I took a detour on the road to powered speakers and remixed the cassette lid I previously designed in order to hold a panel mount voltmeter from Adafruit. I set out with a few goals:
- Blend reasonably well with fischertechnik parts without requiring modifications to those parts.
- Have two connectors each for positive and ground, so the module can be chained with other modules.
- Use connectors that work as well as possible with fischertechnik plugs.