References: Breadboard Wiring and Electrical Fundamentals¶
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Breadboard - Wikipedia - Describes how a solderless breadboard's terminal strips and bus strips connect holes electrically, including standard row and rail layout, spring-clip construction, and DIP-compatible spacing -- the exact anatomy this chapter's breadboard rows and rails explain.
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Ohm's law - Wikipedia - Covers the V = IR relationship connecting voltage, current, and resistance, its empirical basis, and the limits of its applicability -- the core equation this chapter uses to size a safe current-limiting resistor for an LED.
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Light-emitting diode - Wikipedia - Explains LED electrical polarity (anode versus cathode), the forward-voltage table for different LED colors, and the standard series-resistor current-limiting circuit -- directly matching this chapter's LED polarity and current-limiting-resistor sections.
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Make: Electronics: Learning Through Discovery (3rd Edition) - Charles Platt - Maker Media / O'Reilly - Credited with pioneering a hands-on "learning by discovery" method using unique 3D-style breadboard diagrams and deliberate trial-and-error experiments, teaching breadboard wiring by building and occasionally breaking circuits rather than reading theory first.
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Practical Electronics for Inventors (4th Edition) - Paul Scherz and Simon Monk - McGraw-Hill - Credited with popularizing a detailed water-analogy diagram (voltage as pump pressure, current as flow rate, resistance as pipe constriction) that gives Ohm's Law an intuitive physical picture beginners retain.
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How to Use a Breadboard - SparkFun Learn - Step-by-step tutorial on breadboard anatomy, power rails, and terminal strips, ending with a worked LED-and-resistor circuit example that mirrors this chapter's own breadboard-to-LED wiring sequence.
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What is Ohm's Law - GeeksforGeeks - Defines Ohm's Law's V=IR relationship with worked numeric examples and unit conversions, reinforcing the voltage/current/resistance calculations this chapter performs to size a current-limiting resistor.
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Resistors - SparkFun Learn - Explains resistor color-code reading and a worked current-limiting-resistor calculation for an LED circuit, directly extending this chapter's resistor and current-limiting-resistor sections with a second worked example.
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Pull-up Resistors - SparkFun Learn - Explains why an unconnected digital input pin "floats" and reads unpredictably, and how a pull-up (or pull-down) resistor forces a known default state, matching this chapter's pull-up/pull-down resistor comparison table.
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Forward Voltage and KVL - Adafruit Learn - Uses Kirchhoff's Voltage Law and Ohm's Law together to derive the exact current-limiting-resistor formula for an LED circuit, the same R = (Vsupply - Vforward) / Irated calculation this chapter teaches.