Ender 3D is it possible?

[JohnHellraiser]

Hi all. I want to connect my Ender 3 (3d printer) to the esp32-S2 mini, but I don’t understand how to read data from the RX/TX. I flashed, configured, connected to GPIO and GPIO3, respectively, but nothing happens. I sent a command to the printer so that it sends temperature readings to the port every 10 seconds, but I can’t catch anything. What am I doing wrong? Or where can I find instructions on how to do this?
THX

[Ath]

Can you elaborate a bit on what exact software/version you flashed on your ESP32-S2? As you posted this in the uPyEasy section of the forum, that has been really quiet for the last couple of years...

[JohnHellraiser]

Yes, I really made a mistake with the forum ((. If you can move this topic to the right forum, I would be grateful. For ESP32-S2 mini I use the latest version of normal_ESP32s2_4M316k_CDC.