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u/LeadingFun1849

r/CardPuter r/electronics r/esp32projects
Image 1 — I made the first M5Stack CardPuter emulator , runs in the browser, no install
Image 2 — I made the first M5Stack CardPuter emulator , runs in the browser, no install
▲ 181 r/esp32projects+1 crossposts

I made the first M5Stack CardPuter emulator , runs in the browser, no install

I've been working on a browser-based simulator "Velxio", and I just got the CardPuter ADV working in it. You write your Arduino code in the editor and the whole device runs live , display, inputs, serial console

It uses real ESP32-S3 emulation, so your code runs the way it would on the actual hardware. The on-board display is rendered in real time.

Here's a working demo you can try right now on the online version:
https://velxio.dev/example/cardputer-adv-m5-display

Honest note on how it was built: I used AI to speed up parts of the development, but nothing shipped without being tested on real hardware and cross-checked against my own experience as a computer engineer. Emulation is only trustworthy when you verify it against the actual device .I did that on every step

u/LeadingFun1849 — 3 days ago
▲ 39 r/electronics

Velxio: I built an open-source embedded systems simulator with Arduino, ESP32, Raspberry Pi ,AI, SPICE, and retro CPUs

I've been building an open-source embedded systems simulator called Velxio.

It supports:

  • Arduino, ESP32, Raspberry Pi Pico and Raspberry Pi emulation
  • Multi-board systems communicating over UART, I2C and SPI
  • SPICE-based analog circuit simulation with ngspice
  • Retro CPUs including Z80, Intel 8080, 4004 and 8086
  • MicroSD and ePaper emulation
  • An AI agent that can generate circuits and firmware from natural language

Everything runs directly in the browser. No installation, no account required.

You can try it at http://velxio.dev

u/LeadingFun1849 — 2 months ago