5V-30V Micro USB Power Delay Relais Timer Steuerung Trigger Verzögerung Schalter Modul
2,20 €
Providing a low pulse signal, or touch trigger key, relay and indicator lights. For example: 22uf capacitor and resistor 1M. back to the state before the trigger. With a relay indicator. but there is no separation between module’s ground and signal’s ground.
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