Electrical & Mechanical Project House

Share your Final Year Project & Thesis related views, troubleshooting or anything... We are always here to listen you. :)

Using Keypad,a customer can easily order his expected food menu.
How it works?
suppose a customer has selected menu no 1,4,3 so on and once he/she is done then he/she can press C(confirm) key. At this time information will be sent to the kitchen of the restaurant. All this information will be displayed on a computer display. For this purpose we have used a Bluetooth module as transmitter at the customer table side. And another Bluetooth module as receiver at the kitchen side. So orders will be directly sent to the kitchen and users don’t have to wait for the waiter. And at the same time LCD will display the total billed amount directly to the user.
Required Components:
1.Bluetooth module(HC-05)
2.Microcontroller(PIC16F73)
3.LCD
4.Keypad
5.Crystal(20MHz)
6.Variable Resistor(100K)
7.Breadboard
8.Connecting Wire
9.DC power Supply(5volt)
The Cost of this Project will be around 700-800BDT.
If you have any query, feel free to inbox us.

When more than one power sources are used in a circuitry , the ground terminal of all of them should somehow be shorted. This is typically said common ground. This makes the reference level of the power sources same. Without ensuring this , the circuitry might not work properly .

How are you all? How are your projects going on? :)

Distance Measurement with Ultrasonic Sensor & PIC Microcontroller .

Key Components Needed :
1. Ultrasonic Sensor/ Sonar ( It may be of 3 pin or 4 pin. Here 4 pin ultrasonic sensor is used)
2.Microcontroller (PIC16F73)
3.A Display (16x2 LCD Display)
4.Button , Capacitor ,Oscillator etc.

It shows distance of any object from its transmitter in cm. Its lowest measuring distance with accuracy is 4 cm and highest measuring distance is quite good enough for small level : a several meters.

Not for every project you need to buy same components again and again.However, for info the price of the 4 pin ultrasonic sensor is 200 taka. If any queries , feel free to comment.

HT12D আর HT12E যথাক্রমে Decoder এবং Encoder IC । Wired আর Wireless Communication ২ ক্ষেত্রেই Secured Communication এর জন্য ব্যবহার করা যায় ।
উভয় IC তে ৮ টা করে Address Pin আর ৪টা করে Data Pin আছে ।

বিশেষত Wireless RF Communication এ প্রচুর Noise তৈরি হয় । Receiver প্রচুর Garbage Value Receive করে ।

এক্ষেত্রে Encoder এবং Decoder IC ব্যবহার করে Address Specify করে দিলে Transmitter আর Receiver Side এ Address Bit মিললেই শুধুমাত্র Receiver Data Receive করবে ।
পাশাপাশি অন্যান্য Radio Frequency এর Interference ও এড়ানো যায় ।

ঈদ মুবারক সবাইকে... :D
Eid Mubarak to Everyone.... :D

How are you all? :)
Sorry for the Interruption.
New posts are Coming very soon....
Keep in touch...

An amateur level project "Automatic Street Light".

Required Components:
1:Operational Amplifier (Op-amp LM-324).
2:Potentiometer(10k)
3:LED
4:Resistor 1k
5:Breadboard
6: Power supply (5V)
7:Connecting Wire

The Cost of this Project would be 200tk.

Project Name:


Required Components :
1.Keypad 4x3 matrix
2.Pic16f73(microcontroller)
3.LCD display
4.Oscillator (20MHz)
5.Potentiometer (100k)
6.Resistor(10k)
7.Power supply (5 volt)
8.Connecting Wire.

The total Cost of this project would be 800 BDT.

Password based Security lock system

Components : Keypad, Microcontroller, oscillator, Lcd, potentiometer, resistor,connecting wire.

The cost of this project is only 850tk.

Distance measurement through IR Emmitter & IR Receiver.

Components: IR emmitter, receiver, Microcontroller, Oscillator, LCD,Op-amp,Breadboad, Connecting Wire

The total cost of this Project would be Only 350tk.