The R3 Plus is Waveshare's very own Arduino-compatible ATmega328P-based development board. Arduino-compatibles are a great way to find something a little different for your project - ideal when you need a specific feature or function.
Waveshare designed the R3 Plus with a huge number of subtle but useful changes to the default R3 design including dual voltage levels, low-profile power connectors, lateral switches and more - see the full feature list below!
A Micro-USB cable is included with the board.
Dual voltage levels - Supports 5V and 3.3V
Lateral reset button - Easier to access when using shields
Bootloader switch - The board can be configured to run a program immediately when power-up by the switch
Micro-USB Connector - A more common USB interface and keeps the board low profile for shields
Low-profile DC jack - Contributes to the low profile of the board, avoids shield blocking
Power output header - A dedicated 3.3/5V and GND header for your projects and common grounding
3.3V Power Output - A boost to the norm, with 800mA driving capability
Crystal Oscillator - For accurate clock references
8 ADC channels - more ADC pins for your project. CFG used as ADC6 by configuration and ADC7 from the reserved pin.
Solder Pads - Pads are provided for DIY project wiring where required
FT232 USB Driver - more compatible with mainstream Operating Systems
Firmware Fixing - Firmware can be fixed by using the onboard FT232, no extra programmer is required
Dimensions: 66.04mm x 53.34mm
3.3V voltage regulator
5V voltage regulator
USB to UART convertor
5) Arduino interface
Compatible with standard Arduino interface with two additional analog inputs A6 (config the CFG), A7