A Developer's Introduction to Electronics
summary
Covers Ohm’s law to compute currents and power, measures body resistance around 40k–80k Ω, and explains resistors, capacitors, diodes, transformers, relays and transistors with working circuits. Shows voltage dividers and potentiometer readings mapped 0–1023 on an Arduino analog pin, PWM dimming using 0–255 duty values, a transistor switching an LED, and a relay switching a mains nightlight. Demonstrates an Arduino–Redis bridge using Fermata and johnny-five in a Node app called rebola; all demos function on stage.
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chapters (17)
- 0:00Start
- 5:25Difference between Alternating Current and Direct Current
- 10:12The Basic Components
- 16:36Potentiometer
- 20:29Voltage Divider
- 24:02Capacitors
- 24:30Capacitor
- 26:37Low-Pass Filter
- 27:19High-Pass Filter
- 29:02Diodes
- 30:53Full Wave Bridge Rectifier
- 34:24Transformer
- 44:16Pulse Width Modulation
- 45:33Relay
- 48:17Simple Circuit
- 51:13Flyback Diode
- 51:50Night Light
