How To Make Automatic Door Alarm
This instructable is going to help you make a cheap door alarm using minimal technical devices.
How to make automatic door alarm. The materials needed are. How to make easy automatic door alarm circuit with pir sensor thank you for watching my video. These instructions will teach how to make a cheap door alarm using basic circuitry and easily accessible materials. The key component to this device is the clothespin trigger.
Likewise we can create many useful projects using this like. The schematic for the door alarm circuit is shown below. Attach the plywood to the wall next to your door. It does not use any kind of sensors or specialized switches made for door alarms.
Or a alarm to scare of intruders. Full code for this door alarm project is given below. Primarily ultrasonic sensor is used to measure distance from any object but here we can see that it can be used as security alarm or door alarm with arduino. A wire w is placed near the hinge of the door and is connected to the switch.
This will be the base of your door alarm. Add tip ask question comment download. This trigger completes a circuit when the door is opened signaling the alarm to go off. How to make a simple door alarm.
You may need to drill holes in the wood to hang it from the hangers. Generally you ll want to attach your piece of wood close to the top of the door within a foot 30 5 cm from the. Well you found the right project. The 9 volts that are supplied to this circuit are in parallel with the 10kω resistor and the knife switch with the gate of the scr being connected to the middle of.
Automatic water level indicator and controller using arduino. A piece of cardboard about 6 x 6 9 v battery battery snap connector dc mini buzzer. Use removable wall hangers or tape to attach the wood on the wall. We will use a knife switch in conjunction with a 10kω resistor the 2 of these components form a voltage divider circuit.
Ever wanted to know if a door was open. 1 arduino 2 led or buzzer optional 3 resistor 4 aluminum foil wire s 5 power supply. Please kindly assist me to like share and subscribe our channe.