Nano V3.0, 3pcs Nano Board CH340 / ATmega328P with USB Cable, Compatible with Arduino Nano V3.0 (Nano x 3 with 3 Cable)

Work as intended and I got a good price on them.The cord is a little short, but I intending on using a longer one. I will be ordering these again.

The packaging was well done I thought. Each Arduino comes in its own box with the pins packed in foam to prevent damage. And all of them come into a nicely packed box to hold them all instead of letting them fly around loose.I didn't really need the USB cables but it was a nice plus. My only complaint, if I used them, was that they're very short. Which is fine if you're doing some quick breadboarding at your desk. But if you need more length, I would recommend getting another cable.The solder joints on the pins were clean. Honestly I could've soldered some on myself but I didn't feel like going through the trouble this time. Having the JTAG header pins already soldered on was great too in case I need to recover it from bricking.I already had the CH340 drivers loaded from using other Arduinos in the past that use them instead of the TF232. Plugged them in, and they were recognized immediately by Windows.Using PlatformIO with VS Code, and it also picked them up without any need to point it at them. The test blink sketch worked, so I put it to use driving a custom LED light system with PWM. Worked flawlessly the first time without any problems.

These are excellent boards and work flawlessly with the driver from the RexQualis website & selecting Old Bootloader in the Arduino IDE. After my first purchase they soon became unavailable. I would buy these again if I could. In addition to working well, they were packaged fabulously in little boxes inside another box with the USB cords. Other boards I've ordered have been in loose plastic bags which Amazon tends to just throw into mailing envelopes and hope for the best. This is a really good quality product. It's definitely easier to not have to solder the headers on yourself. They're instantly ready for breadboard prototyping. If you have trouble uploading try pressing the reset button on the board while uploading the new sketch. I recommend it and hope they become available soon at the same price as before.

I took a chance on these prepared to throw them out when I couldn't get them to work but they work fine.There's a note in the package about having to download a driver for the CH340 chip. I develop on a Mac so the driver needed to be installed on the Mac, that was simple. Next, when it's time to compile and send a sketch to the nano, you need to go to Tools in the Arduino IDE (in my case on the Mac) and set the following:Board: Arduino NanoProcessor Old BootLoader (This is because my version of the Arduino IDE on the Mac is above 1.8.5 There are notes about this in the package from the vendor).Port: dev/cu.wchusbserial14120Again, this for my iMac.A few weird things that I noticed is that every so often the code fails to transfer to the board. Unplugging the board from the Mac and plugging it back in seems to solve that SOMETIMES. Sometimes it doesn't. There's no rhyme or reason to it. I've tried what everyone suggested including burning the bootloader from an Uno but there are times when you can't upload a sketch. It acts like an upset 2 year old toddler that needs a nap. If I wait long enough it starts working again. I've tried it on a Windows machine and that makes no difference.Lastly, I would probably not use this for development because it's so small. It makes more sense to me to develop on the larger Uno and then move everything over. I think i ruined one of these boards trying to solder leads to the pins. It wouldn't work after that and I'm guessing that I got it too hot.As far as creating a permanent solution with one of these, my plan is to attach to the nano pins using a jumper wire with a female connector at the board side. How will I keep it there? Probably a speck of epoxy. No more soldering that close to the board.Overall, pleasantly surprised.

I am not a huge fan of Arduino, there are 32 bit controllers that I prefer for my projects. There are other boards with better offerings.These however have a really nice price to value balance. Arduinos are comically easy to use, these come with free cables, and they all functioned out of box. And these have a good cheap/quality ratio.They don't work with Jetson nano. This likely on the Jetson side of things, but worth noting. Arduino IDE, pymata, and pyfirmata all will not find the these Arduino nanos if you are using Jetson. They work just fine with any other computer.

I'll be honest that I saw some of the past reviews for this product and some of the pictures showing some soldering that was not up to par, pins that were not set at 90 degrees for breadboard connections, but I went ahead and got this product anyways.Let me tell you - This company pays attention to the voice of their customers. I have three flawless nanos in front of me and I am impressed by the quality, packaging of the product, and the value of the three boards. It is very assuring to know these guys read their reviews and make improvements to their product, I'll definitely be getting my future boards from you.

This does not work without separate driver and still unable to use.Spend a couple dollars more and get a working one.

Their packaging and guidelines was the best I have seen at time of purchasing Nano boards, the info and emphasizes were not useful for me since I had went through them all, but I know for someone who is using Nano for the first time is a little bit challenge, also I want to add some point for first timers to this board, there are some differences among these and Uno for using the pins so look for them, pins a6 and a7 do not have all features of a1 to a5 to be used as digital outputs, also the feature of reset in Nano is useful.