Most microcontroller tutorials stop working the day a new board core or library version ships. You copy the code, it fails to compile, and you can't tell whether the mistake is yours or the tutorial's. FlashReady exists to fix that.
Every code block on this site lives in a public sketch folder with the exact core and library versions pinned. We compile all of it automatically, show you the versions it passed on, and flag a page the moment a newer core breaks it. Here is exactly how that works.
What we care about
Code that compiles, every time
Every sketch on the site is compiled automatically against pinned core and library versions. The badge on the page comes from that run, not from someone typing a version number.
Wiring you can trust
Diagrams use the real pin order of each board, show every power and ground wire, and respect 3.3 V and 5 V levels. Mains projects follow strict safety rules.
Made for Indian makers
Parts lists in rupees, projects that solve Indian problems — water tanks, power cuts, pumps — and a growing set of pages in Hindi.
No ads
No ad networks and no selling of data. We use Google Analytics only to count visits. Your Playground work stays in your own browser.
Who builds it
FlashReady is built and run by DVM Techno, an electronics and software studio in India. We build firmware, PCBs and connected products for startups, factories and institutions — and we publish what we learn here.
Pages are drafted with the help of AI tools, but nothing counts as published until the code has compiled and a person has reviewed the page. Pages still awaiting that review carry a visible “Draft” note.
Independent, and honest about it
ESP32 is a trademark of Espressif Systems, Arduino of Arduino S.r.l., and Raspberry Pi and Pico of Raspberry Pi Ltd. We use these names only to describe what a page is about. FlashReady is not affiliated with or endorsed by any of them.
Some parts lists contain affiliate links; they never change what we recommend. Read our affiliate disclosure.