The Arduino standard libraries are a collection of libraries that comes standard with the Arduino IDE. The libraries offer a convenient way of performing common tasks that one might need while working with a microcontroller such as accessing the EEPROM, controlling an LCD display, accessing an SD card, and manipulating a servomotor or stepper motor.

Standard Headers

The Arduino standard libraries are made of 13 headers.

<EEPROM.h>	<Ethernet.h>	<Firmata.h>	<GSM.h>
<LiquidCrystal.h>	<SD.h>	<Servo.h>	<SPI.h>
<SoftwareSerial.h>	<Stepper.h>	<TFT.h>	<WiFi.h>
<Wire.h>

An additional set of libraries only available in some models:

<Audio.h>1	<Scheduler.h>1	<USBHost.h>1	<Esplora.h>2
<ArduinoRobot.h>3	<Bridge.h>4	<YunServer.h>4	<YunClient.h>4

¹ - Arduino Due
² - Arduino Esplora
³ - Arduino Robot
⁴ - Arduino Yún