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UNO PLUS Package A, Improved UNO (100% Arduino-Compatible) UNO R3, ATMEGA328P-AU with Various Sensors
This product is developed, manufactured, and tech supported by Waveshare.
UNO PLUS is a development board compatible with the Arduino UNO R3, an improved & enhanced alternative solution for Arduino UNO R3.
UNO PLUS Vs UNO R3：
|UNO PLUS||UNO R3||Remarks|
|Operating voltage||5V/3.3V||5V||Dual voltage level to support more shields|
|Reset||Lateral||Vertical||Lateral button is easier to use when connecting with shield|
|Bootloader switch||Yes||None||The board can be configured to run program immediately when power-up by the switch|
|USB connector||Micro USB||USB Type B||Micro connector is more commonly used, and shields won't be blocked anymore while connecting|
|DC jack||Low profile||Normal height||Shields won't be blocked anymore while connecting|
|Power output header||Yes||None|
Providing 5V/3.3V power output OR common-grounding with other boards
|3.3V power output||800mA Max||150mA Max||UNO PLUS features higher driving capability|
|Oscillator||Crystal oscillator||Ceramic resonator||Crystal oscillator is suit for applications where accurate clock reference is required|
|ADC channel||8||6||CFG used as ADC6 by configuration, and ADC7 from the Reserved PIN|
|Connecting with prototype breadboard||Supported||Not supported||Solder pads is provided for DIY interfaces to connecting with prototype breadboard|
|USB driver||Compatible with all main systems||Doesn't compatible with WIN7/WIN8 Express Edition||Driver will never failed to install thanks to the onboard FT232|
|Firmware fixing||Supported||Not supported||Firmware can be fixed by using the onboard FT232, no extra programmer is needed|
Development resources: demo codes, schematic, datasheets, etc.