The Mains Switch Widget allows the user to switch 230V or 110V mains ON and OFF to
mains powered devices from microcontrollers like the PIC and the Arduino or from
single board computers like the Raspberry Pi and the Beaglebone. All the safety requirements
are designed- in to prevent any faults resulting in a fire. A plastic enclosure is
supplied to prevent the user from accidentally touching the mains voltage.
