ESP32-based Open AI Voice chat device (similar ChatGPT). Recording questions with a microphone, transcribing via Deepgram STT, then sent to Open AI. Response is played with AI voices on speaker. Supporting ongoing dialogues with saved history for follow-up questions. User defined "system prompts" for own "personalities" and dedicated use cases.

Publish the soil moisture content, of an RFID tagged garden pot, to an MQTT broker.