Arduino Libraries

Standard Libraries

• EEPROM - reading and writing to "permanent" storage
• Ethernet - for connecting to the internet using the Arduino Ethernet Shield
• Firmata - for communicating with applications on the computer using a standard serial protocol.
• GSM - for connecting to a GSM/GRPS network with the GSM shield.
• Keypad - for connecting  4x4 or 4x3 keypad
• LiquidCrystal - for controlling liquid crystal displays (LCDs)
• SD - for reading and writing SD cards
• Servo - for controlling servo motors
• SPI - for communicating with devices using the Serial Peripheral Interface (SPI) Bus
• SoftwareSerial - for serial communication on any digital pins. Version 1.0 and later of Arduino incorporate Mikal Hart's NewSoftSerial library as SoftwareSerial.
• Stepper - for controlling stepper motors
• TFT - for drawing text , images, and shapes on the Arduino TFT screen
• WiFi - for connecting to the internet using the Arduino WiFi shield
• Wire - Two Wire Interface (TWI/I2C) for sending and receiving data over a net of devices or sensors.