CommunicationintermediateArduino Uno
[STM32 + Arduino] Serial Link
Cross-board UART: the STM32 Blue Pill sends a "PING n" message over USART1 (PA9 TX) into the Arduino Uno RX (pin 0). The Uno reads each line and blinks LED 13 + echoes "[Uno] got: ..." to its own Serial Monitor. Watch both monitors.
What you'll simulate
- ✓Real Arduino Uno emulation — cycle-accurate, no hardware needed
- ✓Interactive simulation canvas
- ✓Serial Monitor included — see output in real time