Raspberry Pi L298N motor controller: Difference between revisions
From wikiluntti
| Line 12: | Line 12: | ||
Shared ground. | Shared ground. | ||
* L298N VCC → External 5-12V power supply (positive) | |||
* L298N GND → Power supply ground AND Pi 5 ground pin | |||
* L298N 5V → Pi 5 5V pin (only if using 12V motor supply) | |||
Control Connections: | |||
* L298N IN1 → Pi 5 GPIO 18 | |||
* L298N IN2 → Pi 5 GPIO 19 | |||
* L298N IN3 → Pi 5 GPIO 20 | |||
* L298N IN4 → Pi 5 GPIO 21 | |||
* L298N ENA → Pi 5 GPIO 12 (PWM) | |||
* L298N ENB → Pi 5 GPIO 13 (PWM) | |||
Motor Connections: | |||
* OUT1/OUT2 → Motor A terminals | |||
* OUT3/OUT4 → Motor B terminals | |||
== Python == | == Python == | ||
Latest revision as of 15:55, 12 November 2025
Introduction
RPi is powered by 5V, but on board it is reduced to GPIO 3.3V (GPIOs) and processors and memory (1.8V).
If needed to connect a 5V sensor to Pi, first reduce the 5V to 3.3V by using eg 2 resistors as voltage divider.
However, note that in the digital line the 1 bit is at __V.
L298N
Connections
Shared ground.
- L298N VCC → External 5-12V power supply (positive)
- L298N GND → Power supply ground AND Pi 5 ground pin
- L298N 5V → Pi 5 5V pin (only if using 12V motor supply)
Control Connections:
- L298N IN1 → Pi 5 GPIO 18
- L298N IN2 → Pi 5 GPIO 19
- L298N IN3 → Pi 5 GPIO 20
- L298N IN4 → Pi 5 GPIO 21
- L298N ENA → Pi 5 GPIO 12 (PWM)
- L298N ENB → Pi 5 GPIO 13 (PWM)
Motor Connections:
- OUT1/OUT2 → Motor A terminals
- OUT3/OUT4 → Motor B terminals
Python
Install the GPIO package
sudo apt install python3-rpi.gpio
