IO Expansion HAT (Gravity) for Raspberry Pi / Pi Zero

Ease the Raspberry-Pi prototyping with Analog and PWM capable hat - compatible with Gravity boards

This IO Expansion HAT provides easy access to digital, analog, I2C (also named IIC), PWM, UART and SPI ports of your Raspberry-Pi with an pretty easy to use connectors.
Please note that it brings 4 analog input to the Pi + 4 PWM outputs thanks to the STM32 microcontroler present on this hat.

Following the Gravity connexion principles, all connexions points are:

• provided at 2.54mm spacing connector
• with power and ground
• with easy to read labelling

This small board is perfect for Raspberry Pi Zero W (can also be used with standard Raspberry-Pi). The board leads out the I/O ports on Raspberry Pi I2C/UART/SPI but also breakout several Raspberry-Pi's digital I/O GPIO16~GPIO25.

The STM32 communicates with the Raspberry-Pi via the I2C bus. The DFRobot libraries allows the user to conveniently control the PWM output or read ADC input.

Content

For each order, you will receive a IO Expansion HAT. Raspberry-Pi, cables, prototyping board not included.

Features

• 22 Ports:
  
  • 4x PWM ports,
  • 4x Analog ports,
  • 10x Digital ports,
  • 1x SPI,
  • 2x I2C ports,
  • 1x UART
• Power Supply: 5V
• External Power Supply: 6-12V for PWM/Servo. Common servos are using 5V.
• On-board MCU(STM32), provide 12 bit 8 channel ADC (connector to Raspeberry-Pi via I2C)
• Multiple Servos Controlling
• Compatible with Raspberry Pi 4 Model B/Raspberry Pi 3B+/2 and Raspberry Pi Zero/ Zero W
• Device Address: 0x10 (on I2C bus)
• Dimension: 65x30mm