<![CDATA[[GRAY/ESP32] Serial.print shows nothing, Serial.available is never

<![CDATA[[GRAY/ESP32] Serial.print shows nothing, Serial.available is never > 0. Normal ?]]>Serial.print shows nothing, Serial.available is never > 0. Normal ?

I see lots of examples in the Arduino IDE where it should work, but not for me. Notably, I connected some camera to the groove/uart port, programmed them, Serial or various attempts of SerialPort are all unavailable.

I have a GRAY (m5stack ESP32), wondering if it has a hardware issue or if it is something with programming. I have spent many dozens of hours on this, if you have a view it is very welcome.

]]>https://community.m5stack.com/topic/5569/gray-esp32-serial-print-shows-nothing-serial-available-is-never-0-normalRSS for NodeSat, 16 May 2026 20:13:17 GMTSat, 12 Aug 2023 00:16:28 GMT60