Attributes

Brand	-
Category	Robotics / STEM Teaching Tools / Robots & Robotic Arms
Origin	-
Channels	16 independent PWM channels
Interface	I2C (IIC) serial interface
Address Range	Configurable from 0x40 to 0x4F
PWM Frequency	Adjustable up to 1600 Hz
Power Supply	5V logic, external 5-12V for servos
Chipset	PCA9685 high-resolution controller
Resolution	12-bit precision per channel
Compatibility	Arduino, Raspberry Pi, ESP32, Python
Dimensions	68mm x 26mm x 23mm
Weight	18 grams

6 reviews

Anonymous

Mar 27, 2026

Rating: 4/5

Great value, minor heat issue

Works exactly as described for my robotic arm project. It does get slightly warm when driving multiple high-torque servos simultaneously, but a small fan solved that. Highly recommend for the price.

Anonymous

Mar 21, 2026

Rating: 4/5

Solid performance

Using this for a camera gimbal stabilizer. The jitter is minimal, and the refresh rate is sufficient for smooth video. Would buy again.

Anonymous

Mar 17, 2026

Rating: 5/5

Reliable and compact

Fits perfectly in tight spaces within my robot chassis. The stacking capability is a huge plus if you need more than 16 channels later.

Anonymous

Mar 17, 2026

Rating: 5/5

Perfect for my hexapod robot

This board made controlling 12 servos incredibly easy. The I2C connection saves so many GPIO pins on my Raspberry Pi. Setup was straightforward with the existing libraries.

Anonymous

Mar 10, 2026

Rating: 5/5

Easy to use for beginners

I was worried about the wiring, but the documentation and community examples made it simple. My first servo array is up and running!

Anonymous

Mar 09, 2026

Rating: 5/5

Smooth motion control

The 12-bit resolution provides very smooth movement compared to standard microcontroller PWM. Essential for any serious robotics hobbyist.

5 FAQ

Q: Does this work with standard SG90 micro servos?

A: Yes, it is fully compatible with SG90, MG996, and almost any standard 3-wire PWM servo motor available on the market.

Q: Is there a library available for Python?

A: Yes, the Adafruit CircuitPython library and various GitHub repositories provide full support for Python on Raspberry Pi and other SBCs.

Q: Can I stack two of these boards together?

A: Absolutely. You can stack up to 62 boards by changing the I2C address jumpers, allowing you to control nearly 1000 servos on a single bus.

Q: Can this board be powered directly by the Raspberry Pi 5V pin?

A: While the logic power can come from the Pi, we strongly recommend using an external 5V-12V power source for the servo voltage rail to prevent brownouts when multiple servos move at once.

Q: What is the maximum current this board can handle?

A: The board itself does not limit current; it depends on your external power supply and the servo specifications. The traces are rated for moderate loads, but high-current applications should use robust wiring.

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