Description
Arduino UNO R3 SMD Board Compatible with Arduino
One of the new ways into the world of electronic innovation is the SMD Arduino UNO R3 Development Board with Cable.
This board is totally different from the Arduino Uno R3. Uno R3 and Uno R3 SMD both boards are based on the ATmega328P Microcontroller but the difference is that the UNO R3 is through-hole version, and this is an SMD version or Surface Mount Device version.
A SMD or surface-mount device is an electronic component that is mounted directly onto the surface of a printed circuit board (PCB), rather than being inserted through holes.
The board has dimensions of 7 x 5 x 1cm and comes to the fore as a compact and reliable choice for both beginners and experienced electronics enthusiasts.
It is designed with 14 digital input/output pins, 6 analog inputs, a 16MHz crystal oscillator, a USB connection, and the CH340G USB to UART Converter Chip, this development board is a perfect match for the electronic prototypes that you want to build with Arduino.
This Arduino programming board is a must-have if you’re into robotics, IoT, home automation, and security system projects.
If your projects are large or small, this Arduino UNO R3 ATmega328P SMD microcontroller brings to you a whole lot of potential and creativity.
Buy Genuine Arduino Uno R3 – Best Price!
Pin Diagram
Comparison of Uno Boards:
| Specification | UNO Wifi | UNO SMD | UNO R3 |
| Microcontroller | ATmega4809 | ATmega328P (SMD) | ATmega328P (Through hole) |
| USB connector | Micro-USB | USB-B | USB-B |
| Digital I/O Pins | 14 | 14 | 14 |
| Analog input pins | 6 | 6 | 6 |
| PWM pins | 5 | 6 | 6 |
| UART | Yes | Yes | Yes |
| I2C | Yes | Yes | Yes |
| SPI | Yes | Yes | Yes |
| I/O Voltage | 5V | 5V | 5V |
| Input voltage (nominal) | 7-12V | 7-12V | 7-12V |
| DC Current per I/O Pin | 20mA | 20 mA | 20 mA |
| Power Supply Connector | Barrel Plug | Barrel Plug | Barrel Plug |
| clock speed | 16 MHz | 16 MHz | 16 MHz |
| USB-Serial chip | ATmega16U2 | CH340 | ATmega16U2 |
| SRAM | 6.144KB | 2KB | 2KB |
| Flash Memory | 48KB | 32KB | 32KB |
| EEPROM | 256 Bytes | 1KB | 1KB |
| Dimensions | 68.6 mm x 53.4 mm | 68.6 mm x 53.4 mm | 68.6 mm x 53.4 mm |
| RADIO MODULE | u-blox NINA-W102 | – | – |
| Inertial Measurement Unit | LSM6DS3TR (3D accelerometer) | – | – |
| LED_BUILTIN | 25 | 13 | 13 |
| Wi-Fi Microprocessor | Yes | – | – |
Applications:
- Arduino Music Instrument
- Robot Car
- Fingerprint door lock
- Home Automation
- Security systems
Package Includes:
- 1 x UNO SMD Board compatible with Arduino
Specifications:
| Microcontroller | ATmega328 |
| Digital I/O Pins | 14 |
| Analog Inputs | 6 |
| Crystal Oscillator Frequency | 16MHz |
| Operating Voltage | 6-20V |
| Dimensions | 7 x 5 x 1cms |
| Weight | 10 grams |
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