2018-11-28 (W) ModuKey

An untested board was put into the project. This was a 1x2 with an IO expander IC, so the traces were crowded compared to some of the other boards. There was also a need for boards to be added to the pin breakouts. Keyswitches were added right away.

1x2 board

When the IC was soldered in place, it was possible to see the chip with an I2C scanner. The soldering was inspected and looked reliable.

Chip was seen on an I2C scanner

Since the board could be seen by the computer, I assumed it would be usable, so new mounting holes were marked and drilled into the wooden board.

Marking holes for 1x2 board

Two more boards were added which had room for two switches each, but they were only breakout boards without room for ICs themselves. Three wires were run to each of the breakout boards, one wire per switch and a ground wire. At six switches, there was room for two more, but they were left unconnected.

Adding "wings" to board

ModuKey on GitHub

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
Completed projects from year 5

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