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The following figure shows the pinout diagram of the FTDI USB to RS232 converter. It consists of 6 pins. But mostly four pins are used to connect UART based devices with the computer through this FTDI cable.
SparkFun has a line of USB to serial UART bridge products designed to allow a user to communicate with a serial UART through a common USB port. It is harder to find computers with serial UART ports on them these days, but super common to find serial devices.
FT232RQ USB to Serial UART interface IC device which handles all the USB signalling and protocols. The cables provide a fast, simple way to connect devices with a TTL level serial interface to USB.
CP2102 UART Module integrated with CP2102 IC from SiLabs, which is a single-chip USB to UART Bridge IC. This USB-to-UART bridge controller provides a simple solution to update the design of the RS-232 using minimal components and PCB space.
Explore the features, pinout configuration, and troubleshooting tips for the MCP2200 USB-to-UART serial converter chip by Microchip Technology. Learn about its applications, variants, and design considerations for PCB layouts.
The FT2232H is a USB 2.0 Hi-Speed (480Mb/s) to UART/FIFO IC. It has the capability of being configured in a variety of industry standard serial or parallel interfaces. The FT2232H is available in Pb-free (RoHS compliant) 64-pin LQFP/QFN and 56-pin QVFN packages.
The chip handles all the protocol of converting USB data to UART serial data. The cables provide a fast, simple way to connect devices with a TTL level serial interface to USB and they do not require any additional software installation and setting before using them.
To provide some overvoltage protection, I’m going to show how to design a USB to UART bridge using the CP2102, a popular interface converter component for USB 2.0 lines. You can watch the full tutorial for this project in the following video.
DB9-USB modules can be used to upgrade a UART port of a device to an active USB port. These active connectors contain all the USB to UART (and vice-versa) conversion electronics and are designed to fit directly into the same PCB footprint as a PC compatible UART DB9 connector.
The CP2102N is a universal USB to UART converter which helps to convert the USB data into TTL serial form for microcontroller interfacing.