UNO R3 Development Board (CH340 Improved Version)
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This UNO R3 Improved Version features the CH340 USB chip for enhanced Windows compatibility and a standard Micro USB port for convenient power and programming. Powered by the ATmega328P-AU microcontroller, it maintains full functional compatibility with the original UNO R3 architecture while offering additional pin header flexibility for complex prototyping. Ideal for makers and students, this cost-effective board is plug-and-play ready with the Arduino IDE.
add_circle The Upside
- check Resolves driver issues on older Windows systems
- check Uses widely available Micro USB cables
- check Cost-effective alternative to original UNO R3
remove_circle The Downside
- close Requires manual CH340 driver installation
- close Not an official Arduino product
- close May have lower build quality than original
Specifications & features
Key features
- check_circle CH340 USB chip for improved driver compatibility on Windows 7/8
- check_circle Micro USB interface for common smartphone cables
- check_circle ATmega328P-AU microcontroller (QFP package)
- check_circle Additional pin header expansion points
- check_circle Fully compatible with Arduino IDE and shields
Specifications
Analog Input Pins
6
Clock Speed
16 MHz
Digital I/O Pins
14 (6 PWM)
Flash Memory
32 KB
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