EuroPi
TinyGo
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EuroPi | TinyGo | |
---|---|---|
34 | 95 | |
390 | 14,479 | |
4.6% | 1.8% | |
8.6 | 9.3 | |
17 days ago | 3 days ago | |
Python | Go | |
Creative Commons Zero v1.0 Universal | GNU General Public License v3.0 or later |
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.
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.
TinyGo
- Gokrazy – Go Appliances
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A "Tiny" APISIX Plugin
Reading through the documentation, you will understand why this plugin is called "tiny," i.e., the SDK uses the TinyGo compiler instead of the official Go compiler. You can read more about why this is the case on the SDK\'s overview page, but the TLDR version is that the Go compiler can only produce Wasm binaries that run in the browser.
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What's Zig got that C, Rust and Go don't have? [video]
Not only you can fit Go into a kernel, there is at least two products that do so.
TamaGo, used to write the firmware used in USB armory.
https://www.withsecure.com/en/solutions/innovative-security-...
TinyGo, which even has official Arduino and ARM support, and is sponsored by Google
https://tinygo.org/
Ah but that isn't proper Go! Well neither is the C code that is allowed to be used in typical kernel code, almost nothing from ISO C standard library is available, and usually plenty of compiler specific language extensions are used instead.
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Show HN: A new stdlib for Golang focusing on platform native support
Reminds me of https://tinygo.org/ - a project that brings Golang to embedded devices, browser (wasm) contexts. Do you converge or diverge from that project?
- TinyGo release 0.29 is out
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Pico with C
You should also consider TinyGo. It can compile Go for the Pico, and is starting to get good device support.
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Rust 1.71.0
Thankfully some folks completly ignored whatever the rest of the world thinks system programming is all about and created:
- TinyGo (https://tinygo.org/), which is acknowledged by people in the industry[0][1]
- TamaGo unikernel on USB Armory secure key (https://www.withsecure.com/de/solutions/innovative-security-...)
And then there is the question if writing compilers, assemblers, linkers is systems programming or not.
[0]-https://www.cnx-software.com/2019/08/28/tinygo-go-compiler-f...
[1]-https://twitter.com/ArmSoftwareDev/status/131680481331796787...
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When would you (not) recommend Go over Rust?
Have you seen TinyGo? In the case of embedded system I would probably still chose C over Rust if the system didn't support dynamic memory allocation, and most embedded systems do not.
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“C is quirky, flawed, and an enormous success” – Dennis Ritchie
>I really hate how for microcontrollers the only two choices are either C++ or Micropython
There's TinyGo as well. https://tinygo.org/
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WebAssembly System Interface (WASI) with sockets for Go
Gist link fixed, thanks. Compared to TinyGo, Go with GOOS=wasip1 will probably generate larger artifacts (at least, for now). This is because it bundles the entire Go runtime. The benefit is that it fully supports goroutine scheduling and non-blocking I/O. TinyGo (I believe) still uses a custom asyncify pass and does not support non-blocking I/O nor basic WASI networking (e.g. https://github.com/tinygo-org/tinygo/pull/2748 never landed, but GOOS=wasip1 supports it).
What are some alternatives?
typhoon-manual - Manual / Cheatsheet for Typhoon module
MicroPython - MicroPython - a lean and efficient Python implementation for microcontrollers and constrained systems
go - The Go programming language
thonny - Python IDE for beginners
zig - General-purpose programming language and toolchain for maintaining robust, optimal, and reusable software.
squares-and-circles - squares-and-circles is an alternate firmware for the Eurorack module O_C, targeting Teensy 4.
micropython-ulab - a numpy-like fast vector module for micropython, circuitpython, and their derivatives
Apeks - 12-bit through-hole adaptation of Mutable Instruments Peaks
awesome-micropython - A curated list of awesome MicroPython libraries, frameworks, software and resources.
TuringMachine - Turing Machine Mk 2 Main Module
PlatformIO - Your Gateway to Embedded Software Development Excellence :alien: