This is a support page for day 1 of an 8-session class is a basic introduction to both electronics and programming the Arduino microprocessor. The intent is to prepare the student for what is currently popular in the maker world, rather than an electronics or engineering degree, and includes some things of interest to amateur radio enthusiasts.
Day 1, Day 2, Day 3, Day 4, Day 5, Day 6, Day 7, Day 8
Day 1: How electricity works, drawing a circuit, resistors, using a breadboard
Goals (with refresher links):
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- Explain how electricity works & flows
- Explain the difference between volts & amps
- Use circuit symbols to draw a simple circuit
- Explain what a resistor does
- Read resistor codes
- Use Ohm’s Law to calculate a resistor value for an LED
- Use a breadboard to create a circuit
Vocabulary:
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- Arduino
- Volts
- Amps
- Ohm’s Law
- LED
- Resistor
- Breadboard
- Leads
1 LED schematic diagram

Build It:

2 LED’s in parallel:


3 LED’s in parallel:


1 LED w/ a switch:


Day 1 Homework
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- Take apart and build LED + resistor in parallel (3x)
- Watch How to Use a Breadboard: https://www.youtube.com/watch?v=6WReFkfrUIk
- Watch LED Basics: https://www.youtube.com/watch?v=Yo6JI_bzUzo
- Watch Basic Electricity – Resistance and Ohm’s law: https://www.youtube.com/watch?v=Yo6JI_bzUzo
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