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The UNO PLUS is a development board compatible with the popular Arduino UNO R3; it represents an improved & enhanced alternative solution for the Arduino UNO R3.

UNO PLUS vs. UNO R3:

Arduino UNO PLUS:

1. ATMEGA328P-AU
2. AMS1117-3.3 : 3.3V voltage regulator
3. NCP1117ST50T3G : 5V voltage regulator
4. FT232RL : USB to UART convertor
5. Arduino interface
   
   • compatible with standard Arduino interface with two additional analog inputs A6 (config the CFG), A7
   • solder pads provided, supports prototype breadboard
6. ICSP interface
7. MICRO USB connector : for uploading program OR serial port debugging
8. Power output header : 3.3V OR 5V, voltage level configured by the onboard power configuration switch, used as power output OR common-grounding with other boards
9. FT232 pins : for burning Bootloader into the microcontroller
10. DC input : 7V ~ 12V
11. Reset button
12. Power indicator
13. Serial port Rx/Tx indicator
14. User LED
15. Power Regulator
16. Power configuration switch : for configuring the operating voltage
17. Bootloader selection switch
    
• turn ON : the board will reset when power-up OR other USB devices were detected connecting to the PC
• turn OFF : the onboard program runs immediately when power-up, and the board will not reset when other USB devices were detected connecting to the PC

UNO PLUS Expansion Headers

UNO PLUS Dimensions

Development resources: demo codes, schematic, datasheets, etc.

• www.waveshare.com/wiki/UNO_PLUS