WORKSHOP VIDEO #19: Part Ninja v1 testing and overview

The Part Ninja identifies electronic components like transistors and FETs, and measures basic specifications. Get an overview of this new project in this week’s workshop video. If you’re at Bay Area Maker Faire next month please stop by and see it in person.

We give a preview of the revision 2 board in the video. This project probably needs a couple more revision before it’s perfect, look for it in the fall at the earliest. To tide yourself over, why not use our gerbers to make your own PCBs and follow along with the development fun.

This project started in a forum thread that generated two projects. The first project, a new PCB layout for the AVR Transistor Tester, has already been tested by many users. The Part Ninja project combined elements of several designs to get better measurements. You can join the development of both projects in the forum.

You can also check out our 3D model of the Part Ninja which available in our Google 3D Warehouse collection, and our SVN.

Join the Conversation


  1. I can’t wait to get one of these… Though it would be better if I figured out how to do the tests on my own. Maybe with an AVR as I have a bunch of them sitting around.

      1. Sorry for the triple post… Anyway, I posted earlier based on the video. I just read the text and saw that the pic was used for better measurements. I really only want a transistor tester at this point :)

        However, I do look forward to building one of these in the future.

  2. Nice project! Another usefull tool on the bench ..

    A small remark usability-wise. Better change the letters (C,B,E) on the display and leave the pin numbers in the correct order. Makes one step less of matching for the tinkerer.

  3. This is cool ! It will be a nice tools to have (i wish pretty soon ) ! don’t forget to package a clothespin with it :o) (hight tech part holder )

  4. Nice video. I am curious on why to pick a PIC over AVR for this project in particular. Could you elaborate on what ‘better measurement’ means? I am not sure I understand. I am not a AVR or PIC fan. Very nice concept through. I will wait for the final PCB and pick it up from Seeed Studio. All the best guys.

    1. Hi Raj,

      No particular reason for PIC, other then I have been working with the 18Fx550 family a bit lately.

      Better measurement will be expanded on in a future video, but basically:
      *Each pin has a PWM too for doing some fancy testing
      *Each pin has a comparator connected to a 2.5volt reference. This will allow us to measure more consistently than relying on the pin 0 to 1 threshold
      *one pin has several extra resistor values for measuring resistance. Many designs use only 2 or 3 resistors, and have a big dead area in the measurement range

      1. Thanks for the explanation. Much appreciated.

        Yes. I will wait for the future videos. I was overly curious I suppose.

        Your videos are wonderful. I enjoy your down to earth explanations and guided tours. All the very best to you.

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