How to use camera and microphone on CrowPi L?

Elecrow · December 2022

Question:

Can you suggest any program that I can install to test the camera and microphone please?

Answer:

Install Mplayer first.
1. Upgrade the installer

sudo apt update
sudo apt upgrade

2. Install VLC (CrowPi L has already installed VLC, you can skip this step)

sudo apt install vlc

3. Install MPlayer

sudo apt install mplayer mplayer-gui alsa-base alsa-utils pulseaudio mpg123

4. Reboot the system

sudo reboot

Take a photograph.
1. Open the camera.

sudo mplayer tv://

Then you will see the camera window

2. Take pictures

fswebcam -r 640x480 -S 45 --jpeg 85 --save /home/pi/photo.jpg

The name of the picture is photo.jpg and the picture will be saved in the /home/pi directory. Press enter and then you can find a picture named photo.jpg in the /home/pi directory.

Record audio through microphone.
1. Record the audio.

sudo arecord -D "plughw:1,0" -d 5 test.wav

This is to record a digital audio in wav format for 5 seconds.
Parameter - D refers to the specified recording device. Here, the USB sound card plughw: 1,0 is used.

2. Play the record.

sudo mplayer test.wav