List of Simple Arduino Projects

Any AVR microcontroller based board which follows the standard arduino schematic and is flashed with the arduino bootloader can be called an arduino board. The arduino is refered to as open source hardware, since the standard schematic is open to everyone and anybody can make their own version of arduino board following the standard schematic

Check these Arduino Projects to Learn working with Arduino Board. 

  Getting Started with Arduino

How to Connect a Keyboard with 16x2 LCD using Arduino	How to Interface 4 Bit LCD with Arduino	How To Save a Text In The EEPROM of The Arduino
How to Connect PC with 16x2 LCD using Arduino	How to Interface a PS2 Keyboard with Arduino	How to Send Serial Data from Arduino
How To Connect The EEPROM of The Arduino To The Serial Port of a PC	How to Interface PS2 Mouse with Arduino	How to Test the Built-In EEPROM of the Arduino
How to Control Device using Mouse Connected with Arduino	How to Interface SD Card with Arduino	How to Test The SPI Module of Arduino
How To Create Animation on 16x2 LCD Using Arduino	How to Interrupt the Arduino Board Periodically	How to Use Analog Input and Analog Output of an Arduino Board
How To Create Custom Characters on LCD Using Arduino	How To Make a Simple Variable Frequency Generator Using Arduino	How to Use Arduino to Display Sensor Values on LCD
How To Create Running Sine Wave Display In LCD Using Arduino	How To Make Dynamic Sensor Display on LCD Using Arduino	How To Use Digital Input And Digital Output Of Arduino
How to Display Random Smiley on LCD using Arduino	How to Make LCD Scrolling Display using Arduino	How To Use Interrupts With Arduino Board
How To Display Smileys on LCD Using Arduino	How to Make SD Card to Store Sensor Data File using Arduino	How to Use PS2 Keyboard to Store Text in SD Card using Arduino
How to do Serial Debugging with Arduino	How To Read And Write The EEPROM Of Arduino	How to Use PS2 Mouse as an Accelerometer with Arduino
How to Generate a Variable Frequency Sine Wave Using Arduino	How to Receive and Send Serial Data using Arduino	How to Use PS2 Mouse to Move a Character in LCD
How To Generate Square Wave Using Arduino	How To Save a Sensor Value In The EEPROM Of The Arduino