SimDuino — Arduino simulator in your browser

v0.14.0-preview · preview

Arduino simulator, in the browser.

R rotate · D duplicate · Del remove · ⌘/Ctrl+Z undo · click two pins to wire (snaps within 14px) · Esc cancel · ⌘/Ctrl+scroll to zoom

diagram.json Wokwi-inspired diagram format. Edit the parts & connections then click Apply.

Arduino C++

// Blink — classic SimDuino starter
#define LED 13

void setup() {
  pinMode(LED, OUTPUT);
  Serial.begin(9600);
  Serial.println("SimDuino ready.");
}

void loop() {
  digitalWrite(LED, HIGH);
  Serial.println("LED ON");
  delay(500);
  digitalWrite(LED, LOW);
  Serial.println("LED OFF");
  delay(500);
}

Serial Monitor 9600 · idle