EvilDuck S3 V2 ESP32-S3 USB HID Programmable Development Board Product Overview EvilDuck S3 V2 is a compact USB programmable input simulation module built based on single-chip ESP32-S3 solution, optimized for embedded development and desktop automation script debugging. This hardware is upgraded from classic dual-chip design, integrating native USB HID signal output and 2.4G WiFi communication on one controller chip, no extra auxiliary microcontroller required. The hardware supports graphical browser control panel via WiFi hotspot, independent script storage on built-in flash and external MicroSD card, addressable RGB indicator light, and complete DuckScript script parsing engine to realize automatic input simulation after plugging into Windows, Linux and Mac devices. It supports auto-run script boot, adjustable running timing mode, and remote script management without installing extra mobile APP. Core Hardware Configuration Main Controller: ESP32-S3 single-chip microprocessor Wireless Module: Built-in 2.4G WiFi 802.11 b/g/n Signal Output: Native USB Type-A HID keyboard simulation signal Storage: SPIFFS internal flash + MicroSD card slot, supports USB mass storage drag-and-drop file transfer Indicator: WS2812 addressable RGB LED (2020 packaging) Power Chip: LM1117 voltage regulator (5V to 3.3V conversion) Communication Lights: RX/TX status indicator LEDs Web Management Panel Functions After power on and connecting to its WiFi hotspot, users can access the web dashboard via any browser: Upload, edit, save and delete all automation scripts online Remote trigger script execution, pause running tasks at any time Real-time running log display: current script name & executing line number, error warning records Built-in multi-system script library for Windows/Linux/macOS demo automation cases Password access lock, customizable WiFi SSID, password & hidden network mode Over-the-air firmware update directly through web page without extra tools Storage Working Modes Internal SPIFFS Flash: Script data permanently saved after power off MicroSD Extended Storage: Cross-file transfer between internal storage and SD card USB Disk Mode: Connect to computer as removable storage disk for direct file copy V2 Version Upgrade Highlights Single-chip architecture replaces traditional ATmega32U4 + ESP8266 dual-chip combination, smaller size with higher integration Add MicroSD card expansion storage slot to break internal flash capacity limit Independent addressable RGB lamp with full software color control Optimized voltage regulation circuit and communication indicator lights Modular firmware framework, optimized script parsing and WiFi transmission stability Applicable Scenarios Embedded programming learning, desktop repetitive operation automation, cross-platform input script development, electronic maker DIY projects, embedded HID signal research, office batch operation script debugging
