Esp32sim runs ESP32 firmware in browser
The gist
GitHub project esp32sim, an open-source ESP32 emulator, runs real firmware in the browser with no hardware.
It lets developers test ESP32 code without buying boards; commenters compare it with Wokwi.
How it unfolded
- Oct 8, 2026 –18, 2026Over 11 days the repository records +165 stars, +3 forks and 35 merged pull requests.
- Oct 17, 2026A 'Show HN' post titled 'Esp32sim – Run ESP32 firmware in the browser' is shared on Hacker News, linking the github.com/mikroverk/esp32sim repository. The repository appears on Trendshift and gains +116 stars that day.
- Oct 18, 2026The Show HN post is dated Sun, 18 Oct 2026 02:03:22 GMT, and the repository gains +47 stars that day. The Silicon SNR newsletter covers the emulator among seven stories picked from 38, and a YouTube Short on esp32sim is published.