๐ Chandigarh University โ MCA/BCA/B.Tech
These Mid-Semester papers are part of the official examinations of Chandigarh University,
designed to test knowledge and practical understanding of core MCA, Computer Applications, and B.Tech subjects.
๐ก Each paper encourages students to think critically, apply concepts, and showcase problem-solving skills โ helping them prepare for real-world IT challenges.
Usage Condition:
- ๐ Papers are for reference and study purposes only.
- ๐งโ๐ Students should use them responsibly and not for any malpractice.
- ๐ Availability depends on the course and year.
Instructions
-
This question paper consists of three sections. It is compulsory for students to attempt all questions of Section A and Section C.
-
Students need to attempt any one question from question no. 12 and question no. 13 of Section C.
-
Students have to attempt any one question from question no. 11 and question no. 10 of Section C.
Internet of Things
Subject Code: 23CAH-702
Semester: 3 | Time: 3 Hours | Max Marks: 60
Section -A
| Q. No | Statement | CO Mapping | BT Level |
|---|---|---|---|
| 1 | Unveil the contributions of oscillators within the Arduino Uno board | CO1 | 2 |
| 2 | Provide a schematic representation of a seven-segment display in common cathode configuration | CO2 | 1 |
| 3 | Predict how LEDs behave in forward and reverse-biased conditions | CO2 | 2 |
| 4 | Discuss the significance of SPI communication in the context of interfacing with Arduino Uno | CO3 | 2 |
| 5 | Enumerate the utilities of the ultrasonic sensor (SR-04) | CO2 | 1 |
Section B
| Q. No | Statement | CO Mapping | BT Level |
|---|---|---|---|
| 6 | Write a program for the Arduino UNO that reads an analog voltage from pin A0, converts it to a digital value using the ADC, and displays the result on the Serial Monitor. The program should also convert the digital value to the corresponding voltage (in volts) and print both the digital value and the voltage to the Serial Monitor. | CO2 | 3 |
| 7 | Create and design a traffic light system using Arduino Uno, incorporating random conditions. | CO4 | 3 |
| 8 | Discuss the challenges associated with IoT-based health monitoring systems | CO5 | 4 |
| 9 | Outline the procedure for retrieving data over the cloud using a NodeMCU board, focusing on the justification with Blynk cloud integration | CO5 | 3 |
Section C-(3*10)
| Q. No | Statement | CO Mapping | BT Level |
|---|---|---|---|
| 10 | Design a circuit to interface the pushbutton using a pull-up resistor and LED with Arduino. Write a program to turn on the LED when the pushbutton is pressed and LED will turn off when the pushbutton is released. | CO3 | 3 |
| 11 | Create a program and schematic utilizing Arduino and two pushbuttons, employing them in a toggle mode configuration | CO4 | 4 |
Optional Question of Section C (Attempt any one)
| Q. No | Statement | CO Mapping | BT Level |
|---|---|---|---|
| 12 | Anticipate and detail the hardware requirements necessary for a smart car parking system | CO4 | 6 |
