This repo is just a collection of quick-n-dirty notes and code snippets written during the process of reversing the BLE comms of the EL-500.
I just needed to understand how the device reports its status over BLE, and be able to collect it with a custom device. For that reason, I have not looked into most of the BLE packets sent by the target. Other messages may be added in the future.
It is not intended to be a complete solution, or a tutorial for that matter.
I wrote a blog post describing the project in more detail. You can find it HERE
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)