SainSmart UNO

•  Microcontroller: ATmega328
•  Operating Voltage: 5V
•  Input Voltage (recommended): 7-12V
•  Input Voltage (limits): 6-20V
•  Digital I/O Pins: 14 (of which 6 provide PWM output)
•  Analog Input Pins: 6
•  DC Current per I/O Pin: 40 mA
•  DC Current for 3.3V Pin: 50 mA
•  Flash Memory: 32 KB (ATmega328) of which 0.5 KB used by bootloader
•  SRAM: 2 KB (ATmega328)
•  EEPROM: 1 KB (ATmega328)
•  Clock Speed: 16 MHz

SainSmart Sensor Shield V4

•  Operating Voltage: 5VDC
•  Input Voltage (recommended): 7-12VDC
•  Input Voltage (limits): 6-20VDC
•  Buckled Analog Port: Handy, solid connection to 6 Analog inputs with VCC/GND
•  Digital IO port:13 ports prepared to digital modules or servos
•  Analog IO Port:2.54 grid male pin header connections
•  Buckled Communication Port: Selectable between I2C and UART

SainSmart 20x4 LCD

•  Interface: I2C
•  I2C Address: 0x27
•  Pin Definition : GND¡¢VCC¡¢SDA¡¢SCL
•  Back lit (Blue with White char color)
•  Supply voltage: 5V
•  Pcb Size : 60mm¡Á99mm
• Contrast Adjust : Potentiometer
• Backlight Adjust : Jumper