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I am using ESP32-S3-WROOM-1-N16R2 Controller in my design. I want to connect Sensor with this module which has both I2C and SPI Communication pins. I gone through the datasheet for controller, but i didn't find particular pins for I2C and SPI Communication. Can anyone explain?

Datasheet Link: https://www.espressif.com/sites/default/files/documentation/esp32-s3-wroom-1_wroom-1u_datasheet_en.pdf

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  • \$\begingroup\$ Perhaps link to the data sheet you are reading, and then someone can explain. \$\endgroup\$ Commented Apr 11, 2024 at 11:42
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    \$\begingroup\$ Esp32 has the ability to map any peripheral to just about any pin so you decide what pins you use. \$\endgroup\$ Commented Apr 11, 2024 at 12:48
  • \$\begingroup\$ @Kartman that is true, but there is limitation on clock frequency for SPI if you dont use specific pins. \$\endgroup\$ Commented Apr 11, 2024 at 15:47

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These kind of information is usually in the SoC datasheet, not the board one. In this case it's this datasheet https://www.espressif.com/sites/default/files/documentation/esp32-s3_datasheet_en.pdf (it is also linked from the board datasheet)

In this case it seems to be pins 5-6-7-8 when set with RTC function 3. There's a handy table at the end with all the pins and their functions.

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