CommunicationadvancedArduino Uno
[STM32 + ESP32] GPIO Sync
Cross-board demo: the STM32 Blue Pill toggles PA1 (wired to ESP32 GPIO4). The ESP32 reads GPIO4 and prints its state + mirrors it onto GPIO2. Two QEMU backends (libqemu-arm + libqemu-xtensa) talking over a wire.
What you'll simulate
- ✓Real Arduino Uno emulation — cycle-accurate, no hardware needed
- ✓Interactive simulation canvas
- ✓Serial Monitor included — see output in real time