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JNTUA College of Engineering(Autonomous),Ananthapuramu
Department of Computer Science & Engineering
DIGITAL SYSTEMS LAB
Course Code: Semester III(R20) L T P C : 0 0 3 1.5
Course Objectives:
• To present a problem oriented introductory knowledge of Digital circuits and its applications.
• Explain the elements of digital system abstractions such as digital representations of information,
digital logic, Boolean algebra, state elements and finite state machine (FSMs).
• Design simple digital systems based on these digital abstractions, using the "digital paradigm"
including discrete sampled information.
• Work in a design team that can propose, design, successfully implement and report on a digital
systems project.
• Train the students to build IoT systems using sensors, single board computers and open source IoT
platforms.

Course Outcomes:
CO1: Design, Test and evaluate various combinational circuits such as adders, subtractors, multipliers,
comparators, parity generators, multiplexers and de-Multiplexers.
CO2: Construct flips-flops, counters and shift registers and verify its functionality
CO3: Realize and implementation of Asynchronous and Synchronous counters using Flip-Flop IC’s .
CO4: Implementation of different combinational logic circuits using IC’s.
CO5: Design and develop IoT based sensor systems.

List of Experiments:
1. To verify (a) Demorgan’s Theorem for 2 variables
2. The sum-of product and product-of-sum expressions using universal gates.
3. To design and implement 4-bit Parallel Adder/ subtractor using IC 7483.
4. To realize (a) 4:1 Multiplexer using gates
5. 3-variable function using IC 74151(8:1 MUX)
6. 8 Demux and 3:8 Decoder using IC74138.
7. To realise the following flip-flops using NAND Gates. (a) Clocked SR Flip-Flop (b) JK Flip-Flop.
8. To realize the following shift registers using IC7474 (a) SISO (b) SIPO (c)PISO (d) PIPO.
9. To realize the Ring Counter and Johnson Counter using IC7476.
10. To realize the Mod-N Counter using IC7490.
11. Build Indoor Air Quality Monitoring System using IoT Platform
a. Monitored Parameters: Temperature, Humidity, CO2, VOC
b. Function1: Generate notifications and alerts in case of parameters beyond limits
12. Function2: Mix fresh air in case of CO2 level crossing threshold level of 1000ppm Build Smart
Farming application using IoT Platform
a. Monitored Parameters: Soil Moisture, Rainfall, Weather Forecast
b. Function1: Switch ON irrigation pump intelligently based on monitoring parameters
13. Build Smart Parking application using IoT Platform

a.Monitored Parameters: Vehicle detection
b. Function1: Provide information to user about free space in parking slots
14. Build Smart Home system using IoT Platform

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