Firmware simulator · v0.1
Test your firmware before the boards arrive.
Pick an Arduino Uno, Nano or ESP32, drop in sensors and LEDs, write Arduino C++ and run it. Watch pins, serial output, RAM and every HTTP request your device makes.
Real AVR emulation
Uno and Nano sketches run instruction-by-instruction on an emulated ATmega328P when the compile service is connected.
Memory you can see
Static RAM, stack depth and flash size per sketch — measured on AVR, estimated on ESP32.
Environmental sensors
DHT22 and BME680 with sliders or drifting/noisy patterns to test thresholds and filters.
Network simulation
ESP32 Wi-Fi and HTTPClient with mocked responses, failure injection, or real requests to your server.