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midi-solenoid-driver

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@willemcvu

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KiCad projectAll 16 files, ready to open in KiCad1.4 MB
For fabricationGerbers, drill, pick-and-place and BOMGerbers and drill zip523 KBGerbers and drill zip: midi-solenoid-driver324 KBGerbers and drill zip: native-midi-interface99 KBGerbers and drill zip: usb-serial-interface101 KBGerbers and drill zip: wifi+native-midi246 KBGerbers and drill zip: wifi+native-midi_panelized489 KBPick and place (CSV)5.5 KBPick and place (CSV): midi-solenoid-driver5.9 KBPick and place (CSV): native-midi-interface1.1 KBPick and place (CSV): usb-serial-interface966 BPick and place (CSV): wifi+native-midi2.2 KBPick and place (CSV): wifi+native-midi_panelized4.3 KBPCB BOM CSV (PCB SVG)3.7 KBPCB BOM CSV (PCB SVG: midi-solenoid-driver)3.9 KBPCB BOM CSV (PCB SVG: native-midi-interface)776 BPCB BOM CSV (PCB SVG: usb-serial-interface)667 BPCB BOM CSV (PCB SVG: wifi+native-midi)1.5 KBPCB BOM CSV (PCB SVG: wifi+native-midi_panelized)3.0 KB
3D modelThe board with its parts, for an enclosure (GLB)3D model (GLB)9.5 MB3D model (GLB): midi-solenoid-driver9.4 MB3D model (GLB): native-midi-interface1.3 MB3D model (GLB): usb-serial-interface1.4 MB3D model (GLB): wifi+native-midi3.4 MB3D model (GLB): wifi+native-midi_panelized6.7 MB
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README

midi-solenoid-driver

A set of PCBs to drive solenoids using MIDI data, for use in automating musical instruments.

The boards in this repo will be available for sale shortly on Tindie and/or eBay. If you are interested in buying assembled PCBs or bare PCBs, please send me a message as it would be helpful to know how many might sell. Thanks!

The system consists of two parts: the solenoid driver board(s), and the USB interface board. The solenoid driver board(s) are daisy-chained via RJ12 ("phone cables"), and at the end of the chain is the USB interface board, which passes MIDI data from the USB port to all the solenoid driver boards (as many driver boards as are needed):

In addition to supporting daisy-chaining, the solenoid driver board has several notable features that allow for high usability with limited electronics experience.

Currently, MIDI data is fed to the solenoid drivers by a custom USB to serial-over-RJ12 board:

In the near future, more RJ12-compatible MIDI interface boards will be designed and released, allowing for more connectivity options. These will likely include:

  • Native plug-and-play USB MIDI (as opposed to the MIDI-over-serial in use right now)
  • Actual MIDI connector
  • Bluetooth adapter
  • AppleMIDI (RTP-MIDI / MIDI-over-network) WiFi interface

Additionally, more driver boards for devices other than solenoids will be designed/released, including a MIDI servo driver.

If you have specific needs for a particular project and need customized hardware, I can probably accomodate. Open an issue or contact me via my blog (https://willemhillier.wordpress.com/)and we'll go from there.

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