To test the prototype, I used some tricks to simulate the washing machine and the light in the room. The washing machine can be easily simulated by an audio/video played on the host PC with a reasonable volume level, while the room light on/off status can be simulated by using a small cup to cover the light sensor.
To set up all peripherals and drivers, we can use all the preceding commands or the SYSINIT.sh script as follows:
root@beaglebone:~# ./SYSINIT.sh done!
Note
This command can be found in the chapter_05/SYSINIT.sh file in the book's example code repository
As an initial state (IDLE), we should cover the light sensor (to simulate that the light is off) and we should stop the video/audio player (to simulate that the washing machine is off). Then, we have to set a low threshold level into the configuration file for both sound and light detection and a very short timeout (5 seconds) in order to speed up the test. The following is my configuration file:
root@beaglebone:~# cat config...
