temp.ino

#include <Wire.h>
#include "AHT20.h"
#include <ESP8266WiFi.h>
#include <InfluxDbClient.h>
#include <InfluxDbCloud.h>

#define ONE_MINUTE 60 * 1000
#define ONE_HOUR ONE_MINUTE * 60

#define INFLUXDB_URL "http://influxdb2.lan:8086"
#define INFLUXDB_TOKEN "RhSqRBPW11u7UYYWLV94VSC07HOcinqrdoWMZoaxFU3pYE94pIOW-Nu2_EjZOgOJXLba3MHkSPM0YoJaQ2SPdg=="
#define INFLUXDB_ORG "98dbe379e534ae7b"
#define INFLUXDB_BUCKET "sensors"
// WiFi AP SSID
#define WIFI_SSID "Ono-Sendai Cyberspace"
// WiFi password
#define WIFI_PASSWORD "rene coty est ton ami"

// Time zone info
#define TZ_INFO "UTC0"
#define DEVICE "ESP8266"
#define LOCATION "FILAMENT_BOX"
// Temp sensor
AHT20 aht20;

// Declare InfluxDB client instance with preconfigured InfluxCloud certificate
InfluxDBClient client(INFLUXDB_URL, INFLUXDB_ORG, INFLUXDB_BUCKET, INFLUXDB_TOKEN, InfluxDbCloud2CACert);

// Declare Data point
Point sensor("atmospheric_data");

// const char* ssid = "iot";
// const char* password = "!42# this is my iot password !42#";
// const char* ssid = "Ono-Sendai Cyberspace";
// const char* password = "rene coty est ton ami";

void setup() {
  Serial.begin(115200);
  Serial.print("\n\n");
  Wire.begin();  // Start the I2C Controller bus on the NodeMCU

  // Check that the sensor is online
  if (!aht20.begin()) {
    Serial.println("Could not find AHT20 sensor, resetting");
    while (1)
      ;  // This will cause a crash and a reset (apparently)
  }
  Serial.println("AHT20 sensor online");

  // Connect to Wi-Fi
  Serial.print("Connecting to ");
  Serial.println(WIFI_SSID);

  WiFi.mode(WIFI_STA);
  WiFi.begin(WIFI_SSID, WIFI_PASSWORD);

  while (WiFi.status() != WL_CONNECTED) {
    delay(1000);
    Serial.println(WiFi.status());
    Serial.print(".");
  }

  Serial.println("");
  Serial.println("Wi-Fi connected.");
  Serial.println("IP address: ");
  Serial.println(WiFi.localIP());


  // Accurate time is necessary for certificate validation and writing in batches
  // We use the NTP servers in your area as provided by: https://www.pool.ntp.org/zone/
  // Syncing progress and the time will be printed to Serial.
  timeSync(TZ_INFO, "pool.ntp.org", "time.nis.gov");


  // Check server connection
  if (client.validateConnection()) {
    Serial.print("Connected to InfluxDB: ");
    Serial.println(client.getServerUrl());
  } else {
    Serial.print("InfluxDB connection failed: ");
    Serial.println(client.getLastErrorMessage());
  }

  // Add tags to the data point
  sensor.addTag("device", DEVICE);
  sensor.addTag("location", LOCATION);
}

void loop() {
  // Clear fields for reusing the point. Tags will remain the same as set above.
  sensor.clearFields();



  float humidity = aht20.getHumidity();
  float temperature = aht20.getTemperature();

  if (isnan(humidity) || isnan(temperature)) {
    Serial.println("Failed to read from AHT20 sensor!");
    return;
  }



  // Store measured value into point
  sensor.addField("temperature", temperature);
  sensor.addField("humidity", humidity);


  Serial.print("Humidity: ");
  Serial.print(humidity);
  Serial.print(" %\t");
  Serial.print("Temperature: ");
  Serial.print(temperature);
  Serial.println(" *C");


  // Print what are we exactly writing
  Serial.print("Writing: ");
  Serial.println(sensor.toLineProtocol());

  // Check WiFi connection and reconnect if needed
  if (WiFi.status() != WL_CONNECTED) {
    Serial.println("Wifi connection lost");
  }

  // Write point
  if (!client.writePoint(sensor)) {
    Serial.print("InfluxDB write failed: ");
    Serial.println(client.getLastErrorMessage());
  }


  delay(ONE_MINUTE);
}