What is Arduino ?
Arduino is an open source platform used to build electronics projects.
Arduino consists of a programmable board (often called a microcontroller) and software, or IDE. development) that runs on its microprocessor, which is used to write and upload computer code to the physical board.
Arduino board designs use various microcontrollers and microprocessors. Typically, the hardware consists of an Atmel AVR microcontroller, connected under the "minimum system" configuration.
Additionally, expansion cards known as Shields can be connected on top of the Arduino to include additional functionalities: control motors, connect to the Internet, provide wireless communication, control an LCD screen, etc.
Shields are often also called Shield or Hat
