Where should Electrical and Electronics Engineering students start learning programming?

Electrical and Electronics Engineering is an extremely broad field. It is closely connected to everyday life while also serving as the foundation for many modern technologies, including automation, robotics, the Internet of Things (IoT), telecommunications, renewable energy, electric vehicles, and hardware-based artificial intelligence. However, because the field is so broad, beginners often feel overwhelmed. Some start immediately with Arduino, others jump into circuit repair, while some look at complex electronic schematics and quickly become discouraged because they do not understand how the components work.

The problem is not necessarily that Electrical and Electronics Engineering is too difficult. More often, learners simply do not have a suitable learning path. When you start correctly—moving from fundamentals to applications and from simple circuits to real-world systems—you will discover that this field is fascinating, highly practical, and full of long-term development opportunities.

Why should you learn Electrical and Electronics Engineering?

In the modern technological era, almost every device around us involves electricity and electronics. Light bulbs, electric fans, phone chargers, washing machines, refrigerators, computers, sensors, cameras, controllers, and automated production lines in factories are all based on fundamental principles of electricity, electronic components, and control circuits.

Learning Electrical and Electronics Engineering does more than teach you how to repair or assemble devices. More importantly, it helps you understand how technical systems operate. When you understand how electric current flows, how signals are processed, where sensors send their data, and how microcontrollers control electrical loads, you gain the ability to analyze, design, improve, and troubleshoot real-world systems.

This is also a highly practical field with many possible career paths. Learners can pursue residential electrical systems, industrial electrical engineering, basic electronics, equipment repair, circuit design, microcontroller programming, automation, IoT, robotics, embedded systems, or technical maintenance in factories.

Therefore, whether you are a high school student, a university student, a working professional who wants to change careers, or simply someone who enjoys technology and wants to learn independently, Electrical and Electronics Engineering is a field well worth exploring.

What common mistakes do beginners make?

One common mistake is learning according to the principle of “studying whatever looks interesting.” One day, a learner watches an Arduino video; the next day, they study switch-mode power-supply repair; and the following day, they examine an audio amplifier circuit. However, they may still have no clear understanding of voltage, current, resistance, capacitors, transistors, or diodes.

This learning method may feel exciting at first, but over time, it often causes learners to lose direction.

Another mistake is rushing into practical work while neglecting the fundamentals. Hands-on practice is extremely important in engineering, but without understanding the underlying principles, you are merely following instructions. When the circuit does not work, a component burns out, a signal is incorrect, or the measurement results are unexpected, you will not know where to begin troubleshooting.

On the other hand, some learners focus too heavily on theory. They study many formulas but perform very few measurements, build very few circuits, and rarely observe real physical phenomena.

Electrical and Electronics Engineering requires both analytical thinking and practical skills. The most effective way to learn is to combine the two: understand the necessary principles, then verify them through real circuits, real measurements, and real mistakes.

Start with basic electrical fundamentals

If you are a complete beginner, the first foundation you need is a clear understanding of basic electrical concepts. These concepts may appear simple, but they strongly influence your ability to continue learning in the long term.

You need to understand what voltage is, what electric current is, what role resistance plays, how electrical power is calculated, and why different loads connected to the same power source may draw different amounts of current.

Ohm’s law is essential knowledge. The familiar formula (U = I \times R) is not only used for solving exercises; it is also a valuable thinking tool for circuit analysis.

What happens to the current when resistance changes? Can a component tolerate an increase in supply voltage? When a load consumes a large amount of power, what type of wire and power supply should be selected? Questions like these appear constantly in both study and real engineering work.

You also need to clearly distinguish between direct current and alternating current. Direct current is commonly found in batteries, adapters, electronic circuits, and control systems. Alternating current is used in residential power grids, motors, transformers, and industrial electrical systems.

Understanding the difference between these two forms of electricity will make later topics easier to learn, especially when working with power supplies, rectifiers, transformers, and power electronics.

At the beginning, you do not need to study complicated formulas in great depth. The most important goal is to understand the underlying concepts and apply them to simple circuits.

Practise reading basic circuit diagrams and identifying the power source, load, switch, resistor, LED, fuse, diode, and common connection points within a circuit.

Become familiar with electronic components

After learning the basic electrical concepts, the next step is to study electronic components. Components are the language of electronic circuits. Without understanding them, reading circuit diagrams and analyzing operating principles will be extremely difficult.

