Skip to content
Circuit Simulator
Model Mage
· Circuits
Tutorials
Code
Save
Load
Clear
Model Mage
Sign In
Tutorials
✕
Load example circuit…
LED blink (microcontroller)
LDR light alarm
Temperature alarm (transistor)
Capacitor-delayed LED
Run
?
−
100%
+
⤾
✕ Close panel
Selected component
Click a component on the board to see and edit its properties here.
Microcontroller code
setup() / loop()
Text code
Block coding
void setup() { pinMode(13, OUTPUT); } void loop() { digitalWrite(13, HIGH); delay(500); digitalWrite(13, LOW); delay(500); }
setup()
runs once
loop()
repeats forever
▶ Run code
■ Stop code
Serial monitor