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by STROMI
Tue Sep 07, 2021 12:47 pm
Forum: ESP32 Arduino
Topic: Unable to use RX and TX pin as INPUT after UART2 using
Replies: 2
Views: 4496

Re: Unable to use RX and TX pin as INPUT after UART2 using

Possibly because RS485 on Serial2 pins does not work on ESP32-WROVER.

Which board are you using?
Maybe your hardware does not have user access to the Serial2 pins?
UART2/Serial2 uses GPIO16 and GPIO17 which are reserved in ESP32-WROVER.
You may need to change to a ESP32-WROOM.

"Note
The pins ...

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