Posted on 20. October 2024
Some years ago when I built the software for an online ticketing platform, we wanted to have turnstiles which can be used to improve the pass through rate of the ticket scanning process at larger events.
We found a fitting product and the seller promised us that the controller of the turnstile can easily be integrated into our local on-site application. Of course it was not as easy as promised. We only received a DLL as an SDK for C++ for the protocol called LL268 and a demo application. So how to integrate this turnstile into our software?
Well, eventually I was able to reverse engineer the core functionality of the API so we were able to use it for our purpose. Since the product is not used any longer, I can finally write about it.