Cat in the window

Just fed the Magpies and opened the balcony sliding door to let the hooligan back in - straight to the window.

Garden Sentry 12V - Part 1

Back from Bunnings with the irrigation fittings I need so we can now start building the low voltage motion activated sprinkler.

I am always prompt to check stuff like this so I know it's not DOA.

PIR Sensor - Part 3

In Part 2 we determined the switched sensor output could handle @ 12V a current load up to 4 amps. Not sure about that? more research (is possible) is needed.

Having said that the 12V irrigation solenoid (still waiting for delivery) is rated @ 0.3A or 300mA. Anyway for the sake of fiddling I want to hang a relay off the sensor output so went looking for one.

Found these two PCB's with relays, the top one is 24V the bottom is 12V so let's grad that one.

Bailey - Canine behavior?

One of Holly' (RIP) soft toys is missing from one of the back bedrooms?

Bailey missing slipper-

After a initial search ET's slipper is still missing?
 

Garden Sentry motion activated sprinkler - new design

Designing and ordering/collecting the stuff to make a battery operated version of my Garden Sentry.

12V PIR Sensor.

Garden Sentry - problems

Went out last night to turn on the garden tap and check the motion activated sprinkler and discovered the system has a problem. The PIR sensor turns on and stays on? Gave up after stuffing around for a while and shut everything down.

Here we are this morning in the workshop to swap out the sensor. On the right is the Garden Sentry with the faulty sensor. On the left is another project that uses the same sensor.