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Dev tools · alternatives · 2026

24 alternatives to UNO R3 Atmega328P CH340G Microcontroller

The Cheapest UNO Board $3.38 Worldwide Free Shipping

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. UNO R3 Atmega328P CH340G Microcontroller launched in 2019; newer entries below may have overtaken it.

  1. 1WM

    Hello, we're Max and Byran from MUREX Robotics, a high school robotics team from Exeter, New Hampshire. We are super proud to have made this open source piece of technology! It is only 6.9 dollars (actually!) from JLCPCB :) I hope you like it. You can find us at [email protected] and [email protected] as well if you have any questions. We will be putting a small run of these boards for sale somewhere (we have <25 units of stock), probably for $10+shipping. Let us know if you're interested in more! Board files for everything we make is here:…

    2024 · docs.murexrobotics.com · its alternatives →

  2. 2

    Electric skateboard for $280

    2017 · its alternatives →

  3. 3
    Pine A64▲201

    First $15 64-Bit single board super computer

    2015 · its alternatives →

  4. 4

    The $5 computer

    2015 · its alternatives →

  5. 5OS

    International Space Station Tracker on an ESP32 CYD (Cheap Yellow Display) costing $20. Live update over Wifi, touchscreen, backlight power management. Cheap and interesting classroom STEM project. Fully open source.

    2025 · github.com · its alternatives →

  6. 6FA

    As part of a little research and also some fun I decided to try my hand at seeing how small of an ESP32 board I can make with functioning WiFi.

    Nov 2025 · github.com · its alternatives →

  7. 7

    A 55" digital white board from Samsung

    2018 · its alternatives →

  8. 8RP
  9. 9UP
  10. 10
    Arduino▲111

    Build your own electronics

    2014 · its alternatives →

  11. 11OF
  12. 12

    Hackable single board server for creators

    2021 · its alternatives →

  13. 13

    Development platform for Arduino users, makers and engineers

    2014 · its alternatives →

  14. 14

    Smaller, better, and cheaper: $20

    2014 · its alternatives →

  15. 15SC

    Hello HN! I'm excited to reveal Surfboard to you all! Surfboard is a widget that enables you to share your Arduino code as a URL link or HTML embed. People interacting with your widget can edit, compile and upload the code into their Arduino board--right in the browser. Surfboard supports over 170 boards and over 4,200 libraries, so rest assured you can share quite a large variety of Arduino projects here :) More on tech stack: - Backend is Node.js and Go with MongoDB database, with most of the codebase a derivative of the Duino App project (https:&#x2F;&#x2F;duino.app&#x2F;) - React…

    2022 · sfbd.is · its alternatives →

  16. 16AA
  17. 17TA
  18. 18SS

    Hi! My name is Ben, and I recently updated my audio dev board "Sonatino" after receiving a lot of good feedback from the initial launch a year ago. I began working on this after building a few projects that required audio capabilities. I was getting tired of wiring up external DACs and amplifiers to ESP32 boards, so I decided to look for a more compact, integrated solution. The available options either had larger footprints, non-standard connectors, or features that I didn't typically need for my projects. That's when I started working on a custom PCB that could be a sort of "audio swiss…

    2024 · its alternatives →

  19. 19

    Weight-Sensing Electric Skateboard

    2015 · its alternatives →

  20. 20
    Kontu▲108

    Sustainable multi-sensory STEM toy

    2019 · its alternatives →

  21. 21

    The all-in-one toolbox: Arduino + Linux + AI in UNO Q

    Oct 2025 · arduino.cc · its alternatives →

  22. 22FU
  23. 23

    A turbo boost for circuit board design

    2016 · its alternatives →

  24. 24
    Stinger▲84

    $399 electric skateboard by Genesis

    2016 · its alternatives →

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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →