Specifications:
- This product comes with a fully tested and assembled breakout as well as
- 4 pieces of 3×4 male straight header (for servo/LED plugs),
- 2-pin terminal block (for power) and
- 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. You may also use right-angle 3×4 headers?
- 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 3×4 headers & terminal block): 9grams
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Descriptions:
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 perhaps you want to drive a lot of LEDs with precise PWM output. You realize your microcontroller has a limited number of PWM outputs, what now? 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 I?C-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, it’s 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 I?C 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?slightlywider 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
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Package Including:
3 x PCA9685 16 Channel 12-Bit PWM Servo Motor Driver IIC Module
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