Arduino Uno R3 SMD CH340 Development Board (USB Cable Included)
- Brand:
- Arduino
- Product Code:
- 2018-000-213
- Availability:
- 19
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Arduino Uno R3 SMD CH340 Development Board (USB Cable Included)
The Arduino Uno R3 SMD CH340 Development Board is an Arduino Uno R3 compatible development board featuring the ATmega328P microcontroller and a CH340 USB-to-Serial converter. A USB cable is included in the package.
Apart from a few minor differences from the original Arduino, there is no difference in usage, software, or compatibility with expansion boards (shields). The microcontroller is SMD-mounted; in the DIP version, the microcontroller can be replaced. Windows 7 and Mac OS X users need to install the CH340 driver; no additional driver is required on Linux and Windows 8 and later versions.
Technical Specifications
| Feature | Value |
|---|---|
| Microcontroller | ATmega328P (SMD) |
| USB-to-Serial converter | CH340 |
| Operating voltage | 5V |
| Input voltage (recommended) | 7-12V |
| Input voltage (limit values) | 6-20V |
| Digital I/O pins | 14 (6 of them provide PWM output) |
| Number of PWM digital I/O pins | 6 |
| Analog input pins | 6 |
| DC current per I/O pin | 20 mA |
| DC current on 3.3V pin | 50 mA |
| Flash memory | 32 KB (ATmega328P); 0.5 KB used by the bootloader |
| SRAM | 2 KB (ATmega328P) |
| EEPROM | 1 KB (ATmega328P) |
| Clock speed | 16 MHz |
| Length | 68.6 mm |
| Width | 53.4 mm |
| Weight | 25 g |

Package Contents
- 1 x Arduino Uno R3 CH340 SMD
- 1 x USB Cable