ARDUINO UNO R3

The Arduino UNO is the best board to get started with electronics and coding. If this is your first experience tinkering with the platform, the UNO is the most robust board you can start playing with. The UNO is the most used and documented board of the whole Arduino family.
- Size Guide
Size Guide
DRESSEST-SHIRTBOTTOMSDRESSESSize Chest Waist Hips XS 34 28 34 S 36 30 36 M 38 32 38 L 40 34 40 XL 42 36 42 2XL 44 38 44 All measurements are in INCHES
and may vary a half inch in either direction.
T-SHIRTSize Chest Waist Hips 2XS 32 26 32 XS 34 28 34 S 36 30 36 M 38 32 38 L 40 34 40 XL 42 36 42 All measurements are in INCHES
and may vary a half inch in either direction.
BOTTOMSSize Chest Waist Hips XS 34 28 34 S 36 30 36 M 38 32 38 L 40 34 40 XL 42 36 42 2XL 44 38 44 All measurements are in INCHES
and may vary a half inch in either direction.
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- Ask a Question
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Arduino UNO is a microcontroller board based on the ATmega328P. It has 14 digital input/output pins (of which 6 can be used as PWM outputs), 6 analog inputs, a 16 MHz ceramic resonator, 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. You can tinker with your UNO without worrying too much about doing something wrong, worst case scenario you can replace the chip for a few dollars and start over again.
The ATmega328P can easily be replaced, as it is not soldered to the board.
The ATmega328P also features 1kb of EEPROM, a memory which is not erased when powered off.
| Board | ||
|---|---|---|
| Name | Arduino UNO R3 | |
| SKU | A000066 | |
| Microcontroller | ||
| ATmega328P | ||
| USB connector | ||
| USB-B | ||
| Pins | ||
| Built-in LED Pin | 13 | |
| Digital I/O Pins | 14 | |
| Analog input pins | 6 | |
| PWM pins | 6 | |
| Communication | ||
| UART | Yes | |
| I2C | Yes | |
| SPI | Yes | |
| Power | ||
| I/O Voltage | 5V | |
| Input voltage (nominal) | 7-12V | |
| DC Current per I/O Pin | 20 mA | |
| Power Supply Connector | Barrel Plug | |
| Clock speed | ||
| Main Processor | ATmega328P 16 MHz | |
| USB-Serial Processor | ATmega16U2 16 MHz | |
| Memory | ||
| ATmega328P | 2KB SRAM, 32KB FLASH, 1KB EEPROM | |
| Dimensions | ||
| Weight | 25 g | |
| Width | 53.4 mm | |
| Length | 68.6 mm | |
| Brand | Arduino |
|---|
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