DRV2605L haptic motor driver (I2C) with ESP32

Supply 3.3-5 V Bus I2C I2C address 0x5A

Pins and ESP32 wiring

Pin	Role	ESP32 pin	Notes
VIN	Power	3V3	3.3 V or 5 V
GND	Ground	GND
SCL	I2C clock (SCL)	D22
SDA	I2C data (SDA)	D21
IN	Input (the ESP32 drives it)	D25	Optional trigger or PWM / analog input
MOTOR+	Not wired to the ESP32	—	Vibration motor (ERM) or LRA +
MOTOR-	Not wired to the ESP32	—	Vibration motor (ERM) or LRA -

Suggested wiring for the 30-pin ESP32 DevKit, avoiding flash, input-only and strapping pins. BoardPilot checks it for you as you wire.

Starter code (Arduino)

#include <Wire.h>

void setup() {
  Serial.begin(115200);
  Wire.begin(21, 22);  // SDA = GPIO 21, SCL = GPIO 22
  Wire.beginTransmission(0x5A);
  bool found = Wire.endTransmission() == 0;
  Serial.println(found ? "DRV2605L haptic motor driver (I2C) found at 0x5A" : "Not found: check power, GND and SDA/SCL");
}

void loop() {}

Sources

Texas Instruments DRV2605L datasheet, I2C address 0x5A; supply 2 to 5.2 V; built-in effect library
Adafruit DRV2605L Haptic Controller guide, Pinouts

Try it in 3D in BoardPilot

BoardPilot Part data (JSON)

Part data: CC BY 4.0, free to reuse with credit to BoardPilot.

DRV2605L haptic motor driver (I2C) with ESP32

Pins and ESP32 wiring

Starter code (Arduino)

Sources

Try it in 3D in BoardPilot

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