Just whant to tell hot to make mobile alarm system. If you whant you can see my video instruction for the making. From the simple mobile phone we can make some alarm system. See the video if you whant to know how to do it.
Step 1: Settings Phone.
First set your phone and off all any voise and light.
Step 2: Make a Mechanism
Make a mechanism from the nail. Take the dowel and cut it into 3 pieces, as shown in the picture.
Step 3: Piece of Clothespin
Cut off a small piece of clothes and wipe the nail path. See the picture.
Step 4: Glue the Parts to the Phone.
Glue the small part to the button with the shortcut function.
Most of it is glued to the top of the phone.
Step 5: Mechanism Assembly.
Assemble the mechanism as shown in the picture.
Step 6: Check the Working Capacity.
Push and release the button mechanism and check the operation of mobile alarm.