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esp32-rx : add support for I2S MEMS microphones

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Georgi Gerganov
2022-07-19 20:45:25 +03:00
parent ab3add3e7d
commit 16202eabd2
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examples/esp32-rx/README.md
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This is a sample project for receiving audio data using [ESP32](https://www.espressif.com/en/products/socs/esp32) microcontroller.
The chip has a built-in 12-bit ADC which is used to process the analog audio from the external microphone module in real-time.
The received messages are displayed on the attached OLED display
The program also support input from I2S MEMS microphones that does not require the usage of the ADC.
The received messages are optionally displayed on the attached OLED display.
## Setup
- NodeMCU-ESP32
- OLED SSD1306
- MAX9814 (also works with KY-037, KY-038 and WS Sound sensor)
- Microphone, tested with the following, but others could be also supported:
- Analog:
- MAX9814
- KY-037
- KY-038
- WS Sound sensor
- I2S MEMS:
- SPH0645
![Sketch-Breadboard](fritzing-sketch_bb.png)