Beginners should start with passive components such as resistors, capacitors, and inductors.

Resistors are used to limit current, divide voltage, create signal levels, or provide biasing for other components. Capacitors can be used for power-supply filtering, signal coupling, time-delay circuits, or voltage stabilization. Inductors commonly appear in power circuits, filters, oscillator circuits, and applications involving magnetic fields.

After that, you should study basic semiconductor components such as diodes, LEDs, BJT transistors, MOSFETs, and voltage-regulator integrated circuits.

Diodes allow current to flow primarily in one direction and are widely used in rectifier and protection circuits. Transistors can function as electronic switches or amplification devices. MOSFETs are extremely important in load-control circuits, switch-mode power supplies, and power systems.

Once you understand these components, you will begin to recognize the operating logic inside many real electronic devices.

An effective learning method is to avoid memorizing only component symbols and specifications. Instead, ask practical questions:

What is this component used for? Under what conditions does it operate? What symptoms appear when it fails? How can it be tested with a multimeter? Where is it commonly located within a circuit?

This approach connects theoretical knowledge much more closely with real-world applications.

Learn how to read circuit diagrams

Reading circuit diagrams is an essential skill for anyone studying Electrical and Electronics Engineering. A circuit diagram is like a map of an electrical system. When you can read it, you can understand how a circuit works, locate faults, replace components, improve a design, or build a new circuit yourself.

At first, practise reading simple circuits such as:

• An LED circuit with a current-limiting resistor

• A switch-controlled lamp circuit

• A bridge-rectifier circuit

• A 7805 voltage-regulator circuit

• A transistor-controlled relay circuit

• A light-sensor circuit using a photoresistor

Although these circuits are simple, they contain a great deal of fundamental knowledge.

When reading a circuit, do not try to understand the entire diagram at once, as this can quickly become confusing. Instead, divide the circuit into functional blocks:

• Power-supply block

• Input-signal block

• Processing block

• Control block

• Load or output block

This is an extremely important engineering mindset. A complex device is usually not one single incomprehensible system. It is generally a combination of several smaller functional blocks.

For example, in a transistor-controlled relay circuit, you can separate the system into the power source, the control signal applied to the base or gate, the switching transistor, the relay coil, the flyback-protection diode, and the controlled load.

Once you understand each section, the complete circuit becomes much easier to understand.

Develop measurement skills and electrical-safety awareness

It is difficult to make significant progress in Electrical and Electronics Engineering without knowing how to perform measurements and tests.

A digital multimeter should be one of the first tools a learner obtains. You should know how to measure DC voltage, AC voltage, and resistance; perform continuity tests; test diodes; identify polarity; and check several basic components.

When possible, you can later learn how to use an adjustable DC power supply, an oscilloscope, a signal generator, and a clamp meter.

Measurement skills involve more than placing test probes on a circuit and reading a number. You need to know where to measure, under what operating conditions the measurement should be taken, what results are reasonable, and which results indicate a problem.

This is one of the major differences between someone who has studied only theory and someone who can handle real technical problems.

Electrical safety must also be studied from the beginning. Low-voltage electronic circuits operating at 5 V or 12 V usually present relatively limited risks. However, working with 220 V mains electricity, switch-mode power supplies, large capacitors, motors, or industrial systems can be extremely dangerous.

Learners should develop the habit of disconnecting the power before making connections, checking insulation, avoiding contact with energized components, using appropriate fuses and protective devices, and never experimenting with high-voltage circuits without sufficient knowledge.

A good engineering learner does not merely know how to make a circuit work. They also know how to make it operate safely, stably, and reliably.

Practise with basic circuits

Once you have acquired the initial foundations, you should begin hands-on practice. Practical work transforms isolated pieces of knowledge into genuine ability.

There is no need to start with large projects. Small circuits that are easy to test and troubleshoot are much more suitable for beginners.

You can begin with a simple LED circuit to understand current-limiting resistors. After that, build an AC-to-DC rectifier circuit to study diodes and filter capacitors.

You can then experiment with:

• A 5 V voltage-regulator circuit

• A transistor-controlled relay circuit

• A light-sensor circuit

• A water-level alarm

• A DC motor-control circuit

• A simple battery-charging circuit with basic protection

When practising, the goal should not be to make the circuit work once and then immediately move on. Measure the voltage at different points, change component values, observe what happens, record the results, and ask yourself why the circuit behaves differently.

