This is the SparkFun USB to Serial Breakout for the FT232RL, a small board with a built in USB to serial UART interface. This little breakout is built around the FT232RL IC from FTDI, with an internal oscillator, EEPROM, and a 28-pin SSOP package this is a serious little chip. With this version, we’ve corrected a few issues found with the board. Belkin Usb To Serial AdapterSparkFun USB to Serial Breakout - FT232RL. Thanks at least for providing the schematic, it made the mod very easy to do. 1 of 1 found this helpful. USB to RS232 UART Serial Converter PCB Datasheet. USB to Serial UART interface IC device which handles all the USB. 5 USB-RS232-PCB Circuit Schematic. These changes include fixes to the VCCIO, a change from the mini USB to micro USB connector, and a few footprint modifications. Other than finding this board much easier to use, it is still the same FT232RL breakout that you know and love! To program an Arduino Pro Mini you basically need 4-5 connections. The first 2 are power and ground. Assuming nothing else is attached to the Pro Mini you can use either 3.3V or 5V power with no problem. Next is RX and TX. RX is receive and TX is transmit, meaning RX needs to go to TX and TX to RX. Sometimes you will see RX-I or TX-O, the I and O basically mean input or output and you can just ignore them. This tends to be the tricky thing is to remember to swap the RX and TX. The 5th connection is connecting the DTR pin, this is what enables the autoreset. If you don’t have this pin connected you can always manually hit the reset button. If you have any other questions feel free to email [email protected]. There are much cheaper bridges available in bulk from Alibaba and Ebay, but usually they’re based on the SiLabs CP2102. Pros: Dual mode drivers - You can use as VCP or direct mode. Great DLL documentation and source code examples for many platforms. DLLs to go with that great DLL documentation. Respectable support department has been responsive even to my hobby user questions. One set of drivers works with serial, JTAG, FIFO, other variants of the FTDI chips. Cons: It’s a wee big for hobby projects where space is tight. There are some Silabs boards that are ½ or 1/3 the size. This board is pretty easy to cut down without worrying about damaging anything though. ![]() ![]() Price - You can get equivalent function for serial only for $5 or so elsewhere, but you may have the occasional defective card. Bottom line: FTDI chips are well supported and documented. You get piece of mind that your project will just work - the first time, every time. Parallax has designed a USB to Serial (RS-232) adapter that is compact and economical to provide a Virtual Com Port for all of our products that have a DB9 (9-pin) serial connector. Updated FTDI USB drivers for Windows are included in the latest versions of the BASIC Stamp Editor, Propeller Tool, and SX-Key IDE software packages. 9 Pin Serial To Usb AdapterYou may also download the Windows drivers separately from our site, or drivers for other operating systems directly from FTDI (see the Downloads section below). Key Features: • USB Version 1.1 and 2.0 compatible • Connects to your computer with a (not included) • DB9 male socket to connect to your board's serial programming and debugging port • FTDI Drivers for most Windows PC operating systems are included with Parallax programming environment software (see Downloads) • Drivers for different operating systems are available from FTDI chip (see Additional Resources). • Power requirements: Regulated 5 V from USB port or powered hub. • Communication: Full speed USB, full duplex serial from 300 baud to 3 Mbaud. • Dimensions: 1.7 x 1.2 x 0.5 in (51 x 16 x 12 mm) • Operating temp range: +32 to +158 °F (0 to +70 °C) Easy to Use: • Install one of these Parallax programming environments (BASIC Stamp Editor, Propeller Tool, SX-Key IDE). • Or, download the USB drivers separately from the Downloads link • Connect the USB to Serial Adapter to your PC with a USB A to Mini B cable • A message from your system tray will say your hardware is installed and ready to use (Windows) • Connect the adapter to your device's DB9 connector.
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