Since both Bluetooth and speakers aren't exactly new technology, you'll find that this is one of the more expansive product ...

We can’t find anyone else in our archive who’s made a Bluetooth dongle in this way, but we’ve certainly seen sniffing of HCI commands to reverse engineer a speaker’s communications.

So why use ESP-NOW rather than WiFi or Bluetooth? Mostly because of range, power usage and convenience with no SSIDs and passwords to bother with. The DIY Walkie-Talkie circuit diagram.

ESP-SparkBot is a compact AI-powered robot built on the ESP32-S3, offering voice interaction, image recognition, and ...