Matlab resources for examining EIT with simulated data are available at these pages:
These codes are explained in the book Linear and Nonlinear Inverse Problems With Practical Applications by Jennifer Mueller and Samuli Siltanen (SIAM 2012).
This is an open-access EIT dataset. The data can be freely used for scientific purposes with appropriate references to the data and to the documentation of the data in arXiv.
An informal documentation of data collection is available here as a video: