Displaying DS18B20 temperature to 0802-A HD44780 LCD 14 pin display - case112/arduino-8x2lcd-thermostat. Displaying DS18B20 temperature to 0802-A HD44780 LCD 14 pin display - ...

This is a 'simple' thermostat controller, using a DS18B20 oneWire temperature sensor on a WeMos D1 Mini Pro. The DS18B20 has a +/-0.5 °C tolerance and is perfectly stable (and even cheaper). I tried ...

Of course, this little gadget can’t tell you if you’ve come down with a nasty case of Rigellian fever, but it can read your vitals using a MAX30100 pulse oximeter module and DS18B20 thermometer.