The process of observing and asking questions will help you understand the circuit far more deeply than simply copying an existing diagram.

Beginners should also practise circuit simulation using software such as Proteus, Multisim, Falstad, or Tinkercad Circuits.

Simulation cannot completely replace real hardware, but it allows you to experiment quickly, reduces the risk of damaging components, and makes it easier to understand how signals flow through a circuit.

When should you learn Arduino, Microcontrollers, and IoT?

Arduino, ESP32, Raspberry Pi, and IoT are highly attractive topics for beginners. They allow you to create products quickly, produce visible results, and develop applications that can be used in everyday life.

However, Arduino should not be viewed as the only possible starting point for learning Electrical and Electronics Engineering.

If you study Arduino without understanding voltage, current, transistors, relays, sensors, and power supplies, you may still be able to complete several simple projects. However, you will face difficulties as your projects become more complex.

For example, you may know how to write code that switches a digital pin on and off. However, if you do not know how to control a relay using a transistor, why a protection diode is required across a relay coil, or why a load current may exceed the current capacity of a microcontroller pin, your circuit may become unstable or damaged.

The appropriate time to learn Arduino is after you understand basic electronic components and can read simple circuit diagrams.

At that point, Arduino is no longer a “magic box.” Instead, it becomes a controller that connects software with hardware.

You will understand why pull-up resistors are needed, why sensors produce analog or digital signals, why a power module is required to control a motor, and why the power supply has such a significant influence on system stability.

After Arduino, you can learn ESP32 and create IoT projects such as temperature-monitoring systems, Wi-Fi-controlled devices, cloud-based data collection, smart-home systems, or warning and alarm systems.

This is a highly relevant learning direction in the modern technology landscape, but a strong electronics foundation is still necessary if you want to progress further.

A learning roadmap for beginners

A suitable learning roadmap should move from fundamentals to applications and from simple circuits to complete systems.

During the first stage, focus on basic electricity, Ohm’s law, electrical power, direct current, alternating current, multimeter use, and electrical-safety principles. This foundation helps you avoid rote learning and unsafe practices.

Next, study basic electronic components such as resistors, capacitors, diodes, transistors, MOSFETs, relays, voltage-regulator ICs, and common sensors.

Each component should be learned together with a small practical circuit. For example:

• When learning about LEDs, build an LED circuit.

• When learning about transistors, build a relay-control circuit.

• When learning about capacitors, observe a power-supply filter or time-delay circuit.

Once you are familiar with components, develop your ability to read circuit diagrams and analyze circuits according to their functional blocks.

This represents the transition from “knowing components” to “understanding systems.” At this stage, you can begin troubleshooting, improving circuits, and designing simple circuits independently.

Next, you can study microcontrollers using Arduino or ESP32.

Start with exercises such as reading push buttons, controlling LEDs, reading temperature sensors, controlling relays and motors, displaying information on an LCD, and communicating through Bluetooth or Wi-Fi.

At this stage, you will see how Electrical and Electronics Engineering combines with programming to create highly practical applications.

Once your foundation becomes stronger, you can choose a specialized direction.

If you are interested in factories, machinery, and production systems, study industrial electrical engineering, programmable logic controllers, variable-frequency drives, industrial sensors, and automatic control.

If you are interested in smart devices, study embedded systems, IoT, PCB design, and data communication.

If you are interested in repair work, study switch-mode power supplies, power circuits, household appliances, audio equipment, display systems, or specialized electronic systems.

Learn through projects, not only through theory

Electrical and Electronics Engineering is especially suitable for project-based learning. A small project can help you connect several different areas of knowledge at the same time.

For example, an automatic plant-watering system may include a soil-moisture sensor, a microcontroller, a relay or MOSFET, a water pump, a power supply, and a control program.

By completing this project, you learn not only about individual components but also about system design, power distribution, signal processing, load control, and troubleshooting.

However, beginner projects should be appropriate for your current ability. Do not start with complex robots, CNC machines, inverters, or high-power switch-mode power supplies.

Projects that are too difficult can quickly reduce your confidence. Instead, choose small but complete projects with a clearly defined input, processing stage, and output.

