Question about library

[MilesLeeee]

Hi~~
I have already implemented the board , and now I am trying to understand the library, but I have some part I can't understand, could you help me to explain it , thank you very much.

This is the part that defines the IO expander pins in the EITKitArduino.h file, but I don't understand which part of the circuit this is.
ESP32_EIT.pdf
Here is the circuit of my board,
Sincerely,
MilesLeeee

[popular1119]

Hi, have you solved this issue? I'm also puzzled about this part of the code on my end.

[MilesLeeee]

Hi~
I didn't solve the problem either...

[popular1119]

Hello, is this problem solved? I have a problem now. Only in the case of EITKitArduino (16, 1, 4, AD, AD, false) can data be collected, and the image cannot be successfully reconstructed. Other electrodes and modes are all 1.1000. Do you have any information? Similar situation? looking forward to your reply.

[EidMaroun]

Hello, currently facing the same issue, did anyone get it to work please?