HiLetgo CP2102 USB 2.0 to TTL Module Serial Converter Adapter Module USB to TTL Downloader with Jumper Wires

I had to commuicate with a Waveshare TOF mini sensor board to change its settings and this worked perfectly.

20 years ago, in my Lab, I had designed almost same module to use for debug. But now, I can get it cheap and easily. But its specification needs a little points and here I wrote: 1. Tx & RX pins: 3.3V level. The Tx outputs 3.3V level without any load. So I expect signal level is 3.3V. 2. 3V3 & +5V pins: the module outputs for the external circuit. Now, it's perfect.

I got this item to work on a BeagleV-Ahead from beagleboard.org. I was able to read u-boot logs and deal with u-boot details. tio /dev/ttyACM0

Worked as advertised. Came with the small cables which were handy. Worked for my case, easy to connect and a good value for the money.

Unlike in the photo, the pins at the end of the device (where you connect DuPont jumpers or clip pogo pins) were covered about 1/3 of the way from the circuit board.. so it made it impossible to connect DuPont jumpers. I had to get out some scissors and carefully cut away some plastic so the pins on the end were completely exposed and I could slide DuPont jumpers fully onto the pins.After installing the CP210x drivers from silabs.com, this worked fine. I like how it has a blue LED, so pretty! There is another USB to TTL serial connector available for about $0.50 less which also works just as well. Both are compatible with CP210x drivers.Used this to flash Sonoff S31 power plugs with Tasmota in Home Assistant. No issues whatsoever.

God product

Like others, I used this to program a few devices over serial. Worked fine a year ago when I last used it, but hardware was not recognized by multiple Windows or Linux computers. I spent a lot of time thinking it was a software/driver issue but ultimately decided the hardware had failed. This seems to be a common theme with these. I will be looking for a different one based on a genuine FTDI chip, not a knock off that fails after very light use

Kept plugging the device into the USB port and it would illuminate showing it powered on, but it would never connect to a COM port having me believe it was some sort of driver issue… In reality the clear shrink wrap around the usb dongle was preventing the USB to plug in ALL the way.Once I forced the USB in a little more the device immediately popped up perfectly.