EspNowAudio
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| Project EspNowAudio | |
|---|---|
| |
| Status | Initializing |
| Contact | bertrik |
| Last Update | 2020-03-01 |
What
The idea is to experiment a bit more with ESP now, in particular in combination with audio transfer.
Stuff to learn:
- ESP now broadcast mode: does it really work? https://github.com/espressif/ESP8266_NONOS_SDK/issues/8#issuecomment-419774432
- ESP now throughput: https://hackaday.io/project/166868-my-attempt-at-an-esp-now-mesh/log/166398-072419-maximum-transmission-throughput-of-esp-now
- ESP now packet loss when used continuously
- Audio over IP protocols, e.g. VBAN
- Possibility to transfer even ultrasonic audio?
Possible end result: A kind of zero-standby power intercom. When you press the button, an ESP8266 is powered up. It immediately starts transmitting audio from a digital I2S microphone over ESP now. The receiving end will probably be an ESP32, that receives the ESP now audio and converts into a standardized audio-over-ip protocol, e.g. VBAN.
Plans:
- build an Arduino playground project so I can access the API from the command line and play with it
- start with an ESP32 + INMP441
Related interesting stuff: