The LIBRARY basement part 2

This is seriously one of the coolest pcb’s I’ve seen around lately.

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workarounds for BUGS in ESP32 rev0 (pdf)

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SQUIX diy weatherstation starting guide (pdf)

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1920s data processing with punched cards and relays

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YESSSSSSSSSS we have a network status page !

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transmitterpower 1 W @ 868 Mhz !?!