5V LED Relay Module Delay Power Off Disconnect Trigger Delay Cycle Timer Switch
ab 2,96 €
OLED LED&RGB. Nano Sheild. P-4: Signal hold function If there is a trigger signal, the timing is cleared and the relay is kept on; when the signal disappears, the relay is disconnected after the timing OP; during the timing period, there is a signal again, the timing is cleared;.
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