123456789101112131415161718192021222324 |
- #!/bin/sh
- # Turn on Power Amplifier
- gpioset $(gpiofind "PA")=1
- if [ $? -ne 0 ]; then
- echo "ERROR SPEAKER ON"
- else
- # Play 1kHz sine wave
- speaker-test -t sine -s 1 -f 1000 >/dev/null 2>&1
- if [ $? -ne 0 ]; then
- echo "ERROR SPEAKER SINE"
- gpioset $(gpiofind "PA")=0
- else
- # Turn off Power Amplifier
- gpioset $(gpiofind "PA")=0
- if [ $? -ne 0 ]; then
- echo "ERROR SPEAKER OFF"
- else
- echo "OK"
- fi
- fi
- fi
|