ ble.init(bleInitComplete); /* SpinWait for initialization to complete. This is necessary because the * BLE object is used in the main loop below. */ while (!ble.hasInitialized()) { /* spin loop */ } while (true) { ble.waitForEvent(); // allows or low power operation } }