16 Channel 12-bit PWM/Servo Driver-I2C interface-PCA9685

T121B412

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16 Channel 12-bit PWM/Servo Driver-I2C interface-PCA9685

Feature :

  • 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

PCA9685 datasheet :

http://www.adafruit.com/datasheets/PCA9685.pdf

dokumentasi :

https://learn.adafruit.com/16-channel-pwm-servo-driver/overview

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