SparkFun Servo pHAT for Raspberry Pi

Sparkfun ElectronicsSKU: RB-Spa-1745
Manufacturer #: DEV-15316

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  • SparkFun Servo pHAT for Raspberry Pi
  • Controls up to 16 servo motors
  • Is I2C-capable, allowing to save GPIO pins
  • Can be powered through USB-C connector

The SparkFun Servo pHAT for Raspberry Pi allows your Raspberry Pi to control up to 16 servo motors in a straightforward and uncomplicated manner via an I2C connection. Thanks to its I2C capabilities, this PWM HAT saves the Raspberry Pi's GPIO pins, allowing you to use them for other purposes.

The Servo pHAT also adds a serial terminal connection, which will allow you to bring up a Raspberry Pi without having to hook it up to a monitor and keyboard. SparkFun has provided a Qwiic connector for easy interfacing with the I2C bus using the Qwiic system, and a 4-pin header specifically for connecting to the Sphero RVR.

SparkFun Servo pHAT for Raspberry Pi - Click to Enlarge

Power to the SparkFun Servo pHAT can be supplied through USB-C connector. This will power either the servo motors only, or power the servo motors as well as the Raspberry Pi that is connected to the HAT. They switched to USB-C to allow you to bring more current to your servos than ever before. This USB-C connector can also be used to hook up the Pi via serial port connection to avoid having to use a monitor and keyboard for setting up the Pi.

SparkFun Servo pHAT for Raspberry Pi - Click to Enlarge

To supply power only to the servo power rail (and not the Pi's 5V power rail), you just need to cut a small trace on the isolation jumper. Doing this allows you to drive heavier loads coming from multiple or larger servos. Also, power protection circuits have been added to the design, to avoid damage to power sources.


This HAT includes headers to connect to a Raspberry Pi, so there is no soldering required to get up and running quickly.

  • 1 x SparkFun Servo pHAT for Raspberry Pi

  • PWM channels: 16
  • Controllable over I2C
  • Qwiic connector
  • RVR header: 4 pin connection to Sphero RVR
  • Connector: USB-C
  • GPIO: 40-pin header for connection to Raspberry Pi
  • CH340C USB Serial SOIC16
  • Updated logic level conversion circuitry
  • Power protection circuits

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