# ray-ponder

## Descritption

Ray-Ponder is a system based on a RPI4 that record some audio messages on an old modified public phone after having welcome people with a message.
Audio playback and recording is done on I2S hardware.
To keep acces to the system, the RPI4 is set in AP mode.

## Inspiration and ressources

-  [RPI pinout](https://pinout.xyz/pinout/ground)
-  [Max98357 I2S amplifier tutorial](https://learn.adafruit.com/adafruit-max98357-i2s-class-d-mono-amp/raspberry-pi-wiring)
-  [I2S mems microphone tutorial Adafuit](https://learn.adafruit.com/adafruit-i2s-mems-microphone-breakout)
-  [Tutorial INMP441 microphone tutorial](https://makersportal.com/blog/recording-stereo-audio-on-a-raspberry-pi)
-  [Pyaudio tutorial](https://realpython.com/playing-and-recording-sound-python/)
-  [Pyaudio documentation](https://people.csail.mit.edu/hubert/pyaudio/docs/)


## Author

[Ange-Marie MAURIN](mailto://a-m.maurin@a2msystemes.fr)
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