DC Motor & PWM Controller Simulator

Watch the speed (PWM Bar) and direction (Arrow) change instantly!

3D Motor Simulation

Time: 0s

Brake (0)

PWM
0/255

Code Editor — Use `analogWrite(pin, 0-255)` for power.

Status: Idle

Console Output

Motor Status (Pins 9, 10, 11)

Current PWM Value

0/255

Direction

Brake

Pin Modes

Pin 9 (PWM) UNKNOWN

Pin 10 (IN1) UNKNOWN

Pin 11 (IN2) UNKNOWN

Examples

Help & Instructions

How to Use This Simulator

This tool lets you test Arduino-style motor control code instantly.

**Load:** Select an example from the dropdown menu and click 'Load' to see pre-written code.
**Edit:** Write your own setup() and loop() code, using familiar commands like analogWrite and digitalWrite.
**Run:** Click the '▶ Run' button to execute your code and see the motor react immediately in the 3D viewer.
**Stop:** Click '⏹ Stop' to immediately halt the motor and code execution at any time.

Core Concepts: PWM & H-Bridge
This simulator uses three pins: one for **Power/Speed** (**PWM**, pin 9) and two for **Direction** (**IN1**, **IN2**, pins 10 and 11).
Speed Command

analogWrite(9, value): Sets the motor power/speed. `value` must be between **0** (stopped) and **255** (full speed). Watch the **PWM Gauge**!

Direction Control (IN1=10, IN2=11)

**Forward (CW)**: digitalWrite(10, HIGH) and digitalWrite(11, LOW)

**Reverse (CCW)**: digitalWrite(10, LOW) and digitalWrite(11, HIGH)

**Brake/Coast**: digitalWrite(10, LOW) and digitalWrite(11, LOW) (or both HIGH)

Standard Commands

delay(ms) — Pauses execution (use `await delay(...)`).

pinMode(pin, mode) — Declares the pin as OUTPUT or INPUT.

Serial.print()/Serial.println() — Maps to the simulator's console.

console.log(msg) — Outputs to the console.

Supports void setup() and void loop() for continuous tasks.