This looks interesting. How are you handling timing between the firmware execution and the SPICE solver? Is it synced to wall clock or do you step both together?

Pretty cool project! if you're checking it out, try one of the built-in examples and hit "Compile + Play". It runs immediately, no setup required

Thanks! Yeah, that’s probably the easiest way to get started, just load an example and hit “Compile + Play”.

I tried to make it as close to zero-setup as possible so people can just jump in and experiment

Found this while looking for ESP32/QEMU browser implementations. The multi-board sync between different architectures (AVR vs Xtensa) is what caught my eye. Pretty impressive use of WebAssembly

Creator here! Just saw this was posted. I've been working on the 2.0 release to move beyond simple AVR emulation. Integrating QEMU for the ESP32 and Pi 3 (Linux) was a massive challenge, especially maintaining sync between the different emulators in a single browser tab.

The main issue is that ESP32 uses the Xtensa architecture, which is significantly more complex than something like an ATmega328

One thing that’s been particularly frustrating is trying to find complete documentation for Xtensa. I’ve looked around quite a bit, and it feels like there isn’t a fully open, detailed spec available. Most of what exists is either partial, behind NDA, or spread across different sources.

Copilot's AI is far inferior to the agents in Claude Cowork or OpenClaw. And I think it still uses the OpenAI GPT 4o . Microsoft also put AI everywhere, and with very poor quality.

Decent models cost money, is the reality of it.

“less copilot” is because they can’t charge for it, so the model is crap, so no-one wants it, so they are removing it where it’s useless.

They won’t be the last.

I wonder if MS regrets pouring so much money into OpenAI.

This is amazing!

Thanks! I'm glad you like it