WWZMDiB Mini USB to TTL Serial Converter Adapter, 3.3V/5.5V, FTDI Breakout Board for Arduino

Works well. Nice add on jumpers and usb cable. Had a bit of trouble getting my mini pro to upload, but ended up being a driver install issue due to ARM processor in my surface pro. After manually installing drivers it works without issue.

Works well and arrived fast. Great price point as well. Used it to upload new firmware to my zigbee hub

I needed to connect a serial device (AtariVox) for use with an Atari 2600 emulator (Stella), and this worked perfectly. I especially appreciated that all of the necessary cables were included. Other reviews of this board have pointed out that there are two pins that have been bridged by solder - however this is not an issue, as both pins are connected (by design) to ground anyway.

I wanted to use an 3.3V Arduino Pro Mini (modified for very low current) for a project but had no experience with Arduino boards without USB connections. The WWZMDiB Mini USB to TTL Serial Converter Adapter, 3.3V/5.5V, FTDI Breakout Board for Arduino worked flawlessly. And it was unexpectedly easy to use -- plug and play. I'm happy.

It has been working great to re-flash Sonoff s31s to Tasmota. I've had no problems flashing 4 of them so far. I do wish it was usb-c, but I've got enough old Mini USB cables for it to not be a problem.

An excellent small size converter from USB to serial. Allows selection between 5V and 3.3V output. Comes with a cable that makes it easy to adapt. Easy to find the driver for it.

Arrived on time (February 11th) & is in perfect condition (appearance wise… can’t truly test yet unfortunately). I’m hoping it’ll work perfectly when I begin working on a project soon. Thank you! Update (March 22nd): It works perfectly! No real connection issues (just need to redo a mistake with soldering the cables to truly test this but the main part is perfectly functional). Thank you!

I wanted to use this board to make a JP1.X remote interface. Good points: built-in RXD and TXD LEDs. RTS is not on the 6-pin header but you can solder to it. Bad points: Setting a break apparently does nothing. The interface is clearly sending and receiving serial data, and RTS is working, but without the ability to set and clear breaks, you can’t program a JP1.X remote with this. I also found that the FT_PROG utility can read the device’s information but it can’t change settings such as inverting data lines. The flash appears successful, but no settings are actually changed. So if you need a basic RXD/TXD serial interface this will do the job, but if you need to send breaks or change serial chip configuration, look for a different interface.