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Program an ESP32 without writing code or installing any tools: a browser flash, Claude, and a macro that runs on the board

This story is from 2026-09-21. It is preserved in the archive; the latest stories are on the live feed.

By the Synacl team. Originally published at synacl.com , where the walkthrough is interactive. You can get an ESP32 reading a light sensor and pulsing a relay without opening an IDE, writing a sketch, or compiling anything. The board is flashed from a browser tab, it joins your Wi-Fi over the same…

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  1. 2026-09-21 12:30 · DEV Community — AI
    Program an ESP32 without writing code or installing any tools: a browser flash, Claude, and a macro that runs on the board

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