Hello
many thanks for nice answers!! It was funny for me to read.
Competition is over,
ACE-X was first has the point (+100 points from me actually), it's
remote alarm system built by mine
It's for protecting our garden with bees. I was very surprised but some theft had stolen some of bee-boxes from the garden....
This device has been developed to be low-cost and easy to build (what I've actually found).
The main trick is that used phone (old alcatel) is able to dial number by holding defined key. The most difficult part of work was to melt the wires to keyboard and put them out
Device has several current loops - 2port inputs; when intruder breakes the loop, derivative circuit is used to create pulse which is extended to 2sec for activating the dialing.
3 port inputs are used for IR motion sensors which requires +12V supply.
I understand that you're laughing but trust me, this device is rocking stable and fulills all my needs. It was also quite easy to build in my free time...