DSD TECH SH-U09C2 USB to TTL Adapter Built-in FTDI FT232RL IC for Debugging and Programming

Worked perfect with an Rak2270 (STM chip) sticker tracker.

I have a pile of assorted serial adapters sitting all over the place on my workbench, and I almost never use them. Either they're loose wires with unlabeled cables, or they're 5v when I need 3v3, or the power is unlabeled as well! Or my workspace is so chaotic that yet another bare board is just a recipe for shorting out my computer's USB port. This, however, is really the only device that I should have. It appears to be a genuine FTDI chip (0403:6001), with selectable power and logic levels. The pins are clearly labeled, and it comes with a set of Dupont wires. The whole thing is wrapped up in a plastic case that keeps it and your computer safe from the other stuff on the workbench. Lastly, LED indicators for power, RX, and TX help you to identify connection problems. I would appreciate maybe a little more shrouding around the pins and jumpers, but what I'd *really* like is if all my other serial adapters turned into these.

I use mine to program breadboarded ATmega1284 microcontrollers. It works perfectly. There is a good tutorial online if you search for it. This product it very well made.

Over the past few years I have purchased seven of this adapters. I find them very useful, built with quality and well supported. Why buy 7? Each has been used on a different project (projects with FPGAs, Raspberry Pis and generic Arduino boards). I find the USB side works well with Windows and Linux --and-- the digital side works well with 5v and 3.3v. When I have asked questions back to DSD, I have gotten prompt, useful answers. Call me a happy customer.

This device worked fine and did the job it advertised. Note that you’ll probably need to install the FDTI driver on some systems such as Windows 10/11.

I like that it has straps for various voltage levels. It has a clear case with clearly indicated signal lines - very nice. That will come in useful. If you just plug this thing in, it will not do anything. I use other FTDI devices (including some in our designs) and they just work by plugging them in. This one requires their driver, which is fine. After installing the driver, it wants a reset - unusual but ok. I wasn't ready to reset because I was in the middle of an edit and build so wanted to wait until later. The installation then proceeded the system to crash hard, with a blue screen and all the scary trimmings. It basically reset itself in a very rude way. That really irked me. I wasn't ready to reset and to see a blue screen seconds after installation is very disconcerting. After the PC came back up, the device worked. A bit clunky but does work. Save your work and install this thing when you're ready to reset. The price is right.

Having the jumper capability to select my 3.3 VDC VCC was very useful. I also needed some of the FT232RL interface pins that were conveniently located on well labeled through-hole vias after separating and removing the plastic case. This interface saved me from Digi International no longer supporting the programming cable for their Single Board Computer line.

I bought this after my prior (allegedgely 3.3V) serial cable stopped working after being connected to a 3.3V system. This is very nicely made -- it's enclosed in a clear enclosure (no worries about stray wires shorting out while tinkering) and lets you select 1.8, 3.3, or 5V out (no 2.5, though DSD has another unit that adds 2.5V as well.) A cable is inclued that connects to the I/O header on the end of the USB adapter that is terminated in 1x1 female header pins -- it's about a foot long. While I'm not a fan of blinky lights, at least you'll know this adapter is working. I've had no issues working with a Raspberry Pi as a console cable and also programmed a 2.5V arduino-type microcontroller successfully. I use Linux and no drivers were required out of the box, just plug an play.

接続が簡単。基板もカバーされてるので良いです。

Good build quality...and excellent in working....

Buon proddotto, con case plastico. di protezione Convertitore da USB a UART TTL, completo di case trasparente e jumper per le impostazioni. Il convertitore è un FTDI 232RL ed è una garanzia di funzionamento. Utilizzo da anni questo chip e non ho mai avuto problemi di compatibilità con sistemi operativi. Il convertitore viene visto in modo automatico da windows e non è necessario installare manualmente driver aggiuntivi. E' inoltre possibile scaricare (dal sito FTDI) il software per personalizzare le funzioni del chip di conversione USB e UART TTL. Sul convertitore è presente un Jumper che permette di selezionare tre diversi livelli di tensione 1.8V - 3.3V e 5V. Questo permette di avere 1 solo convertitore per le varie necessità, invece che diversi cavi. ATTENZIONE alle impostazioni. La confezione è completata dal manuale d'uso e da un mini catalogo dei prodotti. Ve lo consiglio.

Works like a charm.

This device worked first time! Very happy I have tried a couple of the FTDI devices from ebay, however I believe they use dodgy FTDI chips which when used with the genuine drivers, they are bricked. This however comes boxed, includes instructions and some female>female dupont cables. Geninue FTDI drivers worked perfectly. If your looking for a usb > serial converter for Arduino projects / Tasmota, this device works a treat. Wish I had have found it first, it would have saved a couple of hours.