[Clemens Valens] describes the construction and software for an ESP32 walkie-talkie system that uses ESP-NOW for the wireless connection between units, along with a low-cost condenser microphone ...

The hardware is a collection of modules on a custom PCB, aside from the ESP32 there’s an I2S microphone and I2S audio amplifier, which along with battery and speaker are housed in a neat 3D ...

The M5Stack Tab5 may look like a small tablet, but it's an ESP32-P4 IoT development kit with a 5-inch touchscreen display, a ...

If you want an even more insane HASS setup, you can connect a microphone to the Raspberry Pi, install some add-ons, and use them to control your ESP32-powered appliances using your voice.