practice2 — Esp32 Devkit C V4 simulation

An interactive Esp32 Devkit C V4 circuit simulation you can run free in your browser on Velxio, by ajakriak82.

Components

Sketch code

#include <DHT.h>

#define DHT_PIN  4    // GPIO 4
#define DHT_TYPE DHT22

DHT dht(DHT_PIN, DHT_TYPE);


void setup() {
  Serial.begin(115200);
  dht.begin();
  delay(2000);
  Serial.println("ESP32 DHT22 ready!");
}

void loop() {
  delay(2000);

  float h = dht.readHumidity();
  float t = dht.readTemperature();

  if (isnan(h) || isnan(t)) {
    Serial.println("DHT22: waiting for sensor...");
    return;
  }
  Serial.printf("Temp: %.1f C   Humidity: %.1f %%\n", t, h);
}

More projects by ajakriak82