Open-Source International Space Station Tracker ESP32/Arduino for $20
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.
Open-Source International Space Station Tracker ESP32/Arduino for $20 launched on June 27, 2025 with 75 votes, #502 of 7,999 launches that month and more than 95% of that year's launches. The site was still online in September 2026, 1 year on.
In plain words
This project is an International Space Station tracker built on an affordable ESP32 microcontroller with a touchscreen display, available as open-source code. It connects to the internet to provide live ISS location updates and includes features like touchscreen interaction and backlight management. Designed as an accessible and practical STEM learning tool for classrooms, the complete hardware setup costs around $20, making it an affordable option for educators and students interested in space tracking and embedded systems development.
written from the facts on this page · September 2026
From the sources
Simple app to display the current location of the International Space Station on a ESP32 CYD (Cheap Yellow Display) - GuitarML/SpaceStationTracker
SpaceStationTracker is an application that displays the current position of the International Space Station on a 2D world map. It runs on a ESP32-2432S028R ILI9341 device with a 2.8" screen, commonly known as the CYD "Cheap Yellow Display", which costs $20 or less. The code was written using Arduino IDE / ESP32 development environment in c++. I used this project to learn programming for ESP32/Arduino/CYD. It includes topics such as graphics using LVGL, wifi connection, getting information from a restful API, parsing json data, and touchscreen interaction. This would make a great space related STEM classroom project. As of the time of writing, the end of life for the ISS is slated for 2030.…from github.com
Does a similar job
all alternatives →
Beautiful 3D ISS tracker with live video and near-realtime clouds2024 · iss.matteason.co.uk · ▲139This is a little hobby project that I hope you enjoy. You can see where the International Space Station is now, with live HD video from NASA, on a realistic 3D globe. The positions of the sun and moon are also accurate, though distances aren't to scale. The clouds are also near-realtime; I span that out into a separate project at https://clouds.matteason.co.uk, where the cloud images I create from EUMETSAT data are freely available. I've got more features almost ready to go, like the ability to turn off all UI, toggleable clouds and turning off the day/night cycle I'd love for…
SpaceSight24 - ISS & Satellite TrackerDec 2025 · apps.apple.com · ▲4Track ISS, Starlink & 12K+ satellites with AR viewer



More dev tools this month
the category →

open-source IDE for thoughtful software design. Contribute to devdotfast/whiteboard development by creating an account on GitHub.
Dev tools · 28d ago · github.com

Contribute to reladraw/reladraw development by creating an account on GitHub.
Dev tools · 26d ago · github.com
OpenBot▲362Grok Bot alternative: free, local, open-source, multiplayer
Dev tools · 23d ago · openbot.run
Talanoa▲346Hi HN, I’m a fullstack developer, and honestly, I’ve lost count of how many side projects I’ve worked on over the years. But one idea kept coming back to me: a different kind of email client. It first came to me in 2014: “What if we could handle emails more like conversations?” Every year, I’d revisit this concept in my “Build Notes.” Ten years later, no one had built exactly what I had in mind — so I finally decided to do it myself. That’s how Talanoa was born. I wanted something focused on people, not timelines. I was tired of marking messages as unread just to remember to reply later, or…
Dev tools · 21d ago · talanoa.email
CoreSpeed▲332One MCP for everything your agents need: apps, memory, tools
Dev tools · 28d ago · corespeed.io
Source: Show HN post ↗
Launched alongside, June 2025
the whole month →- IM
Hey HN! Pilots everywhere are required to keep a logbook of all their flying hours, aircraft, airports, and so on. Since I track everything digitally (some people still just use paper logbooks!), I put together some data visualizations and a few 3D globes to show my flying history. This globe is probably my favourite so far: https://jameshard.ing/pilot/globes/all If you’ve got ideas for other graphs or ways to show this kind of data, I’d love to hear them!
Life & fun · 2025 · jameshard.ing

Stunning presentations with AI. No design skills required.
AI · 2025 · chroniclehq.com

Build native mobile apps for iOS and Android without code.
Dev tools · 2025 · bble.io


All your connections, across all your socials.
AI · 2025 · pally.com

I was the main contributor to workout.lol, an open-source fitness app to easily build a workout routine. The project had traction (1.4k GitHub stars, 95 forks, ~20K visits/month), but was eventually sold due to video licensing hurdles. The new owner stopped maintaining it, and the repo went abandoned. Over the next 9 months, I sent 15 emails to try to save it : no replies. Feature requests & issues were ignored. The community was left with a "broken" tool let's say. I couldn't just let it die So I built the new version from scratch with the same open-source spirit, but a better…
Dev tools · 2025 · github.com