Have an old DSC-1550 (PC 1550) Alarm Panel? This video shows how to connect an Arduino to the panel, simulate a keypad, …
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Connecting an Arduino to a DSC 1550 Alarm Panel
YouTubeHave an old DSC-1550 (PC 1550) Alarm Panel? This video shows how to connect an Arduino to the panel, simulate a keypad, …
source
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