> **Source:** Core Electronics is an Australian maker-electronics retailer and manufacturer based in Newcastle, NSW, run by a team of makers and educators. We design and manufacture our own product lines (PiicoDev, CE originals) and are official retailers for iconic maker and industrial brands including Raspberry Pi, Arduino, Adafruit, SparkFun and DFRobot. Orders ship Australia-wide from our Newcastle warehouse. Prices are in AUD and include GST. Pricing, stock and dispatch on this page are generated from the store's live catalog. Full machine-readable index: https://core-electronics.com.au/llms.txt

# SparkFun USB-C Host Shield

**Type:** Product page · **SKU:** DEV-21247 · **Brand:** [Sparkfun](https://core-electronics.com.au/brands/sparkfun-australia)
**Page:** https://core-electronics.com.au/sparkfun-usb-c-host-shield.html ([markdown](https://core-electronics.com.au/sparkfun-usb-c-host-shield.html.md))

The SparkFun USB Host Shield contains all of the digital logic and analog circuitry necessary to implement a USB peripheral/host controller with Arduino...

## Pricing

- **Price:** $80.20 (inc GST) — $72.91 AUD, exc GST
- **Quantity discounts:** 5+ $70.72 (exc GST) · 25+ $69.26 (exc GST) · 100+ $66.35 (exc GST)

## Availability & dispatch

- Available with a lead time — expect dispatch between Aug 19 and Aug 25.

## How to buy

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- **Checkout** is completed on-site and includes a captcha at the payment step. Share the cart link; checkout takes it from there.
- **Search the catalogue:** `https://core-electronics.com.au/search/{query}.md` (URL-encode the query; pages 2-3 at `search/{query}/{page}.md`; `search.md?q=` also works)
- **Payment methods, purchase orders, policies and contact details:** https://core-electronics.com.au/llms.txt
## Description

The SparkFun USB-C Host Shield contains all of the digital logic and analog circuitry necessary to implement a USB peripheral/host controller with your Arduino. This means you could use your Arduino to interface with and control any USB 2.0 compatible device - thumb drives, digital cameras, BT dongles, and much more!

This version updates the USB Type-A connector to a USB-C connector and provides users with the option to power the shield from the `5V` or `VIN` pins. The USB-C female connector also supplies 5V as any normal USB *(downward facing)* port would.

A four-wire serial interface is used to communicate with the host controller chip, so the shield connects the Arduino's hardware SPI pins (D10-13) to the MAX3421E. All SPI signals are sent through a hex converter to step them down to 3.3V.

 Get Started with the SparkFun USB-C Host Shield Guide ### Features

**MAX3421E USB Controller**

- Provides USB Host and Peripheral Functionality
    - USB 2.0 Specification: 12Mbps *(full-speed)*
- Operating Voltage: 3.0 - 3.6V
- Supply Current:
    - 45mA *(max)*
    - 8.7mA *(idle)*
    - 30 - 60µA *(suspend)*
- SPI Clock Speed: 0 - 26MHz
- Operating Temperature: -40 - +85°C

**Arduino Shield**

- Arduino R3 Footprint
    - SPI Pins:
        - SCK: `D13`
        - POCI: `D12`
        - PICO: `D11`
        - CS: `D10`
    - INT: `D9`
    - GPX: `D8`
    - RST: `D7`
- Reset Button *(for Arduino Board)*
- Switches:
    - On/Off
    - Power Input: `VIN` or `5V`
- USB-C Female Connector
    - Configured for Host Applications
    - Supply Current:
        - Limited by Power Input
        - CC1 and CC2 *(56kO pull-ups)*

### Documents

- [Schematic](https://core-electronics.com.au/attachments/localcontent/schematic_158241adeca.pdf)
- [Eagle Files](https://core-electronics.com.au/attachments/localcontent/eagle_files_22485bda1d5.zip)
- [Board Dimensions](https://core-electronics.com.au/attachments/localcontent/dimensions_21332399b9e.pdf)
- Hookup Guide
- Arduino Library: [USB Host Rev. 2.0](https://github.com/felis/USB_Host_Shield_2.0)
- [MAX3421E Datasheet](https://core-electronics.com.au/attachments/localcontent/MAX3421E_2607135891a.pdf)
    - [Errata\_MAX3421E](https://core-electronics.com.au/attachments/localcontent/Errata_MAX3421E_3614275940a.pdf)
    - [Programming Guide](https://core-electronics.com.au/attachments/localcontent/AN3785_720290c12c7.pdf)
    - [Tutorial - Turn any video game controller into a USB mouse](https://core-electronics.com.au/attachments/localcontent/TUT5884_59406ddf3ad.pdf)
- [GitHub Hardware Repo](https://github.com/sparkfun/SparkFun_USB-C_Host_Shield)

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/D/E/DEV-21247-1.jpg)