More often than not, an IoT master device uses the SPI (serial peripheral interface) and I 2 C (inter-integrated circuit) protocols to exchange data with EEPROMs or sensors that are operating in slave ...
XDA Developers on MSN
I paired a Raspberry Pi with an ESP32, and it unlocked projects I never thought of before
A Raspberry Pi can do a lot, but adding an ESP32 gives it the physical reach that small hardware projects often need.
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