This application allows you to connect an UART (Serial) USB adapter to a TCP socket, to send and receive data. Example use case: - connect your Arduino to the phone using OTG cable - access it using netcat in Linux Supported boards / chips: Arduino (original and clones) ESP8266 boards ESP32 boards NodeMCU ESP32-CAM-MB STM32 Nucleo-64 (ST-LINK/V2-1) FTDI PL2303 CP210x CH34x many CDC ACM devices Connection: Phone must have USB OTG function and be able to provide power to the connected USB device (most phones nowadays). Use USB OTG adapter cable (test the adapter works by connecting a computer mouse). Use normal USB cable to connect your embedded board to the OTG adapter. Note: symmetrical USB C - USB C cable might not work. Use normal cable and OTG adapter. End-User License Agreement: https://www.hardcodedjoy.com/app-eula?id=com.hardcodedjoy.tcpuart