# IO Expansion HAT for Pi Zero/Zero W

**Type:** Product page · **SKU:** DFR0604 · **Brand:** [DFRobot](https://core-electronics.com.au/brands/dfrobot-australia)
**Page:** https://core-electronics.com.au/io-expansion-hat-for-pi-zero-zero-w.html ([markdown](https://core-electronics.com.au/io-expansion-hat-for-pi-zero-zero-w.html.md))

This DFRobot IO Expansion HAT provides Digital, Analog, I2C, PWM, UART and SPI port to meet all your needs. It is pretty small and perfectly suitable for Raspberry...

## Pricing

- **Price:** $18.10 (inc GST) — $16.45 AUD, exc GST
- **Quantity discounts:** 6+ $15.64 (exc GST) · 12+ $14.97 (exc GST)

## Availability & dispatch

- Available with a lead time — expect dispatch between Aug 19 and Aug 24.

## Description

**Introduction**  This DFRobot IO Expansion HAT provides Digital, Analog, I2C, PWM, UART and SPI port to meet all your needs. It is pretty small and perfectly suitable for[ Raspberry Pi ](https://core-electronics.com.au/raspberry-pi.html?flag_category_id=184)Zero/Zero W. The board leads out the I/O ports on Raspberry Pi including IIC, UART, SPI and digital, among which the digital ports are led out via the GPIO16~GPIO25(BCM) of [Raspberry Pi,](https://core-electronics.com.au/raspberry-pi.html?flag_category_id=184) so these ports can be directly used. Besides, the PWM and Analog ports are led out through the on-board MCU STM32 that can communicate with [Raspberry Pi](https://core-electronics.com.au/raspberry-pi.html?flag_category_id=184) via IIC. So combing with our related libraries, users are able to conveniently use Raspberry Pi to control PWM output or read ADC input. ![DFR0604, Raspberry Pi ADC, Servo Driving, Expansion Hat, Raspberry Pi Hat.](https://image.dfrobot.com/image//data/DFR0604/English.png)

This expansion board supports 5V power supply and 3.3V sensor modules. Its PWM port can be powered by external power (6~12V) or Raspberry Pi (5V).

  **Features** - On-board MCU(STM32), provide 12 bit 8 channel ADC
- Multiple Servos Controlling
- Support PWM External Power Supply (6~12V)
- Support Raspberry Pi 2/3/4 Model B/B+ and Zero/ Zero W
 
  **Specification** - MCU: STM32F030
- Power Supply: Expansion Hat Power Voltage: 5V
 
 PWM External Power: 6~12V - Expansion Hat Port Output Voltage: 3.3V
- 22 Ports: 4 PWM ports, 4 Analog ports, 10 Digital ports, 1 SPI, 2 IIC ports, 1 UART
- Device Address: 0x10
- Dimension: 65\*30mm/2.56\*1.18”
 
  **Documents** 18. [Product wiki](https://wiki.dfrobot.com/I%2FO%20Expansion%20HAT%20for%20Pi%20zero%20V1.0%20%20SKU%3A%20DFR0604)
  **Parts List** - IO Expansion HAT for Pi Zero/Zero W x1

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/d/f/dfr0604-1.jpg)