Raspberry Pi Pinout

Servo Driver HAT

Standard Raspberry Pi 40PIN GPIO extension header, supports Raspberry Pi series boards. I2C controlled, using only 2 pins, up to 32 different addresses, enabling to stack the same number of boards. They are selectable by desoldering the resistances and solder on pins A0..A4.

Notes

  • The PCA9685 A5 pin is soldered to GND so you can't use the other 32 possible addresses offerred by PCA9685.
  • Also the i2c 0x70 address is present, if you run i2cdetect -y 1. That's because the PCA9685 uses that address to send data to all the devices of the same model.

Features

  • stackable, up to 32x.
  • Up to 16-Channel servo/PWM outputs, 12-bit resolution for each channel (4096 scales).
  • Integrates 5V regulator, up to 3A output current, can be powered from battery through VIN terminal.
  • Standard servo interface, supports common used servo such as SG90, MG90S, MG996R, etc.
  • Available development resources and manual on wiki (examples in python like Bluetooth/WiFi remote control).

Details

  • Made by Waveshare
  • pHAT form-factor
  • Needs 5v and 3v3 power
  • Uses 2 GPIO pins
  • Communication over I2C
  • 0x40: PCA9685 (Alt: 0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48, 0x49, 0x4A, 0x4B, 0x4C, 0x4D, 0x4E, 0x4F, 0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58, 0x59, 0x5A, 0x5B, 0x5C, 0x5D, 0x5E, 0x5F)
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Waveshare Servo Driver Hat