<![CDATA[[SIM800L] I want to release HardwareSerial2 for other high frequency sensor. Is there any why can switch physical connection between GPIO?]]>

<![CDATA[[SIM800L] I want to release HardwareSerial2 for other high frequency sensor. Is there any why can switch physical connection between GPIO?]]>Hello everyone
I want to use the SIM800L module for IoT sensor.

There have 2 HardwareSerial on M5Stack’s board,
but, I heard about HardwareSerial0 has been used for USB(typeC).
So,I want to switch GPIO16/17(U2) to GPIO26/36(SoftwareSerial).

I heard about I don't need to change physical connection.
The esp32 can change GPIO position, only use software.
Is that possible?
How can I do that? Change the M5Stack.h?

]]>https://community.m5stack.com/topic/1001/sim800l-i-want-to-release-hardwareserial2-for-other-high-frequency-sensor-is-there-any-why-can-switch-physical-connection-between-gpioRSS for NodeTue, 12 May 2026 06:00:28 GMTWed, 15 May 2019 08:48:50 GMT60