The Uno R3 CH340G ATmega328p Development Board is the low-cost version of the popular Uno R3 Arduino. It is assembled with the CH340 USB to Serial converter chip, instead of using an Atmega16U2 chip.

This programmable Uno R3, has most of the features of the Uno with the added benefit of an ISP header and CH340G interface. This can be programmed over a USB B cable. You can power this Board over USB or through the barrel jack. The on-board power regulator can handle anything from 7 to 15 Vdc.

Technical Specification:

• Microcontroller Chip: ATmega328 (SMD) – Interface CH340G
• Operating Voltage: 5V
• Input Voltage(Recommended): 7-12V
• Input Voltage (limit): 6-20V
• Analog I/O Pins: 6
• Digital I/O Pins: 14 (of which 6 provide PWM output)
• PWM Digital I/O Pins: 6
• DC Current for 3.3V Pin: 50 mA
• DC Current per I/O Pin: 40 mA
• Clock Speed: 16 MHz
• SRAM: 2 KB (ATmega328)
• EEPROM: 1 KB (ATmega328)
• Flash Memory: 32 KB (ATmega328) of which 0.5 KB used by bootloader
• Power Supply Option: DC Jack or USB
• On Board LEDs: On/Off, L (PIN 13), TX, RX
• Operating Temperature: -40°C to +90°C
• Size: 75mm*54mm*12mm (L*W*H)

 Features:

• USB Programming facilitated by the CH340G
• Header pins included
• R3 Shield Compatible
• Support ISP download function
• Additional 3 rows of the holes for wiring

 Applications:

• Automation system
• DIY projects