Breakout Board for the CH559 USB Host IC
Designed by MatzElectronics in United States of America
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What is it? CH559 USB Host Breakout Board allows you to connect USB devices like a keyboard, mouse, or game controller to any microcontroller (Arduino, AVR, M0/M4, ESP8266/ESP32, Propeller, etc.) tha…
Read More…What is it? CH559 USB Host Breakout Board allows you to connect USB devices like a keyboard, mouse, or game controller to any microcontroller (Arduino, AVR, M0/M4, ESP8266/ESP32, Propeller, etc.) that has an available serial/UART input. It breaks out every IO pin of the CH559 IC.
This device comes fully assembled with USB HID host firmware loaded.
To modify the firmware, you will need a USB-A plug to USB-A plug cable, which can be made easily by cutting/soldering two USB cables and connecting the 5V, D+, D-, and GND wires together.
Data from connected devices is streamed from the module's TX pin to the microcontroller at 400000 baud. The stream contains a lot of raw data that differs by the type of device connected, but it's organized and fairly easy to parse.
Why did I make it? The CH559 is a very cool, inexpensive microcontroller with some powerful USB capabilities. This breakout is the perfect platform for experimenting with it.
What makes it special? Unlike other USB host solutions out there, this one is both inexpensive and easy to use.
This module is largely based on the amazing work done by Bitluni and Aaron Christophel to decipher and make functional code out of the documentation for the CH559 chip by WCH.
Datasheet/Docs for the CH559 in English https://github.com/kprasadvnsi/CH559_Doc_English
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Cameron | April 11, 2024
Jeff | May 15, 2023
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