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SkyWarp
2025-09-01 14:12:50
This works absolutely perfectly and work exactly as they should. Easy to use and my pc loaded the drivers for these easily. Great buy
James L. Christensen
2025-08-23 10:06:37
This guy works great.This converter interfaces directly to the TTL Rx and Tx serial pins of common microcontrollers. The logic level of these microcontroller pins is inverted RS232 and the device operates like a MAX232 except the output is USB and not RS232. Connection to a computer requires a MALE/FEMALE USB cable and not the standard dual male type. I view the output with the TERA TERM emulator. The applicable com port can be discovered in the device management menu (WIN X) under COM PORTS.
Sci-Fi Fan
2025-07-29 15:56:47
Hit or miss QC it seems....Received 2X boards, one worked perfectly right out of the bag, the other had a very loose USB connector and was continuously connecting/disconnecting from the PC when plugged in. Upon further investigation it seems the metal USB connector was not soldered to the circuit board, not even a poor solder job... but zero solder. It was only hanging on the pc board by the two metal tabs on the side of the connector. Anyway, a quick two min fix with the soldering iron and the connector was now making contact with the four pads on the board and it worked perfectly when plugged in to the computer.All-in-all a decent deal if you're willing to possibly put in a little effort to overcome factory QC over-sites.
Félix
2025-07-11 14:13:53
Never had any UART debugging tools before, got this and it went a lot smoother than I expected.They come in a heat shrink tube cover, which is useful for preventing the circuit from shorting out on metal tables.I did end up needing to trim the heat shrinking a little bit in order to get the wires attached, but upon my second attempt of putting the wires onto the pins, it is possible to get all the wires attached without needing to trim the heat shrink.Personally find the two for one bundle a great value as compared to other listings which charge 2x the price of this for only one.I've left one of them plugged in 24/7 for several months now to debug a fussy modem, and it is still running letting me log the output without any issues.
Michael B
2025-07-03 14:21:10
There's not much to say, they work out of the box with Ubuntu, showing up as /dev/ttyUSB0 which Arduino IDE expects and communicates with. ;PI bought some cheap micro-controllers a couple of weeks ago that implied that they could be programed through their usb connection. Now that I have this USB to TTL connector, I can actually use those microcontrollers.
William Rodriguez
2025-06-15 15:40:21
Good quality
David Epperson
2025-05-29 17:03:53
I received two of these adapters and neither would be recognized by my system. I tried Windows 10 and an Ubuntu installation and attempted to manually install the drivers to no avail. Just two more pieces of cheap E-waste.Upon further inspection I found that BOTH of them had a glob of solder across three pins of the chip. After some minor surgery to remove the solder with a kitchen knife, the device was recognized by my system and worked a treat for rooting my Dreame D9 Robot Vacuum. But yeah, other reviews remarking about the poor quality control are not kidding.
Rubs
2025-05-25 15:13:26
Funciona perfecto
Brian W.
2025-05-20 16:55:47
Only used 1 of the 2 so far to connect to a Cisco spa122 and unlock it. Everything worked as expected without any issues. Did not do any further testing so can't comment on the 3.3volt or 5volt connections.I was able to accomplish what I wanted so I am happy with the purchase.
Senyx
2025-04-16 13:39:19
I already have one CP2102-based USB-TTL adapter, but needed another one. And to get two is even better! Both adapters work great. There are three LEDs on the board - POWER (red) and RX/TX (blue). I am used to inspecting all the USB sticks/adapters/linkers/debuggers that I purchase because it's very common that something isn't soldered well. These guys are no exception. Both had the same very common issue - a USB connector isn't properly soldered to the ground. Zero solder! See the pic. I've seen this a number of times before. Why manufacturers do this is beyond me.
Matthew Egan
2025-02-04 12:03:53
This USB adapter is a great cheap solution for flashing and ExpressLRS (ELRS) receiver via UART when you accidentally brick it.
Waqas Ghouri
2025-01-17 14:19:47
Its awesome and do my work like a just plug and play. I used another hardware and the RX port was not working on it. But with this hardware It works as expected and I can use TX and RX GNd port.
Wendy Feng
2024-12-26 13:21:37
I had another USB/TTL which couldn't do anything. It kept failing constantly. These worked perfectly straight out of the box.Thank you
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