In fact, that’s what they were designed for. But developing modern user interfaces for old hardware thanks to the power of the ESP32 has some fascinating potential.

Based on an ESP32 (using the Arduino stack) and SDCard for control, and a LiPo cell charged wirelessly, the build is rather tidy.

I turned an old CD wallet speaker into a Google Assistant replacement thanks to an ESP32 and a ReSpeaker Lite, and it's amazing ReSpeaker-Lite-1 ReSpeaker-Lite-TDK-OutLoud ReSpeaker-Lite-TDK-PCB ...