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XDA Developers on MSN6d
You, too, can make this stylish ESP32 air quality monitor with an e-ink display, and it looks stylish to boot
The device uses a PCB that integrates an ESP32-C3-mini with the COâ‚‚ Sensor (SCD40). The PCB also has connectors for the ...
Using the ESP32’s I2S peripheral in parallel mode makes it possible to shift data out in the correct format to drive the LCD without bit-banging IO pins and using up precious CPU time.
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