Control boiler temperature.
Arduino parts:
- Arduino (i use Leonardo)
- Relay (i use 10A relay 1 channel. Connected to PIN 12)
- DS18B20 - temperature sensor (i use DS18B20 in a protected stainless steel housing. Connected to PIN 11)
- LCD 16x2 (optional) (i use 1602 LCD Keypad shield DFRobot)
- RTC clock (optional) (i use TinyRTC. Connected to SDA&SCL on Leonardo)