2.5 KiB
2.5 KiB
RpiLedBars
LedBars version for raspberry pi
Contains
- a python test program (main.py)
- a C program using :
- ws2812 with dma/smi from Jeremy P Bentham - https://iosoft.blog/category/neopixel/
- artnet from Stephan Ruloff - https://github.com/rstephan/ArtnetnodeWifi
Install
I2S Microphone
Install dependencies
sudo apt install python3-pip
sudo pip3 install --upgrade adafruit-python-shell
Build and install module
OLD OS <= buster
cd /tmp
sudo wget https://raw.githubusercontent.com/adafruit/Raspberry-Pi-Installer-Scripts/master/i2smic.py
sudo python3 i2smic.py
New os
Edit sudo nano /boot/firmware/config.txt to add
dtoverlay=googlevoicehat-soundcard
After a kernel update this step as to be executed again (after reboot -> depends on uname)
Test microphone
Plug the microphone
sudo reboot
arecord -l
arecord -D plughw:1 -c1 -r 48000 -f S32_LE -t wav -V mono -v file.wav
Control record volume
cp res/.asoundrc ~/.asoundrc
- Intall i2s mems microphone - https://learn.adafruit.com/adafruit-i2s-mems-microphone-breakout/raspberry-pi-wiring-test
- Configuring alsa - https://makersportal.com/blog/recording-stereo-audio-on-a-raspberry-pi
- Alsa API - http://www.equalarea.com/paul/alsa-audio.html
Project depenencies
sudo apt install cmake libasound2-dev
WiringPi
(
cd /tmp
wget https://github.com/WiringPi/WiringPi/releases/download/3.6/wiringpi_3.6_armhf.deb
sudo apt install /tmp/wiringpi_3.6_armhf.deb
)
Cava
sudo apt install libfftw3-dev libasound2-dev libtool automake git
git clone https://github.com/karlstav/cava.git
cd cava
./autogen.sh
./configure
make
sudo make install
Access point
grep "Access point conf" $(find /etc -type f)
Biblio:
Art-Net
- Protocol Spec :
- ESP32 library from Stephan Ruloff - https://github.com/rstephan/ArtnetnodeWifi
ws28xx rgb leds
- ws2812 datasheet - https://cdn-shop.adafruit.com/datasheets/WS2812.pdf
- ws2815 datasheet - https://pdf1.alldatasheet.com/datasheet-pdf/view/1134588/WORLDSEMI/WS2815B.html
- ws2812 with dma/smi from Jeremy P Bentham :