This week, I read up on Bluetooth technology so that next week I can begin programming communication between Bluetooth devices. I mainly read a pdf I found by MIT on Bluetooth programming (https://people.csail.mit.edu/rudolph/Teaching/Articles/BTBook.pdf) which contained a lot of interesting details about how Bluetooth works and some intricacies with the technology. This pdf details how to create sockets such that data can be transmitted and includes information on piconets (which are ad hoc networks consisting of 8 devices, where one acts as a master, and the others act as slaves). One thing I didn’t know about Bluetooth is that an actively communicating Bluetooth device changes channels every 625 microseconds, so devices within a system have to sync their channel changes (I am sure Bluetooth hardware handles this but it was interesting to learn about). Next steps are: setting up basic communications between Bluetooth devices, getting a better idea of what information we want to transmit across our RC cars.
Carnegie Mellon ECE Capstone, Spring 2021 – Joel Anyanti, Fausto Leyva, Jeffrey Tsaw