Instructables
Picture of SIMPLE DOORBELL FOR YOUR ROOM
b (FILEminimizer).jpg
c (FILEminimizer).jpg
d (FILEminimizer).jpg
f (FILEminimizer).jpg
g (FILEminimizer).jpg
e (FILEminimizer).jpg

In this Instructable We are going to see the making of simple Door Bell for our rooms,this project is simplest one even made by beginners very well and very cheap .this project costs $1-$2.

Most of them want privacy on their room, this Door Bell may use to avoid the interruption of others. Simply make this project and fix it on your room, this may help to ask the permission to entering by others.

This Door Bell may also used by main Door Bell of the house.

This Door Bell circuit contains two normal NPN transistors (BC 547) and a musical transistor BT 66 T19L.This circuit consumes 3-4.5V.The amount of volume of the Door Bell is increased by increasing the Voltage level.

 
Remove these adsRemove these ads by Signing Up

Step 1: Gathering Tools & Materials

Picture of Gathering Tools & Materials
1 (FILEminimizer).jpg
2 (FILEminimizer).jpg
3 (FILEminimizer).jpg
4 (FILEminimizer).jpg
9 (FILEminimizer).jpg
6 (FILEminimizer).jpg
5 (FILEminimizer).jpg
7 (FILEminimizer).jpg
8 (FILEminimizer).jpg
11 (FILEminimizer).jpg
10 (FILEminimizer).jpg
12 (FILEminimizer).jpg
13 (FILEminimizer).jpg
14 (FILEminimizer).jpg
20 (2) (FILEminimizer).jpg
19 (2) (FILEminimizer).jpg
24 (2) (FILEminimizer).jpg
21 (2) (FILEminimizer).jpg
22 (2) (FILEminimizer).jpg
41 (FILEminimizer).jpg

Materials:

NAME RANGE NO

Resistor - 100R - 1

Capacitor - 220uf/25v - 1

Transistor - BC 547 - 2

BT66T19L 1

Speaker - 4 ohm - 1

Wire ----- required

Battery - AA size - 2

Common PCB ------- required

Push Button Switch - 1

Soap Box

Plastic Bush

Small Tic Tac box

Super Glue

Battery Cap

TOOLS&EQUIPMENT

-Soldering Iron

-Soldering Wire

-Hot Glue Gun

-Wire Cutters

-Insulating Tape

Step 2: ASSEMBLING THE CIRCUIT

Picture of ASSEMBLING THE CIRCUIT
16 (FILEminimizer).jpg
kk (FILEminimizer).jpg
AAAS (FILEminimizer).jpg
17 (FILEminimizer).jpg
18 (FILEminimizer).jpg
19 (FILEminimizer).jpg
20 (FILEminimizer).jpg
21 (FILEminimizer).jpg

Mark the required size on PCB board and cut it out.

Assemble the circuit by give plan.

Solder the wire on the terminals of speaker and connect the speaker to the circuit board.

Step 3: MAKE THE COVER FOR DOORBELL

Picture of MAKE THE COVER FOR DOORBELL
27 (FILEminimizer).jpg
28 (FILEminimizer).jpg
29 (FILEminimizer).jpg
32 (FILEminimizer).jpg

Because of choosing the Soap Box for this project, normally it contains holes on bottom this will help to spread the speaker sound.

Take the Soap Box; this contains two parts top and bottom parts.

We are going to fix the speaker on Soap Box bottom side ( hole side) by using the Glue Gun.

Mount the plastic bushes on bottom of the circuit board by the help of Super Glue.

Take the top part of the Soap Box; place the circuit board on it by the help of Super Glue.

omnibot3 months ago

Nice work.

karthickaski (author)  omnibot3 months ago

thank you friend