After completing many small projects, you will gradually gain the experience needed to build larger systems.

Maintaining a learning journal is also an excellent habit. Whenever you build a circuit, record the circuit diagram, the components used, the measured voltages, the problems you encountered, and how you solved them.

After several months, you will have built a highly valuable personal knowledge base. This method also reflects the mindset of professional engineers and technicians.

How much mathematics and physics do you need?

Many beginners worry that Electrical and Electronics Engineering requires exceptional mathematics and physics skills.

In reality, mathematics and physics are very important, but you do not need to master every topic before you begin.

At the introductory level, you should understand basic calculations, ratios, rearranging formulas, measurement units, power, energy, electric fields, magnetic fields, and several physical concepts related to electric current.

As you progress further—particularly into analog circuits, signal processing, switch-mode power supplies, automatic control, or telecommunications—you will need additional knowledge of functions, trigonometry, derivatives, integrals, complex numbers, and differential equations.

However, these subjects can be studied gradually as they become necessary. Do not allow fear of mathematics to prevent you from getting started.

The best approach is to learn mathematics and physics through real technical problems.

When calculating a current-limiting resistor for an LED, you are applying Ohm’s law. When calculating the power dissipated by a resistor, you are studying thermal energy. When learning about motors, relays, and transformers, you are studying magnetic fields. When measuring a waveform with an oscilloscope, you begin to understand how signals vary over time.

What tools should beginners prepare?

You do not need to purchase too many tools at the beginning.

A basic learning kit may include:

• A digital multimeter

• A breadboard

• Jumper wires

• A 5 V or 12 V DC power supply

• Several resistors and capacitors

• Diodes and LEDs

• Transistors

• Small MOSFETs

• Relays

• Push buttons

• Potentiometers

• Simple sensors

• An Arduino or ESP32 development board

With these tools, you can already complete many fundamental practical exercises.

As you become more serious about learning, you can add an adjustable DC power supply, soldering iron, solder, rosin or flux, cutting pliers, wire strippers, screwdriver sets, a basic oscilloscope, and several training modules.

However, tools are only a means to an end. What matters most is how you use them to observe, measure, analyze, and learn from your experience.

Beginners should prioritize equipment that is safe, easy to use, and suitable for low-voltage applications.

You should not independently disassemble or repair switch-mode power supplies, mains-powered devices, or high-power circuits without proper guidance and a clear understanding of the risks.

How long does it take to learn Electrical and Electronics Engineering?

The amount of time required depends on your objectives.

If you simply want to understand basic principles and build simple circuits, you may reach that level after several months of consistent study.

If you want to complete Arduino or ESP32 projects and work with sensors and basic load-control systems, approximately six months to one year is a reasonable period for a serious self-learner.

Becoming professionally competent takes longer. To read circuit diagrams, troubleshoot faults, design circuits, work with real systems, and deeply understand operating principles, you need sustained, long-term study.

Electrical and Electronics Engineering is a field that continues to expand the more you learn. Even experienced professionals must continue studying new technologies, standards, components, and design methods.

Therefore, instead of asking, “How long will it take me to finish learning?” a better question is, “What can I do better this month than I could last month?”

If you learn how to measure voltage this month, read a transistor circuit next month, build a sensor circuit the following month, and control a device with a microcontroller several months later, you are moving in the right direction.

Conclusion

Learning Electrical and Electronics Engineering should begin with the fundamentals. Beginners should not rush into overly complicated projects.

You first need to understand voltage, current, resistance, electrical power, basic components, circuit diagrams, measurement skills, and electrical safety.

After that, learning Arduino, ESP32, IoT, PLCs, or circuit design will become easier, more meaningful, and more in-depth.

Electrical and Electronics Engineering is not a field reserved only for people who are exceptionally talented in mathematics or naturally gifted in technology.

It is a field for people who are persistent, curious about how devices work, willing to practise, prepared to accept mistakes, and able to learn step by step.

Every circuit you build, every measurement you perform, and every fault you successfully repair is an important part of your technical development.

When you are just beginning, move slowly but steadily. Do not try to learn too many things at once.

Start with one simple circuit. Understand it clearly, measure it, modify it, and explain to yourself why it works.

When you repeat this process many times, you will gradually build a strong foundation that allows you to advance further into the world of Electrical and Electronics Engineering.