This is a support page for day 6 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 6: Electromagnetism, Relays, Inductors, & RF filters
Goals:
-
- Explain why a pull-down resistor is important
- Build an electromagnet
- Explain what a relay does
- Understand what an inductor does
- Explain how a filter works
Vocabulary:
-
- Pull-down resistor
- Electromagnet
- Relay
- Back EMF
- Inductor
- Bypass capacitor
- Low-pass filter
Relay – schematic diagram, wiring
Schematic:
Build:
No code needed.
High Pass Filter – schematic diagram, wiring
Schematic:
Build:
No code needed.
Homework:
-
- Watch Inductors Explained: https://www.youtube.com/watch?v=KSylo01n5FY
