I am trying to make a garden proctecting type device. It am trying to make it real basic. I am thinking about just using a couple of PIRs at an angle to one another to create 2 zones. Basically if it sets off the PIR it will flash some leds, wait and then read again, if detection again I want it to move servo to a set location, fire either water based gun or bb gun then move a few degrees within the zone and fire again. So maybe have 3 set points within each zone and if motion is still detected then just go through the 3 points firing on each. My servos I have are Futaba FP-S148 which i have made continuous rotation. Everything I try through the servo library just turns servo on or off - it doesn't allow me to stop at any set point. Not sure if it is my servo or setup. I have tried another Traxxas servo with the same result. Any help would be appreciated.
They're not servos, so you can't expect to control their position
Making a servo continuous rotation turns it into a variable speed motor. You will need to get some more regular servos and then continue.
AWOL, Jeremy - thanks - I will do that and continue.
Richard - thanks - I have seen this elsewhere as well. Only problem will be power - my garden is a good 200 yds away from house - so something like that i think would require a nice battery and some way to charge deep cycle battery. Haven't ruled it out yet because i think it has other benefits you say. Also thought about just triggering a motor that clanged something made some other noise. Not sure just yet. I would like to develop something easy and cheap to duplicate for my neighbors.
Interesting - water pressure is avail. Have to check into the flush sensor.
Razorback: You might be interested in this. http://www.paintballsentry.com/Videos.htm
Salvador, thanks - that is pretty incredible. I dont need to hit anything just scare it. Also trying to just use arduino so I don't want to have to mess with laptop or cameras, but that is very cool nonetheless.
water pressure power impeller driven generator recharged automatic flushers would be here if not for the expense.
Boo
or is that poo?
Anyway the Arduino can be made VERY efficient at power conservation. It can go into a sleep mode where it uses very little power in the microamp range and will wake on an interrupt, either a timer or external. You would develop this with the Arduino then use something like a boarduino with as little on it as possible. A PIR will easily set off an interrupt to turn on the sprinkler system.