Freaduino UNO R3 Improved version

Product specifications
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- Inherited all the features of Arduino UNO.
- Compatible with Arduino UNO / Duemilanove pinout, screw hole and size.
- Selectable 3.3V or 5V working voltage
- Indicator LED visible position - 7 ~ 23V
DC wide range of external input
- UART / IIC and SPI interface separation
- Evolution of SMD components
- Digital I / O pin 14 (six of which provide PWM output)
- Flash 32 KB, of which 0.5 KB is used by the bootloader
- SRAM 2 KB
- EEPROM 1 KB
- Clock speed 16 MHz