What can you do with an old phone

Diy glue gun portable    • temperature controller simple circuit...  
DIY CNC V2 : https://bit.ly/3fFomdo
My Second Channel : https://bit.ly/3ec14vD
FaceBook : https://bit.ly/2WSnrxw
Instagram :   / hardwareboy0  
For Business Only : [email protected]

Mini CNC Machine :    • CNC V2 frame from aluminum / part1  
DIY Smart Home :    • DIY Smart Home  
You can help me to make such videos
follow me on : FaceBook : https://bit.ly/2WSnrxw
instagram : https://bit.ly/2Q9UIBL
Diy Speed Controller Motor : https://bit.ly/2Hh1wup
Diy Portable soldering iron : https://goo.gl/rcfpjr
Diy Overhead Camera Mount : https://goo.gl/Mxy4EM
DIY Remote Control Door Lock : https://goo.gl/NsjGVY
DIY How To Make PCB : https://goo.gl/L65LMo
DIY Smart Home : https://goo.gl/6R344h
DIY Salvage : https://goo.gl/MDDi5t
Automatic lighting control / people counter : https://goo.gl/oCZvnb
Wireless Rechargeable Mouse : https://goo.gl/HPeuuP
Electronic Components tester : https://goo.gl/QzRwBR

KADA 852AD+ HOT AIR Review : https://goo.gl/SbUqVz

Turn your old phone into an security alarm
When the door opens you get a call to your phone
You can make a security device with an old phone
and microrupteur
you have to set the phone on speed call first
solder 2 wire on the key you set
solder microrupteur
you can get the microrupteur from microwave or in electric store

The copper wire is taken from an old transformer. it is coated with insulating material and does not take a lot of space