LaserAlarm
New Member
All good ideas guys.
But I would still like to make this my self. Half the fun is making something.
I could take apart a old smoke detector and use the alarm that's in side.
What type of relay could I use to keep the alarm on after the laser beam has been broken?
**broken link removed**
But I would still like to make this my self. Half the fun is making something.
I could take apart a old smoke detector and use the alarm that's in side.
What type of relay could I use to keep the alarm on after the laser beam has been broken?
**broken link removed**