Dive into the world of Bluetooth technology with this in-depth 38-minute video from SparkFun Electronics' "According to Pete" series. Explore the low-level workings of Bluetooth Classic, covering its history, specifications, data rates, modulation schemes, data formats, and frequencies. Learn about Bluetooth topology, frequency hopping, generic data format, connection sequences, modes, profiles, and the Bluetooth stack. Gain a comprehensive understanding of the Bluetooth landscape in this crash course suitable for those interested in wireless communication technologies.