EuroPi
materials
EuroPi | materials | |
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34 | 199 | |
393 | 4,663 | |
2.3% | 1.0% | |
8.6 | 9.5 | |
29 days ago | 6 days ago | |
Python | HTML | |
Creative Commons Zero v1.0 Universal | MIT License |
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EuroPi
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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.
materials
- Think Python, 3rd Edition
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Collection of resources to get started on your programming journey
Python - Python.org - Official Python website with documentation and tutorials. - Codecademy Python Course - Real Python - Python tutorials and articles for all skill levels.
- I have started my Python self Learning Journey - Is one source enough?
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Hey guys, im doing a small project, would appreciate if you could tell me if theres a place I can clarify a lot of my doubts
I am no expert on facial recognition software but I read over an article on https://realpython.com. The site might be a little pricey (to some) but a few people in my Python group highly recommended it. It does have a ton of good tutorials.
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Road-Map for Python Developers
Real Python
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How I get myself to learn Python.
https://realpython.com/ is an excellent source. You can find there the building blocks of Python, explanations, hints, and tips.
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Need to Escape My Job
Check out RealPython they were a great resource for me when I first started with Python. Linux skills will always be in demand too, though you might not necessarily find a job for both Python and Linux but I'm sure many exist. When you build a project make sure to document it and have a GitHub page for it, in a way your GitHub will serve as your resume in the software engineering space so take time to learn the platform and Git. More than likely you will also use GitHub or another VCS on the job so it's worth trying to understand.
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Beginner in Python!
Website: Real Python - Free docs are good
- Imparare python
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Absolute beginner
For help on specific topics, courses, or crash course style articles on a topic/technique, check out https://realpython.com/
What are some alternatives?
typhoon-manual - Manual / Cheatsheet for Typhoon module
learnxinyminutes-docs - Code documentation written as code! How novel and totally my idea!
MicroPython - MicroPython - a lean and efficient Python implementation for microcontrollers and constrained systems
missing-semester - The Missing Semester of Your CS Education 📚
thonny - Python IDE for beginners
codewars.com - Issue tracker for Codewars
squares-and-circles - squares-and-circles is an alternate firmware for the Eurorack module O_C, targeting Teensy 4.
developer-roadmap - Interactive roadmaps, guides and other educational content to help developers grow in their careers.
Apeks - 12-bit through-hole adaptation of Mutable Instruments Peaks
sdk - The Dart SDK, including the VM, dart2js, core libraries, and more.
TuringMachine - Turing Machine Mk 2 Main Module
flexboxfroggy - A game for learning CSS flexbox 🐸