Basic Info.
Conductive Type
Bipolar Integrated Circuit
Technics
Semiconductor IC
Product Description
ATMEGA328P Microcontroller Development Board, Arduino-Compatible
R3 PLUS MCU Development Board
Based On ATMEGA328P-AU
Compatible with the Arduino official R3 board
What's The Differences
| R3 PLUS | OFFICIAL 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 | R3 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 |
Connecting With Waveshare Shields
Connecting With Motor Control Shield And IO Expansion Shield
Connecting With Sorts Of Sensors
What's On Board
- ATMEGA328P-AU
- AMS1117-3.3
3.3V voltage regulator - NCP1117ST50T3G
5V voltage regulator - FT232RL
USB to UART convertor - Arduino interface
- compatible with standard Arduino interface with two additional analog inputs A6 (config the CFG), A7
- solder pads provided, supports prototype breadboard
- ICSP interface
- MICRO USB connector
for uploading program OR serial port debugging - 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
- FT232 pins
for burning Bootloader into the microcontroller - DC input
7V ~ 12V - Reset button
- Power indicator
- Serial port Rx/Tx indicator
- User LED
- 500mA fast auto-recovery fuse
- Power configuration
for configuring the operating voltage - 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
Optional Development Kit
Development Kit Is Also Available For Your Convenience
Address:
Bagualu No. 43, Shenzhen, Guangdong, China
Business Type:
Manufacturer/Factory
Business Range:
Electrical & Electronics
Management System Certification:
ISO 9001
Company Introduction:
Shenzhen waveshare electronics Co., Ltd is a high-tech enterprise, professional research and development and production of Raspberry Pi expansion board, Jetson Nano expansion board and HD LCD / OLED display products, product line more than 10, with independent core technology, innovation ability and good industry reputation, has a hundred intellectual property rights, has more than ten years of industry precipitation.