From 6fbb77f2e56c91378b854408d55da64cba158049 Mon Sep 17 00:00:00 2001 From: AdamMiltonBarker Date: Sun, 1 Aug 2021 02:36:11 +0200 Subject: [PATCH] 1.0.0 Arduino --- .../HIAS-PIR-Sensor/HIAS-ESP32-PIR-Sensor.ino | 192 ++++++++++++++++++ arduino/HIAS-PIR-Sensor/data/.itkeep | 0 2 files changed, 192 insertions(+) create mode 100644 arduino/HIAS-PIR-Sensor/HIAS-ESP32-PIR-Sensor.ino create mode 100644 arduino/HIAS-PIR-Sensor/data/.itkeep diff --git a/arduino/HIAS-PIR-Sensor/HIAS-ESP32-PIR-Sensor.ino b/arduino/HIAS-PIR-Sensor/HIAS-ESP32-PIR-Sensor.ino new file mode 100644 index 0000000..2fd3386 --- /dev/null +++ b/arduino/HIAS-PIR-Sensor/HIAS-ESP32-PIR-Sensor.ino @@ -0,0 +1,192 @@ +/* HIAS ESP32 PIR Sensor + + A HIAS BLE server that provides readings from a PIR sensor. + + Based on https://github.com/nkolban/ESP32_BLE_Arduino/tree/master/examples/BLE_server_multiconnect + + MIT License + + Copyright (c) 2021 Asociación de Investigacion en Inteligencia Artificial + Para la Leucemia Peter Moss + + Permission is hereby granted, free of charge, to any person obtaining a copy + of this software and associated documentation files(the "Software"), to deal + in the Software without restriction, including without limitation the rights + to use, copy, modify, merge, publish, distribute, sublicense, and / or sell + copies of the Software, and to permit persons to whom the Software is + furnished to do so, subject to the following conditions: + + The above copyright notice and this permission notice shall be included in all + copies or substantial portions of the Software. + + THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + SOFTWARE. + + Contributors: + - Adam Milton-Barker +*/ + +#include +#include +#include +#include + +#include +#include + +struct Config { + String serviceUUID; + String characteristicUUID; + String deviceUUID; + String deviceName; +}; + +Config config; +int motion; + +const int LED = 2; +const int pirPin = 4; + +char bleBuffer[200] = {0}; + +BLEServer* pServer = NULL; +BLECharacteristic* pCharacteristic = NULL; +bool deviceConnected = false; +bool oldDeviceConnected = false; + +class DeviceBleCallbacks: public BLEServerCallbacks { + void onConnect(BLEServer* pServer) { + deviceConnected = true; + BLEDevice::startAdvertising(); + Serial.println("Client connected"); + digitalWrite(LED, HIGH); + }; + + void onDisconnect(BLEServer* pServer) { + deviceConnected = false; + Serial.println("Client disconnected"); + digitalWrite(LED, LOW); + } +}; + +void configs(Config &config) +{ + if (!SPIFFS.begin()) + { + Serial.println(F("Failed to mount SPIFFS")); + } + else + { + File file = SPIFFS.open("/config.json", FILE_READ); + if (!file) + { + return; + } + else + { + StaticJsonDocument<1048> doc; + DeserializationError error = deserializeJson(doc, file); + if (error) + { + Serial.println(error.c_str()); + } + else + { + config.serviceUUID = doc["ble"]["service"].as(); + config.characteristicUUID = doc["ble"]["characteristic"].as(); + config.deviceUUID = doc["iotJumpWay"]["device"].as(); + config.deviceName = doc["iotJumpWay"]["deviceName"].as(); + Serial.println(F("Configuration loaded!")); + } + } + file.close(); + } +} + +void setup() { + Serial.begin(115200); + + if(!SPIFFS.begin(true)){ + return; + } + + configs(config); + + // Set ultrasonic trigger and echo pins + pinMode(pirPin, INPUT); + + // Set LED pin + pinMode(LED, OUTPUT); + + // Create the BLE Device + BLEDevice::init(config.deviceName.c_str()); + + // Create the BLE Server + pServer = BLEDevice::createServer(); + pServer->setCallbacks(new DeviceBleCallbacks()); + + // Create the BLE Service + BLEService *pService = pServer->createService(config.serviceUUID.c_str()); + + // Create a BLE Characteristic + pCharacteristic = pService->createCharacteristic( + config.characteristicUUID.c_str(), + BLECharacteristic::PROPERTY_READ | + BLECharacteristic::PROPERTY_WRITE | + BLECharacteristic::PROPERTY_NOTIFY | + BLECharacteristic::PROPERTY_INDICATE + ); + + // Create a BLE Descriptor + pCharacteristic->addDescriptor(new BLE2902()); + + // Start the service + pService->start(); + + // Start advertising + BLEAdvertising *pAdvertising = BLEDevice::getAdvertising(); + pAdvertising->addServiceUUID(config.serviceUUID.c_str()); + pAdvertising->setScanResponse(false); + pAdvertising->setMinPreferred(0x0); + BLEDevice::startAdvertising(); + Serial.println("Awaiting client connection..."); +} + +int getReadings(){ + motion = digitalRead(pirPin); +} + +void loop() { + + // Send measurement to client + if (deviceConnected) { + String sendString = "{\"EntityType\":\"Device\",\"Entity\":\"" + config.deviceUUID + "\",\"Sensor\":\"" + config.deviceName + "\",\"Type\":\"Motion\",\"Value\":\"" + String(motion) + "\",\"Message\":\"Current motion\"}"; + memset(bleBuffer, 0, 200); + memcpy(bleBuffer, (char*)sendString.c_str(), 200); + pCharacteristic->setValue(bleBuffer); + pCharacteristic->notify(); + String message = "Sent " + sendString + " to client"; + Serial.println(F(message.c_str())); + } + + // Connection + if (deviceConnected && !oldDeviceConnected) { + oldDeviceConnected = deviceConnected; + } + + // Disconnection + if (!deviceConnected && oldDeviceConnected) { + delay(500); + pServer->startAdvertising(); + Serial.println("Client disconnected. Began advertising"); + oldDeviceConnected = deviceConnected; + } + + // Get current distance measurement + getReadings(); +} diff --git a/arduino/HIAS-PIR-Sensor/data/.itkeep b/arduino/HIAS-PIR-Sensor/data/.itkeep new file mode 100644 index 0000000..e69de29