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Description
16-Channel 12-bit PWM-Servo Driver - I2C interface - PCYou want to make a cool robot, maybe a hexapod walker, or maybe just a piece of art with a lot of moving parts. Or maybe you want to drive a lot of LEDs with precise PWM output. Then you realize that your microcontroller has a limited number of PWM outputs! What now? You could give up OR you could just get this handy PWM and Servo driver breakout. When we saw this chip, we quickly realized what an excellent add on this would be. Using only two pins,
You want to make a cool robot, maybe a hexapod walker, or maybe just a piece of art with a lot of moving parts. Or maybe you want to drive a lot of LEDs with precise PWM output. Then you realize that your microcontroller has a limited number of PWM outputs! What now? You could give up OR you could just get this handy PWM and Servo driver breakout.
When we saw this chip, we quickly realized what an excellent add-on this would be. Using only two pins, control 16 free-running PWM outputs! You can even chain up 62 breakouts to control up to 992 PWM outputs (which we would really like to see since it would be glorious)
- It's an i2c-controlled PWM driver with a built in clock. That means that, unlike the TLC5940 family, you do not need to continuously send it signal tying up your microcontroller, its completely free running!
- It is 5V compliant, which means you can control it from a 3.3V microcontroller and still safely drive up to 6V outputs (this is good for when you want to control white or blue LEDs with 3.4+ forward voltages)
- 6 address select pins so you can wire up to 62 of these on a single i2c bus, a total of 992 outputs - that's a lot of servos or LEDs
- Adjustable frequency PWM up to about 1.6 KHz
- 12-bit resolution for each output - for servos, that means about 4us resolution at 60Hz update rate
- Configurable push-pull or open-drain output
- Output enable pin to quickly disable all the outputs
We wrapped up this lovely chip into a breakout board with a couple nice extras
- Terminal block for power input (or you can use the 0.1" breakouts on the side)
- Reverse polarity protection on the terminal block input
- Green power-good LED
- 3 pin connectors in groups of 4 so you can plug in 16 servos at once (Servo plugs are slightly wider than 0.1" so you can only stack 4 next to each other on 0.1" header
- "Chain-able" design
- A spot to place a big capacitor on the V+ line (in case you need it)
- 220 ohm series resistors on all the output lines to protect them, and to make driving LEDs trivial
- Solder jumpers for the 6 address select pins
This product comes with a fully tested and assembled breakout as well as 4 pieces of 3x4 male straight header (for servo/LED plugs), a 2-pin terminal block (for power) and a piece of 6-pin 0.1" header (to plug into a breadboard). A little light soldering will be required to assemble and customize the board by attaching the desired headers but it is a 15 minute task that even a beginner can do
Documents
- Dimensions (no headers or terminal block) 2.5" x 1" x 0.1" (62.5mm x 25.4mm x 3mm)
- Weight (no headers or terminal block): 5.5grams
- Weight (with 3x4 headers & terminal block): 9grams
- PCA9685 datasheet
Tutorials
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4.1 ★★★★★
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Product Reviews
★★★★★ 2
No spatulas ?
Size: Tub 8 Ounce
Seems ok so far. We will see. A little disappointed that it didn’t come with the spatulas everyone pictured in the reviews.
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Reviewed in the United States on May 17, 2026
★★★★★ 5
easy to use spatula
This two pack of baby spatulas are easy to use and easy to clean. You don't have to worry about getting your fingers sticky or messy when applying creams to your baby. The suction cup on the end is a nice touch so that you can stand these up straight and not get another surface dirty or sticky. Definitely recommend this item to new parents!
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Reviewed in the United States on June 11, 2025
★★★★★ 5
Herblov Turmeric Soap Bar for Face & Body
great soap for the face; helps to decreased oily face. my oily face is completely restored. thanks to this soap. highly recommend!
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Reviewed in the United States on November 22, 2025
★★★★★ 5
Soap bar tumeric
This was the best soap ever. Did not turn my skin orange, (which I was little afraid of) and left it feeling nourished. Used in the shower as a body soap and can't recommend it enough.
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Reviewed in the United States on August 6, 2024
★★★★★ 4
I loved it
The texture is amazing, too expensive for its size and it doesn’t last.
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Reviewed in the United States on June 27, 2021
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