FTDI compatible FT232RL USB to TTL Serial Converter Adapter Module 5V and 3.3V

This device uses a USB 'Mini-B' connection. This isnt common and you might not have the correct cable. There is a picture, but it might not occur to you. In my case, I have this cable. Make sure you do as well.

We've had endless problems with Silicon Labs CP2102 based USB-UART modules. We use a lot of these USB-UART modules, mostly with ESP32. Since we changed to using FT232RL we have had zero problems. This module is excellent as it has DTR/RTS lines for software controlled reset and entering boot-mode for ESP32.

I give the FTDI FT232RL USB to TTL Serial Converter Adapter Module 5V and 3.3V a rating of 5 stars!

Excellent product , service , and postage was prompt Would highly recommend Littlebird

So quick and easy. Had been using a cobbled Arduino as a serial to USB converter with varying success. Plugged this one in and was up and running immediately no more issues! Little bird as usual delivered quickly and great follow up. Thanks guys!

I like this one in particular, as it makes all the extra RS232-like signal pins available (RTS/CTS,DTR/DSR,DCD,RI) in addition to the usual RX/TX and variable 5V/3.3V power.