I am sorry to ask sir but there is no document related to your old prober system, yes i have worked on Rapsberry pi 3 and bluetooth scanning and positioning systems. I have immense experience in embedded system development.
I have worked in designing embedded systems for Germany which includes indoor farm lighting and water and atmosphere system, out door automatic irrigation system, Colar for monitoring cattle herd so that they can be monitored about health and feeding conditions.
Camera applications for clients in Germany and Europe as well.
I have also designed Driver fatigue detection system using raspberry pi and online traffic monitoring system with tagging C# software to count Number of vehicles.
I have designed Neuro-marketing system, Induction motor fault detection system, Security system, Smart home IOT and many small projects using arduino as well.
I have developed systems using arduino, STM32, PIC and raspberry pi.
Your problem falls under my expertise.
Looking forward to hear from you soon.
Regards