|Package Dimensions||15.49 x 5.59 x 2.29 cm; 68 Grams|
|Item Weight||68 g|
|Date First Available||15 August 2019|
REXQualis Nano V3.0, Nano Board CH340 / ATmega328P with USB Cable, Compatible with Arduino Nano V3.0 (Nano x 3 with Cable)
|Price:||+ $7.64 Delivery|
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- √ REXQualis Nano is using the chips ATmega328P and CH340, not FT232 as official Arduino, so pls. download the driver of REXQualis Nano V3.0 at: www.rexqualis.com/download
- √ REXQualis Nano V3.0 card is 100% compatible with the Nano card, and fully compatible with Windows, Mac and Linux operating system.
- √ REXQualis Nano is a smallest, complete, and breadboard friendly board. It has everything that Diecimila/Duemilanove has (electrically) with more analog input pins and onboard +5V AREF jumper.
- √ REXQualis Nano is Using Atmel Atmega328P-AU MCU, Support ISP download and USB download, Power via the Mini-B USB.
- √ The Nano can be powered via the Mini-B USB connection, 7-12V unregulated external power supply (pin 30), or 5V regulated external power supply (pin 27). The power source is automatically selected to the highest voltage source.
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REXQualis Nano ch340 controller is a small, complete board based on the ATmega328. It is a smallest, complete, and breadboard friendly. It has everything that Diecimila/Duemilanove has (electrically) with more analog input pins and onboard +5V AREF jumper. Physically, it is missing power jack. The Nano is automatically sense and switch to the higher potential source of power, there is no need for the power select jumper.
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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 Nano
Processor 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).
Again, 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.
Reviewed in the United States on 15 September 2020