Hey, I have a question is better to use "utp" cable or soft wire 0.5mm² for dht 22 (am2302). Distance from dht to arduino is 1.5m. (And I used dht 22 and mercury thermometer. Diffrence in temperature was about 1°C. Is that normal?)
1.5M wire type shouldn't matter. I like three-wire shielded but you can use a USB cable if you want.
Add a trim function to your project to allow calibration of the DHT-22 (BME280 is more accurate and includes baro). Keep the offset in EEPROM and you only have to calibrate it once.
