Meet the little board that could: [alcor6502]’s tiny USB relay controller, now evolved into a multifunction marvel. Originally built as a simple USB relay to probe the boundaries of JLCPCB’s ...
When a visitor presses a doorbell or a sensor is activated, the 011484 SIP Dual Relay Controller makes a SIP call and plays a stored audio message via multicast over endpoints such as, “visitor at ...
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