Description
The Arduino Uno SMD R3 is a microcontroller board based on the ATmega328. has 14 digital input/output pins (of which 6 can be used as PWM outputs), 6 analog inputs, a 16 MHz crystal oscillator, a USB connection, a power connector, an ICSP connector, and a power button. reset. Contains everything needed to support the microcontroller; Simply connect it to a computer with a USB cable or plug it into an AC-DC adapter or battery to start.
The Uno differs from all previous boards in that it does not use the FTDI USB-to-serial driver chip.
Additional features that come with the R3 version are:
- ATmega16U2 instead of 8U2 as USB to Serial converter.
- pinout 1.0: added SDA and SCL pins for TWI communication placed close to the AREF pin and two other new pins placed close to the RESET pin, the IOREF that allows the shields to adapt to the voltage supplied by the board and the second is a non-connected pin , which is reserved for future purposes.
- RESET circuit
FEATURES::
- Microcontroller: ATmega328P
- Operating voltage: 5V
- Input voltage (recommended): 7-12V
- Input voltage (limit): 6-20 V
- Digital Pins: I/O 14 (of which 6 provide PWM output)
- Digital PWM: I/O Pins 6
- Analog Input Pins: 6
- 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 the bootloader
- SRAM: 2 KB (ATmega328P)
- EEPROM: 1 KB (ATmega328P)
- Clock speed: 16 megahertz
- LED_BUILTIN: 13
- length: 68.6 mm
- Width: 53 .4 mm
- Weight: 25 g
