FT232 USB to Serial Module

Posted on Feb 7, 2014

This project is based on USB to serial converter FT232XX chip series. These chips can convert the USB protocol to asynchronous serial protocol. In other words, you can use the chip for convert for example USB1 port to the correspondent serial port. These chips can`t convert RS232 protocol to USB protocol. They are just a bridge between your USB po

FT232 USB to Serial Module
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rt and your project or device. After connection of pins of D+ and D- of the chip in windows platform, windows detects a USB device and searches for the drivers. The FTDI Company delivers all necessary drivers in Windows platform for free. You must download it from the page. After studying the installation manual, you must install the drivers. This must be done before application of the chip. If you connect the chip to the USB port after that, windows make a COM# port which corresponds the USB port, for example COM4. Any data in byte format which is sent to this COM port is redirected to the USB# port. This action is reversible, if you send a byte to chip from your device for example by a typical microcontroller and UART peripheral, the byte will be sent directly to COM# port. All transmission and reception of data bytes is handled by the FT232 chip. It is very simple. For a start only thing you need is a program that monitors the COM#. I suggest you to use this program. This program is accessible from this address too: is a free program. The operation is very basic. you must first setup your connection setting for example Baud rate, Port Number, Parity, etc. The appropriate setting is delivered in FT232xx datasheet. Then open the port by click on Connect button. This program is separated into 2 parts: Transmit and Receive. Any data byte which is sent to the correspondent COM port is shown on Receive part. Vice versa, If you...

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