Arduino
Arduino UNO R3 SMD
HUK-29965
Arduino UNO R3 with a surface-mount ATmega328P, for builds where the microcontroller stays on the board.
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Arduino
Arduino UNO R3
The classic Arduino board: ATmega328P at 16MHz with 14 digital I/O pins, 6 analogue inputs and USB-B, in a removable DIP package.
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£20.33 ex VAT£24.40 inc VAT
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Product information
Arduino UNO R3 is the board most people learn electronics and coding on, and the reference for thousands of shields, tutorials and projects. It is built around the ATmega328P microcontroller, with 14 digital input/output pins (6 with PWM), 6 analogue inputs, a 16MHz resonator, a USB connection, a power jack, an ICSP header and a reset button.
The microcontroller sits in a socket, so you can replace it if something goes wrong. Connect it to a computer with a USB cable, or power it from a 7–12V adaptor or battery, and program it with the free Arduino IDE.
Key features
- Microcontroller: ATmega328P
- Operating Voltage: 5V
- Input Voltage (recommended): 7-12V
- Input Voltage (limit): 6-20V
| Microcontroller | ATmega328P |
|---|---|
| Operating Voltage | 5V |
| Input Voltage (recommended) | 7-12V |
| Input Voltage (limit) | 6-20V |
| Digital I/O Pins | 14 (of which 6 provide PWM output) |
| PWM Digital 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 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 |
| Manufacturer | Arduino |
| Manufacturer part no. | A000066 |
| Hossam UK code | HUK-54209 |
| Standard UK delivery | £3.95, free on orders over £100. Delivered in 2–3 working days. |
|---|---|
| Next working day | £6.95. Order by 2pm, Monday to Friday. |
| Returns | Return unopened items within 14 days for a full refund. Faulty items are covered by the manufacturer’s warranty. |
| WEEE | We offer free take-back of old electrical equipment when you buy a similar item. |
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