Nice little programmer and you can't beat the price!

Just note that this only supports the micro at 3.3V and it can lose USB enumeration if it is plugged in to power a board that has some capacitance which glitches it's power supply.

I've reprogrammed one to be a little USB microcontroller with several pins available without modification which is great.

Boards are high quality, turn-around time is decent, shipping is reasonable, and I don't know anywhere else you can get them made without paying more than twice the price, It's win:win. Shipping from China does take some time, but it is what it is. And generating compatible gerber files is a snap with latest versions of Eagle. Service is excellent, if you have a problem with the gerber files, they're very helpful.

I used to make boards out of those generic boards with rows of holes and foil tape, ugh what a hassle, and they look like crap. These are way easier (once you learn Eagle), look professional and you can put way more components in the same space -- especially if you use SMD. I can't force myself to make them the old, hard way anymore.

There is no downside, if you've never had a board made for a project you owe it to yourself to try this. And if you have, you'll love these guys.

Perfect board. Had it for a while now and It can drive 6 64x64 LED panels with absolutely no problem.

Recommended !