computer

source

power supply that forces electrons to flow through the path

path

they carry electricity through the circuit

switch

control mechanism that permit or cut off the flow of electrons

load

components that consume elctrical energy to perform work

open circuit

a circuit with a physical gap in the electron path

closed circuit

a continuous, unbroken loop where electrons leave the source, travel through the circuit and return to the source

short circuit

an unintended low-resistance connection that redirects current away form the load

series circuit

contains only one continuous pathway for electricity to travel

parallel circuit

features multiple branching paths for current flow

voltage

the electrical push or pressure and is measured in VOLTS

current

the flow rate of electric charge moving through a conductive circuit, measured in amperes

resistance

opposition to the flow of electric current, restricting electorn movement and is measured in ohms

reset switch

whats this

digital pins

whats this

TX RX LEDs

what is this

ICSP Header

what is this

microcontroller

what is this

analog input pins

whats this

power port

whats this

voltage regulator

whats this

crystal oscillator

whats this

usb connector

whats this

usb interface chip

whats this

microcontroller

brain of the arduino

analog input pins

they read analog signals from sensors

power pins

they contain 3.3V, 5V, Ground, and vin pins to provide or receive power from devices

USB port

used to upload the code from computer

power jack

allows you tu power your board with an external power adapter

reset button

it restarts the micro controller

voltage regulator

it regulates voltage so the board can function properly

crystal oscillator

keeps track of timing for when something needs to occur

TX RX Leds

these display data being sent or transferred and received through the usb cord

ICSP header

allows you to directly program the microcontroller or communicate with other decvies using SPI