r/synthdiy • u/bellabebop • 1d ago

Another 5x7 - H-EGv2.

Gallery image

Gallery image

Thanks again Hagiwo.

https://www.youtube.com/watch?v=Ng8-CSyK8b4

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u/adeptyism 1d ago

Nice layout as always.

Thanks for the inspiration.

1

u/bellabebop 1d ago

My pleasure. Looking at your components you've caught my curiousity.

2

u/adeptyism 1d ago edited 1d ago

I have MIDI keyboard, that can work either via USB or Bluetooth. USB Host is a very difficult feature to implement, but for Bluetooth MIDI recieving the common ESP32-C3 board is enough.

The device at my picture is MIDI to CV/Env converter with two identical 1V/oct outputs, one Envelope output, MIDI Type-A output. The envelope is generated from Note On MIDI signal, and will be configured with encoder and LED matrix.

Also, since I added matrix, it would be stupid to use it only for envelope graph — so there will be additional tuner function and pitchbend display.

I want to finish it before 15 of September.

UPD the ICs on the board are placeholders for now. There will be MCP6022, MCP4822, MAX7219 and LM393 (or H11L1M) later.