Wifi Test

$wifi_connect_ap_test wifi_name password

• Parameter Description:
  

"wifi_connect_ap_test" is the application name
"wifi_name" is the name of the wifi to connect to
"password" is the password of the wifi to connect to
For Example:

USB Test

1)Insert U disk

$ls /dev/sda*

2)Mount the U disk

3)View the contents of the USB flash drive
$ls /mnt

4)Uninstall the U disk
$umount /mnt

SD card Test

1)Insert SD card

$ls /dev/mmcblk1

2)Mount the SD card

3)View the contents of the SD card

4)Uninstall the SD card

Audio Test

1)Copy an mp3 file to the development board with a USB flash drive.
$mount /dev/sda4 /mnt/
$cp /mnt/music.mp3 /
$cd /
$tinyplayer music.mp3

2)Volume adjustment
$amixer controls

Find out numid=3,iface=MIXER,name='speaker volume control'

3)Gets current volume information
$amixer cget numid=3,iface=MIXER,name='speaker volume control'

4)Set the volume to 50
$amixer cset numid=3,iface=MIXER,name='speaker volume control' 50

Record Test

$arecord -d 10 -D plughw:0 demo.wav
1)Recording

2)Play recording
$aplay -Dplug:dmix demo.wav

Serial port test

• The development board has only one UART3, which shorts the pin of pin 13.14 of J20.
  

$./etc/uart.o /dev/ttyS3 “Hello”

• Parameter Description：
  

"uart.o" serial test application name
"ttyS3" serial port to be tested
"Hello" message content to be sent

Network port test

• Set your computer's local IP to 192.168.18.18 ，and close your computer's firewall.Connect the development board to the computer with a network cable and execute the following command:
  

$ifconfig eth0 192.168.18.36
$ping 192.168.18.18

4G Test

• The test takes L506 as an example (L506 is the 4G module of total network access)
  
• The test card is a mobile card.
  
• The dialup script is in the /etc/ppp/peers/ directory.
  
• Dial：
  

$pppd call gprsdial &

• Check the IP
  

$ifconfig ppp0