In order to do so, we need to use a tool to write our program into the flash memory of the development board. Prepare the Arduino IDE environment for ESP32 developmentĪt this point in time, you are ready to flash a program into your ESP32 board to read from the DHT11 sensor.
Connect the:įor example, if you have a DHT11 sensor, this is how your connection may look like: 3. When you look at your DHT11 / DHT 22 sensor, you can see three pins labeled +/VCC, out/s/data and -/GND. When you have done so, you can then connect your DHTxx sensor to your development board. Connect your DHT11 / DHT 22 sensor to your WiFi Kit 32 development boardĪfter you have gotten the hardware, use your soldering iron and wire to solder the GPIO headers to your WiFi Kit 32 development board. Get the hardware to build your thermometer and humidity gaugeįirst, you will want to make sure that you have the following hardware:Ģ. Given these points, let's look at how we can show the temperature and humidity readings of your room on a Heltec WiFi Kit 32 development board attached to a DHTXX sensor.ġ. If you attach the sensor to a Heltec WiFi Kit 32 development board, you will be able to put up the readings on a 0.96 Inch OLED screen. When you have a DHT11 / DHT22 sensor, you can measure the temperature and humidity of your room. How to show the temperature and humidity of your room on a Heltec WiFi Kit 32 attached to a DHT11 / DHT22 sensor
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