Adana Science and Technology University
Department of Electrical and Electronics Engineering
Electrical Circuit Lab Term Project
Object Detection Circuit
1. INTRODUCTION
In this project, you are going to design a circuit which is able to detect an object.
When an object pass through an interval then the LED attached at the output starts blinking which
indicates that an object passed the control point. To identify the presence of an object in the box, connect a
LDR as well as source of light. LDR is a special kind of resistor whose action based on the intensity of
light declining on it. In this circuit you are going to adjust the LDR in such a way that the light will
directly drop on the LDR so that when any object passes through an interval it will chunk the light beam
and LDR will be beneath darkness.
1.1 Design Criteria’s
Design a circuit for object detection. For instance when an object pass through a rectangular interval then
the LED attached at the output starts blinking which indicates that an object passed the control point.
2. Rules and Regulations
During the project, you may use any types of resistors, capacitors, op-amps and gates. Other circuit
components and integrated circuits are not allowed to use during the implementation phase.
The project will be carried out in groups of two students.
2.1. Preparation
In the preparation part, each group is required to present a proposed design solution for the project in a
report (pre-report). The report should also include simulation results illustrating the operation
of the circuit used in the design. The necessary calculations for each step (for example, resistor and
capacitor values) should be described in the report clearly.
The deadline for submitting the pre-report will be announced. Please ask the laboratory assistant about the
date. Late submissions will be penalized.
2. 2. Implementation and Demonstration
In the implementation part, you will physically construct your circuit. All team members must attend the
construction together. The attendance will be considered during the lab performance grade.
You
must
provide
your
own
circuit
components
(op-amps,
resistors,
capacitors,
pots, etc.) and bread-board.
NOTE: During the project you are going to submit two reports. In the pre-report you are required to give
the main blocks of your design with their schematics and simulation results. The second one is the final
report which contains information below.
3. Final Report
The
final
report
should
include
the
final
design,
results,
and
a
summary
of the experiences gained during the project.
NOTE: The objectives, results and the experiences should be presented clearly. This does not
mean a long report, but definitely a well-organized one. The final report should contain the
following sections:
1. Abstract and Introduction
2. Theory
2.1. Selection of equipment such as resistors, capacitors, inductors, op-amps etc.
2.2. Working principle of the project
3. Schematic diagram of the circuit
4. Simulation results
5. Description of circuit operation: Both theoretically and experimentally
6. Comments and conclusions
ATTENTION
Cheating is strongly forbidden and will be severely punished. Each project can be implemented
in many different ways. Hence, it will be easy to detect similarities. This does not mean that you
cannot collaborate with your friends. However, the allowed form of collaboration is exchanging
the ideas, not duplicating the design details.