Arduino uno
r3 atmega16u2 atmega328
features
-microcontroller - atmega328
-operating voltage - 5v
-input voltage (recommended) - 7-12v
-input voltage (limits) - 6-20v
-digital i/o pins -14 (of which 6 provide pwm output)
-analog input pins- 6
-dc current per i/o pin - 40 ma
-dc current for 3.3v pin - 50 ma
-flash memory - 32 kb (atmega328) of which 0.5 kb used by bootloader
-sram- 2 kb (atmega328)
-eeprom -1 kb (atmega328)
-clock speed - 6 mhz
application
smart homes (internet of things iot)
traffic signal control
medical
automatic vehicle control
robotics
art and education
industries