esp32-eurorack-audio
Open source eurorack audio module based on ESP32 (by ctag-fh-kiel)
EuroPi
EuroPi: A reprogrammable Eurorack module based on the Raspberry Pi Pico (by Allen-Synthesis)
| esp32-eurorack-audio | EuroPi | |
|---|---|---|
| 1 | 34 | |
| 52 | 393 | |
| - | 2.3% | |
| 10.0 | 8.6 | |
| over 3 years ago | 30 days ago | |
| Python | ||
| - | Creative Commons Zero v1.0 Universal |
The number of mentions indicates the total number of mentions that we've tracked plus the number of user suggested alternatives.
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
esp32-eurorack-audio
Posts with mentions or reviews of esp32-eurorack-audio.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2022-06-03.
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Question: did anyone of you build a eurorack module with an ESP32 as sound source?
A while ago i found a project on github called the Strämpler, but it seems sead for now. Last change 3 years ago. ( https://github.com/ctag-fh-kiel/esp32-eurorack-audio ) Did anyone build something similar? I have a Behringer Brains which is a clone of mutable instruments plaids which is open source, but mutable instruments closed their shop for good now. The software it still there. (https://github.com/pichenettes/eurorack)
EuroPi
Posts with mentions or reviews of EuroPi.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2023-06-15.
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Using a Raspberry Pi Pico as a cheap multi-channel DAC for pitch CV
Hi all, I'm making a Eurorack sequencer module with 4 pitch CV outputs (NOT audio) and I've noticed that DACs are kind of a pain due to being expensive, SMT-only & still requiring buffering with op amps. I figure that a good alternative would be to buy a Raspberry Pi Pico for $4 which will give me 8 PWM outputs that I would then hook up to an output stage like the one in the europi (shown here: https://github.com/Allen-Synthesis/EuroPi/blob/main/hardware/EuroPi/schematic/europi_schematic.pdf)
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What is your favorite open source eurorack module? And the best documented?
Bom has links for sourcing parts
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Is it really necessary to put opamps in front of my ADC inputs?
Up until now I've been using the analog input stage from the EuroPi schematic as my model for a CV in. You can see it here:
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Easiest/cheapest way to get multiple (9-12) analog cv outputs (0-5V volt) from a single microcontroller/arduino
There is no super cheap way to get a lot of analog outputs from an MCU. Filtered PWM is your best bet for cost effectiveness (I recommend looking at the EuroPi from allen synthesis : https://github.com/Allen-Synthesis/EuroPi). Otherwise if PWM doesn't work for you, you'll need to look into DAC chips. The MCP4728 is a good spot to start, it's 12-bit and has 4 channels: https://www.adafruit.com/product/4470. Since it's I2C controlled you can have multiple of them on one bus. Maybe looking into a 16 channel PWM driver for a lot of outputs: https://www.adafruit.com/product/815. Hope this helps!
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My Raspberry Pi Pico based Eurorack module has a new software release!
The project is completely open-source and open hardware, and the contributors together have made this big list of scripts that you can run using a menu system!
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My reprogrammable DIY module (EuroPi) has just had a new free software release!
The project is entirely open-source but I do also sell the Panel+PCBs on my site!
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Best microcontroller for DIY modules?
Check out the EuroPi project https://github.com/Allen-Synthesis/EuroPi
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Firmware hacking with Uncertainty
EuroPi Turing Machine script is feeding the Uncertainty cv input with pulse 1 opening an envelope on Maths for voice 1 & 2, pulse 2 opens the second Maths envelope for sub osc voice 3. A little delay added for texture. That's pretty much it!
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Hardware List
EuroPi - A reprogrammable Eurorack module based on the Raspberry Pi Pico
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A Question, for anyone that knows how MI firmware code works
The patch.init() is still a great way to start, but you could save some money ditching the audio i/o and build yourself an EuroPi. However, that requires DIY, obviously.
What are some alternatives?
When comparing esp32-eurorack-audio and EuroPi you can also consider the following projects:
ctag-tbd - CTAG TBD >>to be determined<< an extendible open source Eurorack sound module
typhoon-manual - Manual / Cheatsheet for Typhoon module
eurorack - Eurorack modules
MicroPython - MicroPython - a lean and efficient Python implementation for microcontrollers and constrained systems
thonny - Python IDE for beginners
squares-and-circles - squares-and-circles is an alternate firmware for the Eurorack module O_C, targeting Teensy 4.
Apeks - 12-bit through-hole adaptation of Mutable Instruments Peaks
TuringMachine - Turing Machine Mk 2 Main Module
pico-balls - Bouncy balls on Raspberry Pi Pico and 240x240 LCD
SWN - Spherical Wavetable Navigator source code
mutable-dev-environment - Development environment for the firmware of Mutable Instruments' products