I'm a total newbie. I bought a Pro Micro but I didn't know that it can't be used, if you don't solder things in his holes. I found this picture on Google:enter image description here

And it seems that exists those stuffs (green and white) to test the circuit before soldering.

Do you know where can I buy them? Or do you know their name?


  • As alternative I am looking for screws that would fit the pins but i've still haven't found any.
    – eadmaster
    Mar 24, 2020 at 8:51

2 Answers 2


Perhaps you are looking for items like these from from a well established seller adafruit.com. However, what you are proposing is not cheap when compared to soldering. I would recommend you learn soldering as it will likely be the way you want to assemble your final Arduino project.

  • It's exactly what I looking for! Yes, sooner or later I'll learn how to solder. Thanks!
    – DarkSkull
    Apr 21, 2019 at 19:49

If you're just getting started and are not comfortable with soldering I would suggest getting one of the larger boards that has headers on it. (An Uno or a Mega, for example). You can use one of those and a breadboard to experiment without having to solder at all.

MicroCenter (A US retailer) sells 100% compatible Arduino Mega 2560 knockoffs for $10 US.

I suggest using a board like that when you are first starting out. (And learn how to solder. It's very useful for electronics repair and various other things.)

  • 1
    I need a Pro Micro because I need its ability to emulate an HID USB device.
    – DarkSkull
    Apr 21, 2019 at 21:38

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