Cirkit Designer's BlogProduct updates, feature announcements, and engineering insights from the Cirkit Designer team.https://blog.cirkitdesigner.com/We Built an ESP32-S3 Simulator That Runs Real Firmware in the Browserhttps://blog.cirkitdesigner.com/blog/2026-04-10-esp32-s3-simulator/https://blog.cirkitdesigner.com/blog/2026-04-10-esp32-s3-simulator/Cirkit Designer now includes an instruction-accurate ESP32-S3 simulator written in Rust/WASM. It boots real firmware locally in your browser with support for GPIO, SPI, I2C, NeoPixels, Wi-Fi, and more.Fri, 10 Apr 2026 00:00:00 GMT