The art of physical computing – week 2

Physical computing is the act of making machines react to people

Ohm’s Law

Voltage(V)= Current(I) * Resistance(R)

Types of resistors

Resistors “resist” how many electrons flow through a current

-Carbon composite resistors

-Carbon film resistors(Most common)

-Metal film resistors

Variable resistors

-PhotoCell- Not polarized (Can go either way)

-Rheostat

-Force sensitive

-Thermostor Resistor

-Slide Potentiometer

Series circuits- In this circuit there are no branches and thus we have the same current everywhere

Parallel Circuit- there are branches so currents are divided

LEDS-Light emitting diode

Diodes : A diode is a two-terminal electronic component that conducts current primarily in one direction (asymmetric conductance). It has low (ideally zero) resistance in one direction and high (ideally infinite) resistance in the other.

Anode=+, Cathode=-

Breadboards

ATTENTION!!! Avoid removing or changing components o na breadboard whenever the board is powered you risk shocking or dying D:

Transistor

These are used to amplify or switch electronic signals (Digital switch)

Tutorials

Ohms Law

Photoresistor

Series and parallel circuits

Light emitting diode

Putting the work to practice in real life