WSAL15364 – Motor Driver HAT/en

Documentation notice: This technical documentation was independently rewritten from an archived supplier source. Check technical details and commands against the product version and manufacturer documentation before use.

Summary

The Motor Driver HAT adds an I2C-controlled drive stage to a Raspberry Pi. It includes a PCA9685 (12-bit PWM) and a TB6612FNG dual H-bridge, an MP1854 5V regulator, and a VIN input stage for 6–12 V. Five address jumpers allow stacking up to 32 modules.

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WSAL15364 – Motor Driver HAT for Raspberry Pi, I2C Interface

Technical overview

Based on the Raspberry Pi form factor; fits Zero/Zero W/Zero WH/2B/3B/3B+.
I2C control with five address jumpers (A0–A4); default address 0x40, configurable in range 0x40–0x5F; up to 32 modules can be stacked.
PCA9685 provides 16 channels at 12-bit resolution; PWM frequency range 40 Hz to 1000 Hz.
TB6612FNG: dual H-bridge driver for two DC motors (A/B).
Power input via VIN_USER: recommended 6–12 V; the MP1854 theoretically accepts 4.5–28 V, but the motor supply logic limits the operating range to 6–12 V.
MP1854 produces stable 5 V for the Raspberry Pi; RT9193-33 supplies 3.3 V for logic and PWM signals.
Pinout: 5V, 3V3, GND, SDA, SCL, VIN, A1/A2, B1/B2.
For Raspberry Pi, enable I2C via raspi-config; restart required afterwards.
Bullseye users must replace “apt-get” with “apt”; only Python 3 is supported.
Sample code is provided as a 7z archive; after unpacking into the target directory, run the demo (make + ./main or python3 main.py).

Commands and examples – verify before use:

sudo raspi-config
sudo reboot
wget http://www.airspayce.com/mikem/bcm2835/bcm2835-1.70.tar.gz
tar zxvf bcm2835-1.70.tar.gz
cd bcm2835-1.70/
sudo ./configure
sudo make && sudo make check && sudo make install
sudo apt-get install wiringpi
wget https://project-downloads.drogon.net/wiringpi-latest.deb
sudo dpkg -i wiringpi-latest.deb
gpio -v
sudo apt-get update
sudo apt-get install python3-pip
sudo pip3 install RPi.GPIO
sudo apt-get install python3-smbus
sudo apt-get install p7zip
wget https://files.waveshare.com/upload/9/9a/Motor_Driver_HAT_Code.7z
7zr x Motor_Driver_HAT_Code.7z -r -o./Motor_Driver_HAT_Code
sudo chmod 777 -R Motor_Driver_HAT_Code
cd Motor_Driver_HAT_Code/Raspberry\ Pi/c/

Notes and version constraints

The source is unverified supplier material; all statements should be verified against original datasheets before use.
Exact regulator current draw and maximum continuous load per motor are not specified – verify before sizing.
Address configuration via jumpers requires soldering/resistor changes; watch for collisions when stacking.
The sample archive comes from files.waveshare.com; integrity and version should be checked before execution.
On Bullseye, replace “apt-get” with “apt”; older systems may have different package names.
The stated voltage and frequency ranges apply only under the described conditions; deviations require manual confirmation.

Source and revision record

Motor Driver HAT - Waveshare Wiki
Source revision: 108200
Captured: 2026-08-31T02:47:30+00:00
SHA-256: 0ec811becac759eeb57541801a4e98871e5b74f5283bcdffb3bf46983020d9e4