homeostasis/src/main.cpp

#include <Arduino.h>
#include <DHT.h>

#define DHTTYPE DHT11
#define DHTPIN 4

DHT dht(DHTPIN, DHTTYPE);

int fc28_pin = A0;
int soil_threshold = 40;

void setup() {
  Serial.begin(9600);
  dht.begin();
}

void loop() {
  char buffer[200];
  int analog_val = analogRead(fc28_pin);
  int soil_percentage = map(analog_val, 0, 1023, 0, 100);
  sprintf(buffer, "Temperature: %.2f°C Humidity: %.2f%% Soil humidity: %i%%",
          dht.readTemperature(), dht.readHumidity(), soil_percentage);
  Serial.println(buffer);
  delay(30000);
}