Here’s a concise technical write-up on the (driver), covering what it is, why it’s needed, installation, and common troubleshooting. FT232R USB UART Driver – Technical Write-Up 1. Overview The FT232R is a popular USB-to-UART (Universal Asynchronous Receiver/Transmitter) interface IC from FTDI (Future Technology Devices International). It allows devices with a serial UART interface (e.g., microcontrollers, GPS modules, industrial equipment) to communicate with a computer over USB.