Easy way to give voice to your robots and projects
• Supports Chinese and English languages
• Baud rate: 4800,9600,57600,115200
• Interfaces: UART, IIC and SPI

External Power Range: 3.3V - 5.5V
• Interface: I2C and Interrupt Output
• Selectable 12/24 Hours Format
• 0.5s IIC Bus auto reset function to avoid from getting stuck

• MQ2 smoke detector shield for Arduino/pcDuino
• Detects the concentrations of combustible gas in air
• Measures concentrations of 300 to 10,000 ppm
• Consumes less than 150mA at 5V

• Arduino compatible WiFi shield V3 supporting AP+STA dual mode
• Provides UART(TTL) to IEEE802.11b/g/n wireless communication
• Transmission rate: 54Mbps - 1Mbps
• Frequency range: 2.4 - 2.497GHz

• Easily control 2 stepper motors with only 4 digital I/Os
• Five different microstep resolutions (down to 1/16-step)
• 10 channel digital I/O & 6 channel Analog I/O addition
• Input voltage: 8-35V DC

• A small, but mighty power supply
• Designed to be as small and inconspicuous as possible
• Board has AAA battery clips but can use an input from 1.2V to 5V
• RoHS Compliant

• EFCom arduino compatible module
• Fully compatible with AVR/Arduino/ARM/FPGA
• Super capacitor power supply for the RTC
• Supply voltage range of 3.1 to 4.8V

• SD card shield to add storage in Arduino project
• SD card, Micro SD card and SDHC card supportable
• On-board toggle switch to select the SD card type
• I2C header and UART header on board

• High performance and fully static 32-bit x86 processor board
• Sensor: LSM330DLC (6-axis accelerometer & gyro)
• Communication: I2C, SPI, UART, RS485, CAN, LAN
• Digital I/O pins: 45 (11 provide 32bit PWM output)
• Memory: 128MB DDR3

• Arduino UNO Rev3 / Mega Shield compatible footprint
• Can work with both 3.3V and 5V
• Can dispaly on Chipkit UNO32 and Simplecortex as well
• Backlight : LED

• Supply: 4.5V - 35V
• Output: 1.25 - 12V
• Output current: 2A (3A peak)
• Efficiency: 90%
• Arduino compatible

• Arduino compatible prototyping board
• Gold plated PCB for easy soldering
• Mounting pads for buttons, LEDs and capacitors
• Clearly marked GND and 5V rails beside prototyping area

• Dual full H-Bridge driver with PWM control
• 2Amps per motor, 24VDC maximum motor voltage
• Large high quality decoupling capacitors
• Arduino Nano is not included

• Supports both Seeeduino MEGA and Arduino MEGA
• All pins are brought to the top level
• Supports Xbee/GPS bee
• Large prototyping area

• Host Interface: UART
• Working Voltage: 3.3v or 5v
• Serve for contactless communication at 13.56MHz
• Supports ISO 14443B in reader/writer mode only

• Working voltage:3.3V
• Speically designed for controlling servos
• Arduino Compatible
• Features a 12 standard servo control capbility with an Xbee socket

Working Voltage: 5V
• Compatible with TF SD card, which is the most tiny card in the market
• Includes various applications such as data logging, audio, video, graphics
• Greatly expands the Arduino memory
• Interface: SPI

• Advance MP3 decoder IC, VS1053B
• On-board audio amplifier, volume control, speaker
• Breadboard friendly, small size 3.7'' x 1.1''
• Four mounting holes for standalone application
• Arduino Nano USB Microcontroller v3 is not included

Directly plug on the Arduino board
• Can use the Arduino to drive the matrix like the Colorduino/Rainbowduino
• Hardware 16MHz PWM support
• 8 super source driver channels of 500mA each

• 4X4 key-pad shield with a 5110 Graphic LCD interface
• Can plug it on Arduino boards directly
• Can get the small development platform with keypad input and Graphic LCD display
• Version: 1.1