Hello all,

This is my first post to this forum so I hope im posting in the correct place.

I have a Mr. Christmas product called "Silver Bells Musical Pathway Lights" that I am trying to fix. There is supposed to be a motion sensor that, when set off, lights up the bells and starts playing music. This motion sensor has been lost. Now, there are only two wire ends that im guessing used to connect to it. When the bells are plugged in, crossing these two wires causes the lights and music to happen. Using my multimeter on the 2 wires, the voltage is 6V (so is the wall plug).

I'm trying to figure out how to wire in a PIR sensor or something else to these to make it go off when someone walks by, but I cant seem to figure it out. Ill called and emailed the company and they have been no help.

Thank you in advance for any help,

Mike H.

 

Since shorting the two wires activates it you could likely use any number of PIR motion sensors commonly available. Here is a popular single example of what is out there. This is an open collector type so it would require power and ground as well as a pull up resistor. Here is another example and here is the data sheet for the link. With the latter example you would need to likely add a transistor to act as a switch triggering your lights/bells.

Ron

 

Hey Ron!

Thanks for your help! Ill give the open collector type a try.

Mike H.

 

You are most welcome and if you need additional help just ask.

Ron

 

You can pick up PIR modules with relay outputs on eBay for a few $/£, the more expensive part will be a suitable enclosure to keep it safe from the elements.
Voltage wise your looking at 5v, so a PIR with 5v relay would be ideal. You could even go with a microwave doppler effect detector instead, which make life easier when it comes to sealing an enclosure.