I have experience on some bidding websites. I think that those websites may find some interesting devices. I always browses on the most popular bidding website in China (www.taobao.com). Because the things are cheap, variety, interesting, novel...etc.
I found that the motor-sprinkler may be suitable for my project.
and I also found some of the sprinkle-nozzles may be suitable too.
However, I cannot find any infrared rays motor-sprinkler, as I need to the detect people pass-by. Lucky, I found an infrared-ray-switch on the website. It should be connected with the motor-sprinkler as well.
This switch can detect human pass-by. It can detect from 5M to 8M. It should be suitable.It can also load under 800W. It is more flexible for more devices to be connected together.
