After the electromechanical timer ... mechanical alarm clock. It starts the cycle, then moves through various modes based on the passage of time. [Paul] started his hack by observing how long the ...

The function of this temperature-activated switch is to “terminate” defrost when the evaporator coil has been defrosted, and also to “delay” the evaporator fans from coming on immediately after ...

Both are optical, which in theory helps with input latency by reducing the so-called “debounce delay” of traditional mechanical switches. For the wireless models, there’s a choice of ...