Relay
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Abstract
Using a relay, you can switch on/off external functions (light, horn etc.) on your Ardumower via pfodApp.
Wiring
GND o-----o GND Relais module +5V o-----o VCC Relais module Ardumower pinUserSwitch1 o-----o IN1 Relais module Relais module K1 o-----LED-----o LED supply voltage Relais module K1 o-------------o GND