ebay USB to serial offerings

Hi all,

Recently I was soldering up a couple of standalone arduinos and I wanted to be able to upload sketches to them eventually via USB. I read on the forums here that a lot of people are using those "Baite" USB to serial breakout boards off ebay, and then soldering DTR to RST etc. So anyway, I ordered a couple of these from an ebay seller in China, and when they arrived, they were not the pictured Baite board but something different. I know there's a lot of this bait and switch stuff going on with Chinese sellers on ebay so I fully expected it, but this time, one of the units I bought was utterly shocking - it actually works without having to solder or do anything to it! This is what it looks like:

The second unit I received looks identical (not a "Baite" board as advertised), but it is laid out exactly like those Baite boards and requires soldering as usual. Anyway, I wouldn't recommend trying the seller I bought off because there is no guarantee you'll get that exact unit - seems to be pot luck.

There are a couple of other ebay sellers with auctions featuring pictures of these "working out of the box" units on ebay at the moment. They are a little more expensive though but if you want something that you don't need to mod, they may be the go.

Anyway, I just wanted to share that with you all in case it helps someone. :wink: Hopefully by the end of the year we will see more of these modules?! (Shush, I can dream, OK?)

PS If anyone knows who makes these, could you post here please? Thanks :slight_smile:

Hi

Interesting, that's the pinout of an FTDI breakout board. Is that the CP2102 or something like an Atmel MEGA8U2 mounted on there?

Geoff

Hi strykeroz,

Yep, it uses a CP2102 chip. Here is a comparison pic with images of all of three boards that I am talking about (all of them use the CP2102):

The two on the right have the same functions and have to be modded, but the one on the left is fine the way it is.

Hello
Can you please explain the modification required. I have purchased the following board(attached) and am not sure if modification is required.
Thanks in advance

$_12.JPG