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https://github.com/denisgav/pico-usb-headset
Making USB headset using Raspberry pi pico
https://github.com/denisgav/pico-usb-headset
i2s-audio raspberry-pi-pico usb-audio
Last synced: about 1 month ago
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Making USB headset using Raspberry pi pico
- Host: GitHub
- URL: https://github.com/denisgav/pico-usb-headset
- Owner: denisgav
- Created: 2024-04-04T08:01:13.000Z (9 months ago)
- Default Branch: main
- Last Pushed: 2024-07-24T17:21:06.000Z (6 months ago)
- Last Synced: 2024-07-24T20:08:27.028Z (6 months ago)
- Topics: i2s-audio, raspberry-pi-pico, usb-audio
- Language: C
- Homepage:
- Size: 9.96 MB
- Stars: 2
- Watchers: 2
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
Awesome Lists containing this project
README
# Making USB headset using Raspberry pi pico
Capture audio from a microphone on your [Raspberry Pi Pico](https://www.raspberrypi.org/products/raspberry-pi-pico/) or any [RP2040](https://www.raspberrypi.org/products/rp2040/) based board. 🎤
## Hardware
* RP2040 board
* [Raspberry Pi Pico](https://www.raspberrypi.org/products/raspberry-pi-pico/)
* Microphones
* PDM
* [Adafruit PDM MEMS Microphone Breakout](https://www.adafruit.com/product/3492)
* I2S
* inmp441
* [Adafruit I2S MEMS Microphone Breakout - SPH0645LM4H] (https://www.adafruit.com/product/3421)
* Analog
* [Electret Microphone Amplifier - MAX9814 with Auto Gain Control] (https://www.adafruit.com/product/1713)
* DAC
* PCM5102a
### Default Pinout
#### PDM Microphone
| Raspberry Pi Pico / RP2040 | PDM Microphone |
| --- | --- |
| 3.3V | VCC |
| GND | GND |
| GND | SEL |
| GPIO 18 | PDM1 DAT |
| GPIO 19 | PDM1 CLK |
| GPIO 20 | PDM2 DAT |
| GPIO 21 | PDM2 CLK |
#### INMP441 Microphone
| Raspberry Pi Pico / RP2040 | I2S Microphone |
| --- | --- |
| 3.3V | VCC |
| GND | GND |
| GPIO 14 | SD |
| GPIO 15 | SCK |
| GPIO 16 | WS |
#### SPH0645 Microphone
| Raspberry Pi Pico / RP2040 | I2S Microphone |
| --- | --- |
| 3.3V | VCC |
| GND | GND |
| GPIO 10 | SD |
| GPIO 11 | SCK |
| GPIO 12 | WS |
#### Analog Microphone
| Raspberry Pi Pico / RP2040 | MAX9814 Microphone |
| --- | --- |
| 3.3V | VCC |
| GND | GND |
| GPIO 26 | OUT |
#### PCM5102a DAC
| Raspberry Pi Pico / RP2040 | I2S DAC |
| --- | --- |
| 3.3V | VCC |
| GND | GND |
| GPIO 2 | SD |
| GPIO 3 | SCK |
| GPIO 4 | WS |
GPIO pins are configurable in examples or API.
## Examples
See [examples](examples/) folder.
## Cloning
```sh
git clone https://github.com/denisgav/pico-usb-headset.git
```
## Building
1. [Set up the Pico C/C++ SDK](https://datasheets.raspberrypi.org/pico/getting-started-with-pico.pdf)
2. Set `PICO_SDK_PATH`
```sh
export PICO_SDK_PATH=/path/to/pico-sdk
```
3. Create `build` dir, run `cmake` and `make`:
```
mkdir build
cd build
cmake .. -DPICO_BOARD=pico
make
```
4. Copy example `.uf2` to Pico when in BOOT mode.
## Acknowledgements
To create this project, following references were used:
* The [TinyUSB](https://github.com/hathach/tinyusb) library.
* Machine I2S https://github.com/sfera-labs/arduino-pico-i2s-audio
* SK9822 LED https://github.com/raspberrypi/pico-examples/tree/master/pio/ws2812
* Microphone library for pico https://github.com/ArmDeveloperEcosystem/microphone-library-for-pico.git
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