I2C Pins UNO R3 MEGA328P ATMEGA16U2 For Arduino Compatible
UNO R3 MEGA328P ATMEGA16U2 for Arduino Compatible
Quick Detail:
UNO R3 2012 launched an easy to use open-source controller hardware
and Arduino UNO and no major changes, the biggest difference is
that USB to serial part of the circuit switch is a ATMega16U2
microcontroller, whichthe cost increase, the software part of the
same as before, no major changes.
Description:
Pin changes plus two I2C pins (SDA and SCL: next to the AREF pin,
the Analog 4 and 5 copy, not the additional I2C interface), added
two pins, theRESET next one is IOREF, , allowing the expansion
board to adapt to on-board voltage, this pin is just told to expand
the board's current on-boardvoltage (such as UNO is 5V, the power
supply pin can be seen as copy, does not provide the level
pull-up), and the other is after inactiveplaceholder pins.
Specifications:
MicrocontrollerATmega328
Operating Voltage5V
Input Voltage (recommended)7-12V
Input Voltage (limits)6-20V
Digital I/O Pins14 (of which 6 provide PWM output)
Analog Input Pins6
DC Current per I/O Pin40 mA
DC Current for 3.3V Pin50 mA
Flash Memory32 KB (ATmega328) of which 0.5 KB used by bootloader
SRAM2 KB (ATmega328)EEPROM1 KB (ATmega328)
Clock Speed16 MHz
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