L298N with Teensy 4.1

Wiring for the L298N dual motor driver on the Teensy 4.1 (MIMXRT1062DVJ6B, 3.3 V logic), chosen with the same pin rules BoardPilot uses: default buses first, and no pins that are used for flash, USB, the debugger or booting.

Wiring

L298N pin	Role	Teensy 4.1 pin	Notes
ENA	Input to the part	2 (GPIO_EMC_04)	Motor A speed (PWM). Remove the jumper to use it
IN1	Input to the part	3 (GPIO_EMC_05)	Motor A direction
IN2	Input to the part	4 (GPIO_EMC_06)	Motor A direction
IN3	Input to the part	5 (GPIO_EMC_08)	Motor B direction
IN4	Input to the part	6 (GPIO_B0_10)	Motor B direction
ENB	Input to the part	9 (GPIO_B0_11)	Motor B speed (PWM). Remove the jumper to use it
12V	Not wired to the board	not connected	Motor supply 5 to 35 V from a separate supply
GND	Ground	G
5V	Not wired to the board	not connected	5 V output of the on-board regulator (jumper on, supply up to 12 V)
OUT1	Not wired to the board	not connected	Motor A
OUT2	Not wired to the board	not connected	Motor A
OUT3	Not wired to the board	not connected	Motor B
OUT4	Not wired to the board	not connected	Motor B

Check before you power it on

Motors, servos, relays and LED strips can draw more current than the Teensy 4.1’s pins or USB can give. Power them separately and connect the grounds together.

Test code (Arduino)

// Motor A: ENA = speed (PWM), IN1/IN2 = direction. Remove the ENA jumper on the module.
void setup() {
  pinMode(3, OUTPUT);
  pinMode(4, OUTPUT);
  pinMode(2, OUTPUT);
}

void loop() {
  digitalWrite(3, HIGH);
  digitalWrite(4, LOW);
  analogWrite(2, 180);  // about 70% speed
  delay(2000);
  analogWrite(2, 0);    // stop
  delay(1000);
}

Arduino board: teensy:avr:teensy41. Press the white program button once if the upload waits for the board.

Questions

Which Teensy 4.1 pins do I use for the L298N?

ENA → 2 (GPIO_EMC_04), IN1 → 3 (GPIO_EMC_05), IN2 → 4 (GPIO_EMC_06), IN3 → 5 (GPIO_EMC_08), IN4 → 6 (GPIO_B0_10), ENB → 9 (GPIO_B0_11), GND → G.

Does the L298N work with the Teensy 4.1 at 3.3 V?

Yes: the L298N runs at 5 V and the Teensy 4.1 uses 3.3 V signals, so no level shifting is needed.

BoardPilot checks this wiring in 3D as you build it, and finds crossed or missing wires on the real board.

Download BoardPilot

Full Teensy 4.1 pinout · L298N dual motor driver: all pins and data

The L298N on other boards

ESP32 DevKit Arduino Mega 2560 R3 Arduino Nano Arduino Uno R3 WeAct Black Pill STM32F411CE ESP32-C3-DevKitM-1 ESP32-S3-DevKitC-1 Nordic nRF52840 DK NUCLEO-F401RE Raspberry Pi Pico 2 Raspberry Pi Pico W Raspberry Pi Pico

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