Description

This is an input module for 6 Pack CNC controllers. It is also compatible with the external driver version of the 6 Pack. It works well for any standard mechanical switch and it also supports powered switches like 3D printer optical switches, switches with LED indicators and proximity switches. You can choose to power those from 5V or the VMot (Motor) power on the 6 Pack via a jumper.

Each of the 4 switch inputs has an LED to indicate when the signal is closed to ground. Each has R/C noise filtering and reverse voltage protection.

The mating connectors (not provided) are JST XH 3 pin. These connectors are pretty standard for the 3D printer switch cables.

It is fully assembled except for the 12 pin header connector. It is provided, but you must solder to the bottom of the module.

Documentation

The design is open source. When no commercial or other restrictions. See this page for usage instructions and source files.