Garden Sentry 12V - Part 7

 Weather cover for the PIR sensor plus some thoughts about solar charging.

For the weather cover we are using a sweets container lol

Garden Sentry 12V - Part 6

 From Part 6 yesterday we are now doing some modifications and tidying up the wiring.

Decided to move the unit down the support post a bit further away from the sensor to reduce the likelihood of top overspray triggering the sensor.

Garden Sentry 12V - Part 5B

 In this session were doing the electrical wiring.

Wiring is fairly easy the only thing to keep in mind is that the PIR sensor has a negative switched output - a bit weird.

Garden Sentry 12V - Part 5A

Mounting the water solenoid with irrigation fittings.

In the previous session we made the spacer block and here just drilled two holes for cable ties that will secure the assembly.

Garden Sentry 12V - Part 4

In part we we made and assembled the sensor and dashcam camera mount. The next thing to mount is the water solenoid with irrigation fittings.

On the left is the completed PIR sensor head assembly. Moving along...

Garden Sentry 12V - Part 3

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

From left PIR Sensor, Impact Sprinkler, 15mm Female To Female Rural Poly Irrigation Coupling , Irrigation Solenoid, 15mm Female To Female Rural Poly Irrigation Coupling, 13mm Tail x 15mm BSP Male Director, then garden hose (phew).

Garden Sentry 12V - Part 2

 In Part 1 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.