Dev tools · alternatives · 2026
24 alternatives to Open Source DIY Electronic Derailleur
I recently got into cycling and got interested in tracking my performance to improve my ride. I couldn't find an affordable bike computer that I could easily modify so I built my own. One thing lead to another and I found myself building an electronic derailleur. I thought others might be interested in doing the same so I wrote an instructable. Love to know what you think. If you like it please vote. http://www.instructables.com/id/DIY-Electronic-Derailleur/?ALLSTEPS The Arduino sketch, schematics, Fritzing diagram, bill of materials and CAD diagrams can be found on the project page…
Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Prices are shown for the 1 we have checked on their own sites, 1 of them free or with a free tier. Open Source DIY Electronic Derailleur launched in 2012; newer entries below may have overtaken it.
- 1

This post shows and explains the design of the eBike I built myself. I decided to post it on this specific forum because this is where it all started, by stumbling on another post, as mentioned in my entry.
2022 · endless-sphere.com · its alternatives →
- 2

Hello! I'm Byran. I spent the past ~6 months engineering a laptop from scratch. It's fully open-source on GH at: https://github.com/Hello9999901/laptop
2025 · byran.ee · its alternatives →
- 3

Here's a "behind-the-scenes" look at my development of a cool sensor during my PhD (electrical engineering). This sensor is only about 1/3 of my total research for my degree and took about a year. I've been on HN for a while now and I've seen my fair share of posts about the woes of pursuing a PhD. Now that I'm done with mine I wanna share some anecdotal evidence that doing a PhD can actually be enjoyable (not necessarily easy) and also be doable in 3 years. When I started I knew I didn't want to work on something that would never leave the lab or languish in a dissertation PDF no one…
2024 · paulbupejr.com · its alternatives →
- 4

I am excited to announce the launch of my e-book on Graphics/WebGPU programming! This project has consumed much of my spare time, during which I developed various tools to facilitate the publishing process, including a code playground and a static site generator that can reference sample codes. However, I'm feeling burnt out and ready to call it finished, even though it may not feel completely done. Avoiding another abandoned side project has been my primary motivation in reaching this point.
2024 · shi-yan.github.io · its alternatives →
- 5

Turn your standard bicycle into an electric bike.
2016 · electronwheel.com · its alternatives →
- 6

E-bikes featuring classic frame designs.
2015 · faradaybikes.com · its alternatives →
- 7

Hey Hackers. This is a project I solo-developed that turns completed PCB assemblies into an easy to use boardview with some accompanying boardscans. There are lots of easier and better ways of doing this, but this is an experimentation to do it as cheaply as possible, with the highest quality and lowest chance of errors. The technical details are in the link. Most public boardviews are almost entirely the result of industrial espionage, other than a few encrypted subscription based software platforms that provide extensive access. The process output is released as donationware, as my main…
2024 · usoldering.com · its alternatives →
- 8

3D Printed Cycloidal Gearbox . Contribute to tom-ilan/cycloidal_gearbox development by creating an account on GitHub.
Aug 2026 · github.com · its alternatives →
- 9IM
2022 · imihajlov.tk · its alternatives →
- 10

Just finished a super-nerdy amateur hobby project: An exhibit and website to show kids how cool mechanisms are! Sadly, kids don't get much tangible experience with machines anymore. Ideally, this exhibit will inspire some to explore engineering, even if they are not "book learners". The website provides content to back up the exhibit, with videos and 3D printing files. The project is inspired by engineering exhibits from the past. Check out the research page for more. The project will be open-sourced to enable people to make their own and extend it. If you want to collaborate, LMK. --Steve
2025 · mechanical-library.org · its alternatives →
- 11BBicyclopedia▲125
Hey folks! A bit of background: I'm a software engineer by trade, but I'm currently on sabbatical doing a year-long working holiday in Australia. I love riding bikes but only had the most beginner-level knowledge of them before I found a job at a bike shop. This was a fun personal project to try to capture some of what I've learned so far, targeted at fellow beginners. It's going to be incomplete/lacking if you already have some bike knowledge, but I hope you all enjoyed it all the same. Please keep the feedback coming; it's late in Australia, but I want to make sure the bike info is at…
2025 · bicyclopedia.lemoing.ca · its alternatives →
- 12

3D printing is such a fascinating field of technology, so a couple months ago, I decided to take a deep dive and learn how they actually work! This took me to one of my very first PCB projects, a small, cheap, 3D printer motherboard. While it's not the most cutting edge board, I learned a lot and I fully documented my process designing it (https://github.com/KaiPereira/Cheetah-MX4-Mini/blob/master/J...), so other people can learn from my mistakes! It runs off of an STM32H743 MCU, has 4 TMC stepsticks with UART/SPI configurations,…
Dec 2025 · github.com · its alternatives →
- 13

A while back I wrote a CHIP-8 emulator (which is considered the Hello, World! of emulators and is more accurately a virtual machine since historically CHIP-8 was an interpreted language running on top of the COSMAC VIP to make game programming easier). But a few months ago I got really interested in embedded software, so decided it would be neat to port my emulator to a STM32 MCU and design a console around it as a learning experience, since CHIP-8 never existed as a physical system. I didn't know much about embedded software when I began, and even less about electronics, but I managed to…
2022 · github.com · its alternatives →
- 14VT
Long time reader, first time self-promoter. I'm a bicycle mechanic that figured I could make the process of bicycle wheelbuilding faster, more accurate and more satisfying. I do it by sampling digital indicators, rendering the data in useful ways, and injecting domain-specific insights. The UI interaction happens by foot pedal so my paradigm retains the traditional way of working with your hands.
2022 · islandix.com · its alternatives →
- 15IW
2021 · designingelectronics.com · its alternatives →
- 16
PESU e-bike▲73World's fastest quick response electric mountain bikes
2017 · kickstarter.com · its alternatives →
- 17
Light Rider▲953D printed prototype for an electric motorcycle
2016 · lightrider.apworks.de · its alternatives →
- 18

- 19
Karmic OSLO▲131The electric love child of a bike and a scooter
2019 · kickstarter.com · its alternatives →
- 20

Hi, everyone. I created a note-taking website for electronics and circuits where you can draw circuit diagrams and write text notes at the same time. I am a Digital IC designer, and I self-study different types of analog and digital circuits a lot. However, I found a problem. Circuits have many different architectures and are hard to memorize due to numerous experiential tips. I want to document what I learn in my note app, but I found there is no method for me to easily draw circuit and block diagrams alongside text notes. This issue has bothered me for a long time, from my master's school…
2024 · viscircuit.com · its alternatives →
- 21

- 22

Final year university project to design an open source build your own bike, adjustable for both use and rider. - JamieTaylor23/Adjustabike
2019 · github.com · its alternatives →
- 23
circuits.io▲74Learn electronics and easily create circuit boards online
2014 · library.io · its alternatives →
- 24

Also compare
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 →