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Wednesday, December 19, 2012

Common Electronic Components used with Arduino


Component:

Schematic:

Image:

Resistor, units = Ohms Ω
K = 1000, M = 1000000

Resistor values can be determined by "decoding" the color
stripes on the device. The first two colors are the value, the third stripe
is a multiplier (number of zeros to add). The fourth stripe is usually
metallic and indicates the tolerance.

Schematic 1

Resistor values

Potentiometer (adjustable / variable resistor)
Units = Ohms Ω
K = 1000, M = 1000000

Potentiometers may have a numerical value printed on the side or
bottom. Read this similar to the color stripes. In the image, you can see a
value of 103; In a color code, this would be Brown-Black-Orange = 10000 ohms
or 10K ohms.

Schematic 2

Potentiometers

Photo Resistor, units = Ohms Ω
K = 1000, M = 1000000

Schematic 3

Photo Resistor

LED (Light Emitting Diode)
The short leg connects to the ground or negative, and long leg to a positive
voltage source in your circuit.

Schematic 4

LED

Diode
The stripe on the barrel indicates the cathode and corresponds to the
"T" side of the schematic.

Schematic 4

Diode

Switch (pushbutton, toggle, momentary contact)
Other switch configurations include:
DPST - Double
pole, single throw
DPST
SPDT - Single
pole, double throw
SPDT
DPDT - Double
pole, double throw
DPDT

SPST - Single pole, single throw:
SPST
SPST

Switch

Relay
The 5-pin configuration pictured corresponds closely to the
schematic, with the 2-pin end for the (electromagnet) coil, and the 3-pin
connection for the switch.

Relay

5-pin configuration

Transistor - NPN

Transistor

NPN

Ground
The Arduino UNO modules have three pins identified as a ground connection.
This is usually connected to the negative connection of your power source as
well.

Ground

Arduino UNO


Battery
a 9v battery clip
(red=positive,
black=negative):

Battery

Battery

9v battery clip

Check out Arduino Workshop - Project 01: Blinking LED from one of our In-Store Clinics.

Stayed tuned for more Arduino workshops posted here!

For more assistance contact Technical Support here.

1 comment:

  1. Was Adruino uses a nkk switch? The table for the different electronic part is very informative.

    ReplyDelete