ESP32 Pinout: How use GPIO pins ?
UARTs available in ESP32-WROVER-E (and related GPIO pins) (IDFGH-5161) · Issue #6939 · espressif/esp-idf · GitHub
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Pin assigment for UART in ESP32 · Issue #137 · eerimoq/simba · GitHub
ESP32 Pinout simplified: No more confusion when choosing GPIOs.
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