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World's smallest stand alone Atmega328p-AU bootloader burner based on optiBoot
Tools
Reflowing
Arduino

What is it?

Just a little helper that will ease the chore of burning a bootloader onto a Atmega328P-AU chips and it's family. The color of the OLED display will be random, depending what I have at hand.

Why did you make it?

Because I constantly need to burn a bootloader on fresh factory chips and needed a way to make my life easier.

What makes it special?

Because it is simple. No need for a computer, to need to run any software, no need to set any fuses, no nothing. Just connect it to any 5V source, place your Atmega328 chip into the pocket and push the button, that's it, done.

You can also attach a 6 pin ISP cable and burn bootloaders onto other Arduino UNO's or any board for that matter that uses the same chip.

You can also get the removable 6 pin straight Pogo pin connector and use the provided Eagle library to include the ISP header to your PCB design and do not have to worry about soldering a big 6 pin male header to your otherwise small PCB for example.

Please see the demonstration video and if you have any question please ask.

Thank you.

Links to code and documentation

Design Files (dropbox.com)

Shipping policy

Processing time: 5 business days (made-to-order — I build it fresh, test it, then ship it).

Tracking: Provided for all orders.

International: You may owe customs/VAT — check your local rules.

Lost/Damaged: Contact me through Lectronz with photos. I'll make it right.

Address: Double-check it at checkout. I can't reroute packages after they ship.

Tiny Stand Alone Atmega328 Bootloader Burner

Sold by OLEDiUNO by Hayri

$70.26

No tax for United States [change]
Stock available: 1
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Original Design
This product was designed by OLEDiUNO by Hayri. By buying this product you support original hardware creators.

The seller

OLEDiUNO by Hayri

OLEDiUNO by Hayri logo

Chernik, Dulovo, Silistra, Bulgaria
0 orders since Aug 3, 2026
OLEDiUNO — Custom Electronics Engineering
Specializing in:
• CNC controllers and interfaces
• OLED and display driver boards
• Precision input devices (encoders, keypads, sensors)
• Made-to-order assembly and testing
Every product is built per order, not pulled from a shelf. This ensures:
• Fresh components
• Individual testing
• Customization options when available
Based in Bulgaria. Shipping worldwide.
Current project: MagScroll — a high-resolution magnetic encoder for rotary applications.
Questions? Contact me before ordering for custom requests.