There are plenty of small ESP32-C3 IoT boards with a USB-C connector on the market, and while they all look very similar, antenna designs differ, and less thought-out ones may severely impact the WiFi ...

[导读]该电路结合了ESP32， RA-02 LoRa模块和USB输出，以创建紧凑的物联网解决方案。不使用CH340或类似的USB-UART IC，使单板更小，更清洁。初始固件上传通过ESP32 DevKit完成，之后支持无线OTA更新。 紧凑型ESP32 + LoRa板，具有USB电源和OTA支持-理想的最小，无线物联网 ...

Captures and replays signals on a PS/2 interface (DATA and CLOCK lines). A "capture" is a sequence of GPIO readings taken at short intervals, effectively logging the entire timeline of PS/2 pin states ...

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