How to add a physical power on button that needs only a single push to re-power your Klipper Printer using the BTT Power Relay v1.2! Normally with this relay in the power off state you need to switch ...
Control a relay (or three!) using a single ATTiny. Connect a switch between switch in and ground and then connect your relay to one of the three relay pins. No need for an external pull up resistor ...
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