Arduino micro directly to USB port.

Projects General Guidance
1

I have a project where I'd like to connect an Arduino Micro directly to a USB port like a USB stick without a cable.

Is there an adapter from the micro USB to a standard USB type B male? I found this one with a mini USB but couldn't find a micro USB version. http://www.aliexpress.com/item/freeshipping-2pcs-lot-USB-A-to-Mini-B-Adapter-Converter-5-Pin-Data-Cable-Male-M/32331414266.html

Or is there a clone that already has the correct connector? I don't need all the I/O to be brought out to pins, a row of 6 or so at the end of the stick will be enough for me.

Thanks.

2

Sounds like you need to design your own board or have someone do it for you.

3

You could try the (expensive) RedStick from SparkFun

4

But that redstick (unfortunately) doesn't use the 32u4 chip so it may not do what the OP wants.

5

If he had mentioned using 32u features, I would have taken it into account. :wink:

6

But there is a cheap 32u4 variant also (much smaller)

ATMega-32U4-pro-micro-leonardo-For-Arduino-Compatible-pro-mini-usb-control-board 5,57€

7

Whandall:
If he had mentioned using 32u features, I would have taken it into account. :wink:

Could be inferred from "micro" :slight_smile:

...R

8

The usage? You are kidding.

9

Whandall:
The usage? You are kidding.

No. the 32u4

...R

10

Thanks for your replies. The 32u4 feature I want is to be recognized as a keyboard and easily send keystrokes.

Codlink, designing the board would be easy especially since I can just modify the files for the actual Micro. But soldering a QFN package is well beyond my ability. I can handle SOIC packages and 0804 components, but that's about my limit.

Whandall, the board you linked looks good. It does say it has the arduino bootloader on it, but it's hard to tell if it will just be a drop in replacement for the Leonardo/Micro (for ease of use). It probably is exactly what I want, but can you tell if this is supposed to look exactly the same to the arduino IDE?

Sorry for the confusion about the atmega32u4. For an atmege328, I would just use an Arduino Nano with the mini-USB adapter I originally linked.

As far is the Sparkfun board, even if it were atmega32u4 based, for a $25 board, is seems pretty crappy to just use the PCB like an edge connector for the USB port. For the $6 aliexpress board, the cheap product at a cheap price, makes it a lot more acceptable.

11

The AliExpress board should behave just like a Leonardo.
I have not tried one myself, but for the price I'll probably add one to my zoo. :wink:

12

Whandall:
to my zoo. :wink:

I, too, have one of those :slight_smile:

...R