Fits to the HAH PCB. One relay + protection diode, driver transistor, resistor and terminal connector blocks included. A maximum of four relays can be fitted to the PCB
Microcontroller (Atmel MEGA328P) pre-programmed to operate with the HAH firmware. DIL socket, crystal and caps included. This chip includes support for the new Universal RF capability.
The PCB that holds the HAH microcontroller. Supplied with header pins and resistors for the 1-Wire and I2C bus. A good option if you want to try programming your own microcontroller.