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2 channel relay box

2 channel relay box

thingiverse

Here is a simple box for controlling two channels of relays from Banggood: https://www.banggood.com/5V-2-Channel-Relay-Module-Control-Board-With-Optocoupler-Protection-For-Arduino-p-1142262.html. This relay module allows you to control two separate circuits with a single Arduino board, providing a safe and reliable way to switch on or off your devices.

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