Here is the build guide for my 3V3 MIDI Module PCB.
Warning! I strongly recommend using old or second hand equipment for your experiments. I am not responsible for any damage to expensive instruments!
These are the key tutorials for the main concepts used in this project:
If you are new to microcontrollers, see the Getting Started pages.
Bill of Materials
- Naturally, you'll need a 3V3 MIDI Module PCB.
- Resistors: one each of 220Ω, 470Ω, 10Ω, 33Ω.
- 100nF ceramic capacitor.
- 1N914 or 1N4148 diode or similar.
- H11L1 optoisolator.
- 2x 5-pin 180 DIN sockets (see photos for footprint).
- Optional: 6 pin DIP socket.
- 4-way header pins.
The socket is optional but recommended.
Build Steps
The build should be a relatively straightforward through-hole components build. All components should be placed on the same side of the board, as indicated by the markings.
I recommend the following order:
- Diode and resistors
- 6-way DIP socket (if used).
- Capacitor
- 4 pin header.
- H11L1 if soldered directly.
- 5-way DIN sockets.
Here are some of the build steps in photos.
PCB Errata
As far as I'm aware at the time of writing, there is nothing to report.
Potential Future Enhancements:
- A future version could include some mounting holes (I did think about it, but then decided not to).
- A MIDI activity LED might be useful in the future.
You can find the PCB design files on GitHub here: https://github.com/diyelectromusic/sdemp_pcbs/tree/main/MIDIModule3V3
Closing Thoughts
Once again, I used the Seeed Fusion pcb service, spending some of my discount vouchers and I'm very happy to keep doing so. As far as I'm concerned the boards so far have always come back in good time and have been perfect for what I need.
Also, as always I have a couple of unpopulated pcbs spare if anyone is interested in having one. Just ping me a message via some suitable route. Alternatively, all the required design files are on GitHub.
Kevin
No comments:
Post a Comment