Constructing a web-based software and 4066 CMOS switch hardware (connection by way of parallel port) interface for a Cimbali expresso machine.
1) Deconstruction of coffee machine and construction of hardware interface.
2) Testing and short-circuit of coffee machine - transformer to be replaced.
Note also:
"The analogue signal must be kept within the limits set by the power supply to the 4016."
so with a 5v supply we cannot switch 12v (coffee)