vongomben
commented
2 years ago 3 sensors
`// This codes assumes you have: // - Light sensor on A0 // - Grove Ultrasonic Ranger on D0 // - DHT11 on D2 // - Grove NFC on Serial Port // // // REQUIRES the following Arduino libraries: // - DHT Sensor Library: https://github.com/adafruit/DHT-sensor-library // - Adafruit Unified Sensor Lib: https://github.com/adafruit/Adafruit_Sensor // - Grove Ultrasonic Ranger Library: https://github.com/Seeed-Studio/Seeed_Arduino_UltrasonicRanger // - NFC Lirabries for Grove NFC: https://github.com/Seeed-Studio/Seeed_Arduino_NFC
define BROKER_IP "broker.hivemq.com"
define DEV_NAME "mqttdevice"
define MQTT_USER "mqtt_user"
define MQTT_PW "mqtt_password"
include "arduino_secrets.h"
const char ssid[] = SECRET_SSID; const char pass[] = SECRET_PASS;
include
ifdef ARDUINO_SAMD_MKRWIFI1010
include
elif ARDUINO_SAMD_MKR1000
include
elif ESP8266
include
else
error unknown board
endif
WiFiClient net; MQTTClient client; unsigned long lastMillis = 0;
include
if 0
include
include
include "PN532.h"
PN532_SPI pn532spi(SPI, 10); PN532 nfc(pn532spi);
elif 1
include
include
PN532_HSU pn532hsu(Serial1); PN532 nfc(pn532hsu);
else
include
include
include
PN532_I2C pn532i2c(Wire); PN532 nfc(pn532i2c);
endif
include
include
include
include "Ultrasonic.h"
define DHTPIN 2
define DHTTYPE DHT11
DHT_Unified dht(DHTPIN, DHTTYPE);
String code = "unkwonwn"; int val; const int sensore = A0; Ultrasonic ultrasonic(0);
uint32_t delayMS;
float temp; float hum;
void connect() { Serial.print("checking wifi..."); while (WiFi.status() != WL_CONNECTED) { Serial.print("."); delay(1000); } Serial.print("\nconnecting..."); while (!client.connect(DEV_NAME, MQTT_USER, MQTT_PW)) { Serial.print("."); delay(1000); } Serial.println("\nconnected!"); client.subscribe("/hello"); //SUBSCRIBE TO TOPIC /hello } void messageReceived(String &topic, String &payload) { Serial.println("incoming: " + topic + " - " + payload); if (topic == "/hello") { if (payload == "open") { Serial.println("open"); digitalWrite(LED_BUILTIN, HIGH); } else if (payload == "closed") { Serial.println("closed"); digitalWrite(LED_BUILTIN, LOW); } } }
void setup() { Serial.begin(9600);
WiFi.begin(ssid, pass); // Note: Local domain names (e.g. "Computer.local" on OSX) are not supported by Arduino. // You need to set the IP address directly. // // MQTT brokers usually use port 8883 for secure connections. client.begin(BROKER_IP, 1883, net); client.onMessage(messageReceived); connect();
// Initialize device. dht.begin();
Serial.println(F("DHTxx Unified Sensor Example")); // Print temperature sensor details. sensor_t sensor; dht.temperature().getSensor(&sensor); Serial.println(F("------------------------------------")); Serial.println(F("Temperature Sensor")); Serial.print (F("Sensor Type: ")); Serial.println(sensor.name); Serial.print (F("Driver Ver: ")); Serial.println(sensor.version); Serial.print (F("Unique ID: ")); Serial.println(sensor.sensor_id); Serial.print (F("Max Value: ")); Serial.print(sensor.max_value); Serial.println(F("°C")); Serial.print (F("Min Value: ")); Serial.print(sensor.min_value); Serial.println(F("°C")); Serial.print (F("Resolution: ")); Serial.print(sensor.resolution); Serial.println(F("°C")); Serial.println(F("------------------------------------")); // Print humidity sensor details. dht.humidity().getSensor(&sensor); Serial.println(F("Humidity Sensor")); Serial.print (F("Sensor Type: ")); Serial.println(sensor.name); Serial.print (F("Driver Ver: ")); Serial.println(sensor.version); Serial.print (F("Unique ID: ")); Serial.println(sensor.sensor_id); Serial.print (F("Max Value: ")); Serial.print(sensor.max_value); Serial.println(F("%")); Serial.print (F("Min Value: ")); Serial.print(sensor.min_value); Serial.println(F("%")); Serial.print (F("Resolution: ")); Serial.print(sensor.resolution); Serial.println(F("%")); Serial.println(F("------------------------------------")); // Set delay between sensor readings based on sensor details. delayMS = sensor.min_delay / 1000;
}
void loop() {
client.loop(); if (!client.connected()) { connect(); }
// Get temperature event and print its value. sensors_event_t event; dht.temperature().getEvent(&event); if (isnan(event.temperature)) { Serial.println(F("Error reading temperature!")); } else {
temp = event.temperature;} // Get humidity event and print its value. dht.humidity().getEvent(&event); if (isnan(event.relative_humidity)) { Serial.println(F("Error reading humidity!")); } else {
hum = event.relative_humidity;}
// read distance
long RangeInCentimeters; RangeInCentimeters = ultrasonic.MeasureInCentimeters();
// read light int light = analogRead(sensore);
// read temperature delay(delayMS); // sensors_event_t event; // dht.temperature().getEvent(&event);
// Read humidity // dht.humidity().getEvent(&event);
// put everything ina Json Object
JSONVar myObject;
myObject["Brightness"] = light; myObject["Distance"] = RangeInCentimeters; myObject["Temperature"] = temp; myObject["Humidity"] = hum;
// JSON.stringify(myVar) can be used to convert the json var to a String String jsonString = JSON.stringify(myObject);
Serial.println(myObject);client.publish("/Its-Gomba", jsonString); delay(5000); // publish a message roughly every second. // if (millis() - lastMillis > 1000) { // lastMillis = millis(); // client.publish("/hello", myObject); //PUBLISH TO TOPIC /hello MSG world // }
}`
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