Some famous equations
- Ohm’s law — V = I R
- Resistors in series — R = R1 + R2
- Resistors in parallel — 1/R = 1/R1 + 1/R2
For more information, read Chapters 5 and 6 of Electronics for Dummies by Cathleen Shamieh. This is available on-line from the UNC Asheville library.
Let’s experiment with our breadboards and a multimeter.
We’ve already done the digital inputs, let’s go on with the analog ones.
Some good electronics tutorials
Both SparkFun and Adafruit have good tutorials on basic electronics.
Here is long list of useful tutorials from SparkFun.
- Voltage, Current, Resistance, and Ohm’s Law
- Light-Emitting Diodes (LEDs)
- How to Use a Breadboard
- Analog vs Digital
- How to Read a Schematic
- Photocell Hookup Guide
Here are some longer electronic tutorials.
If you like tutorials with talking oscilloscopes, Circuit Playground is the place for you.