The desired voltage is set with an attached keypad, resulting in a digital output on the 8-bits of port D. The port connects to another protoboard with an R-2R digital-to-analog converter ...

SK-1131-SQ digital access keypads have the following features ... Alarm output - When used with an optional magnetic contact. Keypad active output --- Activates for 10 seconds when any key on the ...

Keypad Pro is a lightweight and portable controller that's ... On the unit's side you'll also find a TRS MIDI output and sustain pedal jack. The controller ships with a bundle of free software that ...