Motor

DC Gear Motor with L298N Driver

Classic brushed DC motor + dual H-bridge driver combo.

A geared DC motor paired with the ubiquitous L298N dual H-bridge driver — the standard starting point for wheeled robots.

Specifications

Motor	Brushed DC gear motor — the common yellow "TT motor" spec is ~200 RPM at 6V, ~1:48 gear ratio
Driver	L298N dual H-bridge, 2A per channel
Control	One direction pair (IN1/IN2) plus one PWM speed pin (ENA) per motor
Supply	Motor voltage 5V-35V DC on the driver's VMS terminal, separate from the MCU's own power

Pinout

Pin	Name	Description
1	OUT1 / OUT2	Motor leads — connect directly to the L298N's motor A output terminal, polarity sets default spin direction
2	ENA	PWM input on the driver — controls motor speed
3	IN1 / IN2	Direction inputs on the driver — set which way current flows through the motor
4	12V / GND	Motor supply voltage and ground, into the driver's VMS/GND terminal

This entry covers the motor + L298N pairing as a unit — see the L298N Driver page for the full breakdown of every driver pin if you're wiring more than one motor.

Board Integration

Wiring

Component pin	Board pin	Note
ENA	D9 (PWM)	Controls speed via analogWrite — remove the ENA jumper on the L298N board if it has one, or PWM won't take effect
IN1	D7
IN2	D8
12V / GND	Separate motor power supply — GND shared with the Arduino	Do not power the motor from the Arduino's 5V pin — L298N motor supply is a separate higher-current rail

Code

C++

Notes

Motor supply grounds and logic grounds must be tied together (Arduino GND to L298N GND), even though the 12V motor rail is otherwise separate — skipping this common ground is a frequent reason for erratic or no motor response.