Today i finished my high voltage control for my terrarium. It contains an RPI 3 , an 8channel relay card and a ULN2803 to invert the outputs of the RPI because the relay relay card is active high.
On the picture the GPIO link cable is not installed. All GPIO ports are availible on the interface board. Later i can add I2C and 1W devices to the interface board.
Now i can start creeating my blocky scripts.
Kind regards