2018-04-08 (Su) ModuKey

A small board was designed with only two onboard switches and an IO expander. All eight IO points were broken out so it could easily act as a hub for nearby switches. The mounting hole spacing was kept uniform at the ends.

1x2 board with I2C chip

The next 2x2 board had no IO expander onboard. The purpose of the board was to hold up to four switches and provide terminals which would be easy to access. Mounting holes were placed in the center of the board. This may not be a usable design, depending on how well a key switch can fit over countersunk screws underneath it. If it works, it would be a very discrete breakout board.

2X2 breakout board

A single-key breakout board was made for the sole purpose of having a button which can be mounted to a uniform screw mount. This may be useful for placing an array of buttons in an usual configuration or maybe mounting to the top of a handle to press with the thumb.

1 key breakout board

In a similar fashion, a double-key breakout board was made which placed the screws under a switch but provided minimal overhang around the switches.

1X2 breakout board

The rest of the posts for this project have been arranged by date.

First time here?

Completed projects from year 1.

Completed projects from year 2.

Completed projects from year 3.

Completed projects from year 4.

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