dimensionfx
New Member
Hi,
I'm looking to build a laser based burglar alarm for a school project. I already have a laser and a phototransistor in mind, however i do not know how to design a circuit that will amplify the current from the phototransistor which will then eventually go to the siren/alarm itself. Please help! Thanks.
**broken link removed**
I'm looking to build a laser based burglar alarm for a school project. I already have a laser and a phototransistor in mind, however i do not know how to design a circuit that will amplify the current from the phototransistor which will then eventually go to the siren/alarm itself. Please help! Thanks.
**broken link removed**