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PCA9685 16-Channel 12-Bit 5-Amp High-Current N-Channel PWM Pulse Width Modulation Light Dimmer with IoT Interface - store.ncd.io
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16 Channel 12 bit PWM/Servo Driver I2C interface PCA9685 module for arduino or Raspberry pi shield module servo shield|3D Printer Parts & Accessories| - AliExpress
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