ESP8266-CH9328 Wireless HID Emulation Device

Project Description: This project is a portable device with the wireless chip ESP8266EX as the main control and the CH9328 serial port to HID chip. Its function is to simulate keyboard operation through the program.
 
Project Status: 2022-6-12 Updated to 2.0V and open source, PCB proofing and verification successful, adding chip heat dissipation area and heat dissipation holes.
 
 
 
Application scenarios of the device:
1. ESP8266 as a server opens a hotspot and waits for other wireless devices to connect to transmit data to it. After the data is parsed and judged by ESP8266, the corresponding key value is sent to CH9328 through the serial port, and then CH9328 packages the data into a standard keyboard code value and uploads it to the computer through the USB port.
 
Program burning: You need to burn the program before use, as simple as mentioned above. I provide the Arduino server program for your reference (attachment).
 
In fact, this project is used with my other open source project . If you are interested, you can take a look.
 
Device application demonstration video: esp8266ex master control CH9328 serial port to HID device
in the video receiving end to the computer respectively transmitted Shift+F5 (start playing), PU (up), PD (down), ESC (exit)