Are you an Arduino maker, able to make things by following how-to guides and are confident with writing or modifying sketches, yet you are not so confident about things like calculating transistor currents, voltage drops and using capacitors as filters?
You are not alone. I have been teaching Arduino and Raspberry Pi topics for years. During this time I have realized that while these platforms are great for helping you to start tinkering with electronics, you will not be able to truly enjoy their power until you have understood basic electronics.
This is what this course is about. It is about helping you achieve a better level of understanding of the basic electronics principles and components that are commonly used in making on platforms like the Arduino and the Raspberry Pi.
I have designed this course for anyone with a basic understanding of electronics, who has already spent time tinkering with Arduinos.
By the end of this course, you will have learned how to use commonly used components found in Arduino projects. You will also have learned how to do the relevant measurements and calculations to help you select appropriate components for your projects.
To complete this course, you will need a few cheap and common components and tools: resistors, capacitors, transistors, LED, diodes, and batteries. You will also need a multimeter, a small breadboard and jumper wires. All of these are probably things that you already have.
List of parts
The tools you will need
The parts you will need
Electronics, basic concepts
Electricity, particles and current
What is voltage?
What is voltage? (supplemental)
What is current?
What is resistance?
Kirchhoff’s Law example
Solution to the Kirchhoff’s Law problem
Introduction to resistors
A simple resistor circuit
Resistor power rating
The variable resistor
Voltage divider with current draw
Pull-up and pull-down resistors
Introduction to capacitors
Capacitors as energy store
Capacitors as filter
Capacitors in series and in parallel
What is the RC time constant
An RC time constant experiment
Introduction to diodes
Voltage drop and current regulation
Measuring the voltage drop in a diode
The voltage dropper circuit
A circuit that includes a zener diode with a load
Reverse polarity protection
How to calculate the appropriate resistor value for an LED
Introduction to transistors
Calculating the currents in a transistor circuit
A circuit with the 2N2222 bipolar transistor
A circuit with the TIP122 and a high-power LED
A circuit with a TIP122 and a motor
Introduction to IC voltage regulators
Fixed voltage regulator
A variable voltage regulator circuit
How to calculate the input resistors for a variable voltage regulator
What did you learn? What’s next?