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Arduino Lecture 2 - Electronic, LEDs, Communications and Datasheets

From eoinbrazil, 6 months ago

Continuing the coverage of the Arduino platform with some electron more

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Slideshow transcript

Slide 1: Electronics, LEDs, Communications and Data-sheets CS4062 - Eoin Brazil - Semester 2 - 2008

Slide 2:Ohm’s Law

Slide 3:Power

Slide 4: Calculating power using resistance and current or voltage

Slide 5: Kirchhoff’s Laws first law / current law The current flowing through a given circuit point is equal to the sum of the currents flowing into that point and is equal to the sum of currents flowing out of that point. Resistors in series - RTOTAL = R1 + R2 VOUT = VIN * R2 / (R1 + R2) e.g. 5V input, 2 x 1 k Ohm Resistors 5V * 1k / (1k + 1k) ... 5V * 1k/2k ... 5V * 0.5 = 2.5V = VOUT

Slide 6:Kirchhoff’s Laws second law / voltage law The sum of the voltage differences around a closed circuit is zero. Resistors in parallel - RTOTAL = 1 / (1/R1 + 1/R2)