This module uses a high-speed Type-C interface, allowing direct connection to Android phones, tablets, computers, etc., for serial port debugging. Its high-quality integrated chip and superior performance make it ideal for demanding data communication applications, enabling USB to UART serial port conversion. It is compatible with 3.3V/5V levels and can communicate with STC/STM32 and other microcontrollers. Android Phone to Computer Communication: After conversion via the OTG board, Android phones can communicate with computers like microcontrollers, allowing data viewing via a serial port assistant. Android Phone to Microcontroller Communication: The adapter board enables serial data transmission and reception between the phone and STM32, 51 microcontrollers, etc., turning the phone into a debugger - convenient and practical! Color: Black Material: Metal+Plastic Package Contents: 5Pcs USB TYPE-C To TTL OTG Module Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.