ESP32 SPI Communication: Pins, Multiple SPI, Peripherals …
https://randomnerdtutorials.com/esp32-spi-communication-arduino/
Introducing ESP32 SPI Communication ProtocolESP32 SPI PeripheralsESP32 Default SPI PinsUsing Custom ESP32 SPI PinsESP32 with Multiple SPI DevicesWrapping Up The ESP32 integrates 4 SPI peripherals: SPI0, SPI1, SPI2 (commonly referred to as HSPI), and SPI3 (commonly referred to as VSPI). SP0 and SP1 are used internally to communicate with the built-in flash memory, and you should not use them for other tasks. You can use HSPI and VSPI to communicate with other devices. HSPI and VSPI have independent bus ...
The ESP32 integrates 4 SPI peripherals: SPI0, SPI1, SPI2 (commonly referred to as HSPI), and SPI3 (commonly referred to as VSPI). SP0 and SP1 are used internally to communicate with the built-in flash memory, and you should not use them for other tasks. You can use HSPI and VSPI to communicate with other devices. HSPI and VSPI have independent bus ...
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