![]() ![]() These pins can receive any value compared to digital pins that only receive two values i.e HIGH or LOW ![]() There are 6 analog pins available on the board. When these pins receive 5V they are in the HIGH state and when they receive 0V they remain in a LOW state. These pins receive two values HIGH or LOW. You can use these pins as an input or output based on your requirement. There are 14 digital pins incorporated on the board. In this section, we’ll cover the pin description of each pin incorporated on the board. Hope you’ve got a brief look into the Arduino UNO REV3. The following figure shows the pinout diagram of Arduino UNO REV3. This board carries a built-in regulation feature that keeps the voltage under control when the board is attached to the external device.This pin comes in handy when the board hangs up in the middle of the running program, pressing this pin will clear everything up in the program and again runs the program from the beginning. A reset pin is included in the board that resets the whole board when it is pressed and takes the running program to the initial stage.The EEPROM is a non-volatile memory that keeps the code stored even when board power is removed. While the SRAM is the memory used to produce and manipulates variables when it runs. ![]() The flash memory is the location where the Arduino program (sketch) is stored.
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