A 10k ohm potentiometer is connected to an analog input. Turning it translates into values in the range [0-1023]. An attached SSR is connected to a water heater. By turning the SSR on and off, it is ...
ADG731 is an Arduino class that controls a 1 x 32 multiplexer over a SPI like interface. Only one of the 32 channels can be connected at the same time. The library also support to select none (== 33th ...