Useful Libraries

Standard Libraries

EEPROM - reading and writing to "permanent" storage

Servo - for controlling servo motors

WiFi - for connecting to the internet using the WiFi module

Keyboard - Send keystrokes to an attached computer.

Mouse - Control cursor movement on a connected computer.

External Hardware Libraries

LiquidCrystal - for controlling liquid crystal displays (LCDs)

SD - for reading and writing SD cards

Stepper - for controlling stepper motors

Servo - for controlling servo motors

Tft_eSPI – for driving the display

MPU6050 – for interfacing with the accelerometer

DS3231 – for interfacing with the real time clock

Communication Protocol Libraries

SPI - for communicating with devices using the Serial Peripheral Interface (SPI) Bus

SoftwareSerial - for serial communication on any digital pins.

Wire - Two Wire Interface (TWI/I2C) for sending and receiving data over a net of devices or sensors.