Adafruit 16-Channel 12-bit PWM/SERVO DRIVER - I2C interface - PCA9685

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Product Code: 91098
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Product Description
  • 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
  • Terminal block for power input
  • 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
  • Chainable design
  • A spot to place a big capacitor on the V+ line
  • 220 ohm series resistors on all the output lines to protect them, and to make driving LEDs trivial
$19.00
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    Adafruit 16-Channel 12-bit PWM/SERVO DRIVER - I2C interface - PCA9685 info

    If you want to make a robot which has lots of moving parts or if you want to control too many LEDs with PWM outputs, the limited PWM outputs of your microcontroller would be a big problem for you. To overcome this problem, the only thing you should do is to get an Adafruit 16-Channel 12-Bit PWM/Servo Driver.

    You can control 16 free-running PWM outputs with Adafruit 16-Channel 12-Bit PWM/Servo Driver  using only 2 pins. You can even chain up 62 breakouts to control up to 992 PWM outputs. It's an I2C-controlled PWM driver with a built in clock. That means that, you do not need to continuously send it signal tying up your microcontroller, it is 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.

     

    Adafruit 16-Channel 12-bit PWM/Servo Driver - General Specifications

    • 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
    • Terminal block for power input
    • 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
    • Chainable design
    • A spot to place a big capacitor on the V+ line
    • 220 ohm series resistors on all the output lines to protect them, and to make driving LEDs trivial

     

    Adafruit 16-Channel 12-bit PWM/Servo Driver - Technical Specifications

    • Driver chip: PCA9685
    • Dimensions (no headers or terminal block): 62.5mm x 25.4mm x 3mm
    • Weight (no headers or terminal block): 5.5grams
    • Weight (with 3x4 headers & terminal block): 9grams
    • This board/chip uses I2C 7-bit address between 0x60-0x80, selectable with jumpers

     

    Videos

     

    Documents

     

    PCA9685 datasheet

     

    References

     

    Adafruit Web Site

    http://www.adafruit.com/products/815

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