Alternatives
Products that do what Velxio does
Arduino emulator running entirely in the browser
- 1WW
2020 · blog.yifangu.com
- 2IP
I've been trying to make accessible and beautiful GPIO pinouts since I started one for the Raspberry Pi in 2013 [1]. I've since given the Raspberry Pi Pico [2] and Pico 2 [3] microcontrollers the same treatment when they launched. Recently I've updated these with a new "Upside-down" view to complement the rear view, giving a pinout in the right orientation to match your project. The Pico sites are all hand-coded single HTML pages with supporting CSS and minimal JS. They are set up to optionally install as a "Desktop" web app. They also degrade into a somewhat usable table in lieu of CSS and…
2025 · pico2.pinout.xyz
- 3MX
2013 · copy.sh
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- 7IB
A while back I wrote a CHIP-8 emulator (which is considered the Hello, World! of emulators and is more accurately a virtual machine since historically CHIP-8 was an interpreted language running on top of the COSMAC VIP to make game programming easier). But a few months ago I got really interested in embedded software, so decided it would be neat to port my emulator to a STM32 MCU and design a console around it as a learning experience, since CHIP-8 never existed as a physical system. I didn't know much about embedded software when I began, and even less about electronics, but I managed to…
2022 · github.com
- 8PL
2023 · github.com
- 9GB
Hey HN, Over the past ~1.5 years, I built an open-source FPGA retro emulation handheld that can play Game Boy, Game Boy Color, and Game Boy Advance cartridges. To my knowledge, there isn't an existing open-source FPGA emulator that can play physical cartridges like this. One of my main goals was to do all of the pieces myself, and be able to understand every component of it, so I designed my own PCB, wrote the firmware, wrote a Game Boy and Game Boy Advance emulator for the FPGA (using the Chisel HDL), and designed a 3D-printed case. I detailed the design and development process in the…
2025 · eli.lipsitz.net
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2019 · shop.pimoroni.com
- 12TA
I recently dug my Nintendo GameCube out of storage to revisit the first Animal Crossing game. Things were mostly as I remembered, but the game's heavy reliance on a clunky on-screen keyboard quickly wore my patience thin. Unwilling to accept this subpar experience, I did what any rational person would do and ordered a rare, Japan-exclusive, keyboard/controller hybrid on eBay, then used a Raspberry Pi Pico to 1. listen for keypresses and 2. send simulated controller events to the GameCube, automating typing in Animal Crossing at a Tool-Assisted Speedrun level. Of course, this oddball…
2025 · github.com
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I've been hacking away lately, and I'm now proud to show off my newest project - The Icepi Zero! In case you don't know what an FPGA is, this phrase summarizes it perfectly: "FPGAs work like this. You don't tell them what to do, you tell them what to BE." You don't program them, but you rewrite the circuits they contain! So I've made a PCB that carries an ECP5 FPGA, and has a raspberry pi zero footprint. It also has a few improvements! Notably the 2 USB b ports are replaced with 3 USB C ports, and it has multiple LEDs. This board can output HDMI, read from a uSD, use a SDRAM and much more.…
2025 · github.com
- 15NR
Just released EGG, an emulator created for teaching Assembly and microprocessors (designed to suit the needs of the Microprocessors classes, at Universidade Federal do Paraná, Brazil). The emulator will support multiple architetures in the future, but currently only RISC-V is implemented.
2024 · github.com
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2021 · youtube.com
- 18IM
This is a little toy project of mine that lets you simulate digital logic graphs. It was inspired by Minecraft's Redstone and the Piet esolang. It's got some serious drawbacks-- you write circuits as PNGs and simulate them with a Python interface. It's slow to run and slow to experiment with. And it is certainly difficult to use for people with any kind of color blindness. But despite that, I hope this can still be a fun toy!
2022 · github.com
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2025 · github.com
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- 21IM
Just a toy, showing how easy it is to leverage built-in Emacs features (most notably Artist mode, which provides a set of functions for creating ASCII-art vector graphics) and things like trigonometric functions and timers to create something nice. A short blog post mentioning some background (and showing a screenshot): https://mbork.pl/2025-09-08_Emacs_Artist_clock#.
Sep 2025 · gitlab.com
- 22SC
Hello HN! I'm excited to reveal Surfboard to you all! Surfboard is a widget that enables you to share your Arduino code as a URL link or HTML embed. People interacting with your widget can edit, compile and upload the code into their Arduino board--right in the browser. Surfboard supports over 170 boards and over 4,200 libraries, so rest assured you can share quite a large variety of Arduino projects here :) More on tech stack: - Backend is Node.js and Go with MongoDB database, with most of the codebase a derivative of the Duino App project (https://duino.app/) - React…
2022 · sfbd.is
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