Hi.
Unfortunately, the hall sensor is no longer supported on the newest version of the ESP32 core for Arduino IDE (version 3).
See here: https://randomnerdtutorials.com/esp32-migrating-version-2-to-3-arduino/#hall-sensor

Regards,
Sara

Hi.
Thanks for the detailed explanation.
Regards,
Sara

My name is David. Your Arduino IDE v2 installation tutorial and your troubleshooting pages do nothing to address the Arduino V2 IDE installation in Linux. For example go to this page:

docs.arduino.cc/software/ide-v2/tutorials/getting-started/ide-v2-downloading-and-installing/

Scroll down to the section about installing the Arduino V2 IDE in Linux; at the bottom of that section there are Linux specific instructions for getting the serial port to be recognized by the IDE in Linux. The instructions are not difficult provided you already have some experience with Linux. For example, after following the Linux IDE install instructions, here are the changes I made to Linux Mint Cinnamon v21.3 64-bit to get the serial port to respond in the Arduino IDE running on a Lenovo ThinkPad T-430 Core i5 laptop. These changes resulted from following the Linux Arduino IDE v2 installation instructions verbatim:

root@drone-ThinkPad-T430:/etc/udev/rules.d# pwd
/etc/udev/rules.d
root@drone-ThinkPad-T430:/etc/udev/rules.d# ls -al
total 12
drwxr-xr-x 2 root root 4096 Nov 23 01:11 .
drwxr-xr-x 4 root root 4096 Jun 22 01:13 ..
-rw-r–r– 1 root root 0 Jan 9 2024 70-persistent-cd.rules
-rw-r–r– 1 root root 74 Nov 23 01:11 99-arduino.rules
root@drone-ThinkPad-T430:/etc/udev/rules.d# cat 99-arduino.rules
SUBSYSTEMS==”usb”, ATTRS{idVendor}==”2341″, GROUP=”plugdev”, MODE=”0666″

Now after a reboot and IDE restart Here is what the serial port looks like:

drone@drone-ThinkPad-T430:~$ pwd
/home/drone
drone@drone-ThinkPad-T430:~$ dmesg | grep tty
[ 0.090447] printk: console [tty0] enabled
[ 1394.731591] usb 3-2: cp210x converter now attached to ttyUSB0

OK, the cp210x is the Silicon Laboratories CP2102 USB to Serial bridge chip on my ESP32 dev module.

This works for the ESP32, but I have never seen anything like it for the ESP8266.

is the baoud rate the same?
sketch = serial monitor

c:\users\myprofile\appdata\local\arduino15\packages\esp32\tools\xtensa-esp32-elf-gcc\esp-2021r2-patch5-8.4.0\xtensa-esp32-elf\include\c++\8.4.0\cstdlib:41:10: fatal error: bits/c++config.h: No such file or directory
#include <bits/c++config.h>
^~~~~~~~~~~~~~~~~~
compilation terminated.

Any thoughts, comments or suggestions greatly appreciated.

Hi Sara;
The Arduino IDE is working again, there has been a new board update today in the program and it may be that in the previous one there had been an error.
Thank you very much for your interest and for your work and tutorials. Greetings.

Thank you very much for your help Jeremy, today when starting the Arduino IDE there has been a new board update for ESP32 in the program and it has recompiled without problems. There has probably been a failure in the update. Greetings.