The Uno has more memory and faster upload baud rate, but the Nano has a smaller form factor. Now create the ultimate Frankenduino with the best attributes of both.

By Julian

Youtuber, shed dweller, solar charge controller aficionado

14 thoughts on “Julian’s ardutorials: turn an arduino nano into an uno”
  1. Avataaar/Circle Created with python_avatars yfnato says:

    Could we do the same to turn a Nano into a Leonardo?

  2. Avataaar/Circle Created with python_avatars Faithin Verity says:

    You're videos are the intersection of wit and utility. Thank you.

    In an earlier video you mentioned that the Chinese Nanos lacked proper fuses. Is that still the case? I would be unhappy if my 9-year-old Dell were harmed. 🙂

  3. Avataaar/Circle Created with python_avatars nodebohacerlo says:

    Do you know if after this conversion from Nano to Uno, the additional pins in Nano are still working after the conversion?

  4. Avataaar/Circle Created with python_avatars Rahul Singh says:

    sir when i program attiny85 ic it showing error yenkie invalid device please check your connection

  5. Avataaar/Circle Created with python_avatars byte sized engineering says:

    Hi Julian, thanks for the video. Doesn't the nano have a 16MHz crystal oscillator while the Uno has a 20MHz crystal? I didn't find any mention of this in your video or the comments here. This will impact the timers on the chip and things like the delay(); function will operate at different speeds. Could you elaborate on this technique when the boards have different clock sources?

  6. Avataaar/Circle Created with python_avatars Donald Henke says:

    can you help with a problem with a nano

  7. Avataaar/Circle Created with python_avatars veera mani says:

    we need 230v AC relay (static or any) operating time ON and OFF 10 to 30 nano sec

  8. Avataaar/Circle Created with python_avatars Andrea Mitchell says:

    if the opitboot bootloader is smaller and more efficient then how come the nano does not come with it preinstalled and used the bigger slower bootloader?
    are there any drawbacks or is it just a copyright issue or something?

  9. Avataaar/Circle Created with python_avatars IAIN says:

    Sir, how to use the expansion board in the video?

  10. Avataaar/Circle Created with python_avatars Tom Adams says:

    Hi Julian, I love all of your videos, great job. I see you are using a USB Tiny ISP with 6 pin header. Can you tell me where to purchase for USA? You usually use Ebay, but I didnt see the link for it. Thanks in advance…..Tom Adams

  11. Avataaar/Circle Created with python_avatars Man Of Mesopotamia says:

    everytime I tried to apload GRBL it says GRBL is not compatible, can you make a video on uploading GRBL, i would appreciate that. many thanks

  12. Avataaar/Circle Created with python_avatars Jackson Shelton says:

    Is it possible to install the Optiboot bootloader on an Arduino Pro Mini (again, one of the clones, but it's from Inland).
    I am using the Inland FTDI to serial adapter that can work with both 3v3 and 5v Pro Minis.
    I have the 5v 16mhz.
    Any help would be great.

  13. Avataaar/Circle Created with python_avatars Viken Emesh says:

    Thank you for the quick guide, I very much appreciate the extra baudrate for flashing!

  14. Avataaar/Circle Created with python_avatars Ken Phillips says:

    I'm very late to the show with this Frankenduino business, but better late than never, anyway, I've just done this today, having only just yesterday built yet another Arduino clone thingy on some stripboard to use as an ISP to do it.
    I didn't do it for extra memory or for faster uploading of code, but to get the 'Watchdog Timer' to work properly, that I've only just discovered while trying to make my project a bit more 'bomb proof', didn't work on Nano's not running the Optiboot bootloader. In the words of certain Aussie, it's certainly a trap for young players, and it had me really puzzled as to why my nano was locking up at boot when I caused the timer to be triggered while testing it.
    So yeah, burning the Optiboot bootloader onto the Nano fixed the problem, and if my projects code gets stuck now, it gracefully resets and hopefully recovers, instead of just sitting there rapidly flashing an LED forever, after resetting itself.
    So maybe that's an idea for another video for you to do, showing the problem, and the resolution.
    Love your video's by the way, even the more frustrating and confusing ones.

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