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SunFounder R3 Board¶

../_images/uno_r3.jpg

Note

The SunFounder R3 board is a mainboard with almost the same functions as the Arduino Uno, and the two boards can be used interchangeably.

SunFounder R3 board is a microcontroller board based on the ATmega328P (datasheet). It has 14 digital input/output pins (of which 6 can be used as PWM outputs), 6 analog inputs, a 16 MHz ceramic resonator (CSTCE16M0V53-R0), a USB connection, a power jack, an ICSP header and a reset button. It contains everything needed to support the microcontroller; simply connect it to a computer with a USB cable or power it with a AC-to-DC adapter or battery to get started.

Technical Parameters

../_images/uno.jpg

  • MICROCONTROLLER: ATmega328P

  • OPERATING VOLTAGE: 5V

  • INPUT VOLTAGE (RECOMMENDED): 7-12V

  • INPUT VOLTAGE (LIMIT): 6-20V

  • DIGITAL I/O PINS: 14 (0-13, of which 6 provide PWM output(3, 5, 6, 9-11))

  • PWM DIGITAL I/O PINS: 6 (3, 5, 6, 9-11)

  • ANALOG INPUT PINS: 6 (A0-A5)

  • DC CURRENT PER I/O PIN: 20 mA

  • DC CURRENT FOR 3.3V PIN: 50 mA

  • FLASH MEMORY: 32 KB (ATmega328P) of which 0.5 KB used by bootloader

  • SRAM: 2 KB (ATmega328P)

  • EEPROM: 1 KB (ATmega328P)

  • CLOCK SPEED: 16 MHz

  • LED_BUILTIN: 13

  • LENGTH: 68.6 mm

  • WIDTH: 53.4 mm

  • WEIGHT: 25 g

  • Port: A4(SDA), A5(SCL)

What’s More