EIM Lab-OnThe-Go Manual de usuario

Table of Contents

01 - Learn Electronics with Confidence ...................................................

02 - Setting Up a Miniature Electronics Lab .............................................

Breadboard ................................................................................

Power Supply .............................................................................

Multimeter .................................................................................

Oscilloscope ..............................................................................

Function Generator ....................................................................

03 - Prepare Componets and Tools .........................................................

Wires ..........................................................................................

Resistors .....................................................................................

Capacitors ..................................................................................

Operational Amplifier ................................................................

Diodes ........................................................................................

Bipolar Junction Transistor ........................................................

555 Timer ...................................................................................

04 - Get Started with Circuits ..................................................................

4.1 - Simple LED Circuit .............................................................

4.2 - Touch Sensor ......................................................................

4.3 - Half Wave Rectifier .............................................................

4.4 - Astable Multivibrator Circuit ...............................................

4.5 - Soil Moisture Detector ........................................................

4.6 - Flashing LED with 555 Timer ..............................................

4.7 - A Lousy Hypnotizer ............................................................

4.8 - Breathing LED ....................................................................

4.9 - Inverting Amplifier ..............................................................

4.10 - Non-inverting Amplifier ....................................................

Apx A - User Guidance of the Power Supply (MEGO) ..............................

Apx B - User Guidance of the Multimeter (VEGO) ...................................

Apx C - Integrated Signal Generator and Oscilloscope (Zoolark) ............

Apx D - Commonly Used Electrical Symbols ...........................................

Learn Electronics with Condifence

Learning electronics, circuits and hardware can be a fascinating journey,

but it always comes with its own set of challenges:

• Abstract concepts that may be difficult to understand

• Heavy equations and calculations are required to learn the subject

• Limited access to equipment that is necessary for hands-on learning

• Safety concerns that may cause injury or damage to equipment

• Almost impossible to self-practice outside of a professional lab

Today we are living in a world of abundance. Our young generations

should have the opportunity to explore electronics and develop their

creativity and problem-solving skills, without being held back by financial

barriers of accessing necessary equipment or outdated teaching methods

that lack hands-on experiences.

CH 1

1. Learn Electronics with Condifence

Lab-On-The-Go ManualLOTG

Studies have shown that the learning and cognition processes are most

effective when your eyes, hands and brain are actively engaged. With

Lab-On-The-Go, learning electronics is no longer restricted on theories

in books or pure simulations on a screen, more importantly, you own the

opportunity to hands-on tryout real components and establish deeper

comprehensions during the building and testing process.

We hope this Lab-On-The-Go kit unlocks your passion of electronics and

become your best companion on the journey of learning electronics. Do

not just learn from the book, learn from the mistakes!

As a leading supplier in Educational Technology, we are committed to

offering solutions that help to address those issues existed in electronics

learning and teaching. The hardware kit you just opened is called Lab-On-

The-Go, a set of portable and handy equipment and tools that allows you

gain hands-on practices while learning the concepts of electronics and

circuits.

Setting Up a Miniature Electronics Lab CH 2

The Lab-On-The-Go (or LOTG) learning kit includes a complete set of

portable and handy equipment that allows you learn, build and test many

fancy circuits with minimum setting up efforts and dependencies. Once

first open the package, you should observe 4 tools:

If you have no prior knowledge of using these tools, please take a moment

to read the simple starter guidance before jumping ahead.

A breadboard is a reusable prototyping tool allows you to build and test

electronic circuits without the need for soldering. It consists of a plastic

board with numerous holes drilled into it. The holes are arranged in a

grid pattern, and are used to insert components and wires. A full-sized

breadboard has 820 holes whereas a half-sized breadboard has 410 holes.

In LOTG hardware, you will find a half-sized breadboard.

2. Setting Up a Miniature Electronics Lab

Breadboard

Lab-On-The-Go ManualLOTG

An X-ray diagram of the breadboard internal holes is illustrated below.

Holes with interconnected wires indicate they are electrically conductive.

Typically, the 4 rows serve as power rails and 30 columns are reserved for

wiring components.

In electronics, a functional circuit should have a closed loop for the path of

electrical current. While building circuits on a breadboard, it is important

to plan ahead and carefully consider the placement of each component.

The figure below shows some common mistake for first time breadboard

users. More breadboard circuiting examples and tricks will be found in

later sections of this tutorial.

Setting Up a Miniature Electronics Lab CH 2

A DC power supply is an essential tool in any electronics laboratory. It

provides a stable and adjustable source of DC voltage, which is necessary

to feed electrical power to the rest of elements in a circuit. The power

supply included in the LOTG hardware kit is called MEGO, which is a

rechargeable breadboard compatible power supply with features to adjust

and display output voltage.

Power Supply

Lab-On-The-Go ManualLOTG

The MEGO power supply can directly plug-fit to the breadboard power

rails without using extra wires or power outlets. As shown in the figure

below, when MEGO is plugged on one side of the breadboard, the two

power rails have the same voltage as displayed on the power supply.

Make sure the polarity markings on breadboard match to the “+” and “-“

markings on the power supply.

The two power ports on each side of MEGO were internally shorted, which

means the power rails of breadboard can only have a single voltage. If

such a setting is not desired, you may access the voltage from USB output

port using the alligator clips.

The MEGO power supply is rated for 5W which is designed for low power

circuits built on a breadboard. For power thirsty applications you need

to use a benchtop power supply or our Pro-series design (expected to

release in early 2024).

More detailed user manual and technical specifications of MEGO can be

found in Appendix A.

Do not use this USB port to charge your phones or tablets since it

may generate other than 5V output voltages.

Setting Up a Miniature Electronics Lab CH 2

A multimeter is another important tool commonly seen in most

electronics labs. A digital multimeter, also known as DMM, is capable to

measure various electrical properties such as voltage, current, resistance

and conductivity, which are key parameters while diagnosing and

troubleshooting electrical circuits.

The compact DMM included in the LOTG kit which is named VEGO. It

requires two AAA batteries to operate. Before you start, open the lid from

back and mount two batteries. VEGO is very power efficient which usually

gives over 1 year of battery life.

On technical side, VEGO is a versatile and user-friendly multimeter ideal

for electronics experiments and projects. It has auto-ranging feature

that automatically adjusts to display the most appropriate range for the

quantity being measured. VEGO can also measure capacitance and

temperature making them useful in more advanced applications.

Multimeter

Lab-On-The-Go ManualLOTG

For experimental purposes, you will also find the accessory alligator clips

being particularly handy. By attaching to the wires being measured, your

hands can be freed for other work. The VEGO multimeter has a feature

that automatically switches off the device if it is not used for 5 minutes.

This helps to extend the battery life of the device and ensures that the

battery is not drained unnecessarily.

More detailed technical specifications can be found in Appendix B.

An oscilloscope is a sophisticated instrument used to measure, analyze,

and display electrical signals. It provides a visual representation of

electrical waveforms in real-time, making it an essential tool in electronics

labs. Most modern oscilloscopes you have seen are like the one shown

below, with advanced features and capabilities such as high bandwidths,

fast sampling rates, multiple channels and memory space. However, these

advanced oscilloscopes can be prohibitively expensive, typically costing

four figures, making them unaffordable for schools and individuals.

Oscilloscope

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