I2C Hub Grove is an extension Grove module for connecting multiply I2C devices to Grove Base Shield. It can use with Universal 4 Pin to X2 4 Pin cable and connects up to 7 I2C divices which may cover most developing purpose.

This IR Distance Interrupter features a high-sensitivity RFR-359F photoreflector to perform distance detection function. The photoreflector consists of a GaAs infared light emitting diode and a silicon planar phototransistor. When the infrared light emitted by the emitter gets reflected on a surface that blocked it, the phototransistor can pick up the signal for distance calculation. This module is panel mounted so that you can easily implement it on the surface of robots or other projects without wiring clutter. Also a potentiometer for adjustment and an indicator LED are arranged on the back for easy and clear use.

Done with tedious mono color backlight? This Grove enables you to set the color to whatever you like via the simple and concise Grove interface. It takes I2C as communication method with your microcontroller. So number of pins required for data exchange and backlight control shrinks from ~10 to 2, relieving IOs for other challenging tasks. Besides, Grove - LCD RGB Backlight supports user-defined characters. Want to get a love heart or some other foreign characters? Just take advantage of this feature and design it!

Grove - Mini Fan is a DC motor driver base on AVR microcontroller Atmega168,you can change code by breakout , this module also reserve servo connector,it can driver servo by change code ,Grove - Mini Fan is design for kids, which is use soft fan-leafed in order to avoid unnecessary damage.

Grove - OLED 0.96'' is a 16 color grayscale 96×96 dot matrix OLED display module with Grove compatible 4pin I2C interface.Grove - OLED 0.96" is constructed with 96 x 96 dot matrix OLED module ([ LY120])and SSD1327 driver IC. The characteristics of this display module are high brightness, self-emission, high contrast ratio, slim / thin outline, wide viewing angle, wide temperature range, and low power consumption.

Grove - OLED Display 1.12" is an OLED monochrome 128×64dot matrix display module with Grove 4pin I2C Interface .The characteristics of this display module are high brightness, self-emission, high contrast ratio, slim outline, wide viewing angle, wide temperature range, and low power consumption. It has bigger screen and uses all the columns from the SSD1308 chip so that it can display more contents than the OLED 96×16.

Key Features:

• Grove compatible
• Small size
• I2C Interface
• Low power consumption

This is a simple to use PIR motion sensor with Grove compatible interface. Simply connect it to Stem shield and program it, when anyone moves in its detecting range, the sensor outputs HIGH on its SIG pin. The detecting range and response speed can be adjusted by 2 potentiometers soldered on its circuit board, The response speed is from 0.3s - 25s, and max 6 meters of detecting range.

This protoshield allows you to add your own circuitry or components to your Grove system prototypes. This allows you access to all four lines from the connector cable ? S0, S1, VCC and GND. There is also an extra normally-open button to take advantage of. The hole spacing makes using normal DIP-format ICs and other components very simple. You may wish to purchase more for future use in advance.

Grove - LED is designed for the beginners of Arduino/Seeeduino to monitor controls from digital ports. It can be mounted to the surface of your box or desk easily and used as pilot lamp for power or signal. Its brightness can be adjusted by potentiometer.

Features:

• Grove compatible interface
• 3.3V/5V Compatible
• Adjustable LED orientation
• Adjustable LED brightness

The RTC module is a member of Twig. It is based on the clock chip DS1307 which supports the I2C protocol. It uses a Lithium cell battery (CR1225). The clock/calendar provides seconds, minutes, hours, day, date,month, and year information. The end of the month date is automatically adjusted for months with fewer than 31 days, including corrections for leap year. The clock operates in either the 24-hour or 12-hour format with AM/PM indicator.

Grove - Servo is a bonus product for Grove lovers. We regulated the three-wire servo into a Grove standard connecter. You can plug and play it as a typical Grove module now, without jumper wires clutter. For all Grove users (especially beginners), we provide you guidance PDF documents. Please download and read through Preface - Getting Started and Introduction to Grove before your using of the product.

What does “P” mean? “P” is for “panel mount” in this product. This Grove – Switch is a mini SPDT slide, great for “ON/OFF” situations. It’s such a reliable switch of great build quality that we adopt it on many of our boards. You should stock some for your Grove prototyping system.

This temperature & humidity sensor provides a pre-calibrated digital output. A unique capacitive sensor element measures relative humidity and the temperature is measured by a negative temperature coefficient (NTC) thermistor. It has excellent reliability and long term stability. Please note that this sensor will not work for temperatures below 0 degree.

Features:

• Relative Humidity and temperature measurement
• Full range temperature compensation Calibrated
• Digital signal Long term stability
• Long transmission distance
• Low power consumption

This is a multifunctional sensor that gives you temperature and relative humidity information at the same time. It utilizes a TH02 sensor that can meet measurement needs of general purposes. It provides reliable readings when environment humidity condition inbetween 0-80% RH, and temperature condition inbetween 0-70°C, covering needs in most home and daily applications that don't contain extreme conditions.

This water sensor module is part of the Twig system. This sensor works by having a series of exposed traces connected to ground and interlaced between the grounded traces are the sens traces. The sensor traces have a weak pull-up resistor of 1 MΩ. The resistor will pull the sensor trace value high until a drop of water shorts the sensor trace to the grounded trace. Believe it or not this circuit will work with the digital I/O pins of your Arduino or you can use it with the analog pins to detect the amount of water induced contact between the grounded and sensor traces.

Features

• Grove compatible interface
• Low power consumption
• 2.0cm x 2.0cm twig module
• High sensitivity

Applications Ideas

• Rainfall detecting
• Liquid leakage
• Tank overflow detector

A true open hardware ,BeagleBone Series is credit-card-sized Linux computer that connects to the Internet and runs software such as Android 4.0 and Ubuntu. With plenty of I/O and processing power for real-time analysis provided by an AM335x 720MHz ARM® processor, BeagleBone can be complemented with cape plug-in boards to augment functionality. And this Grove - Grove Cape for BeagleBone Series is an expansion board for BeagleBone Series to work with abundant Grove resources. There are 6 ready Grove sockets on the board cevering functions like UART, I2C and ADC. And in this way, all Grove Modules are accessible for the BeagleBone board. Wanna make some projects with BeagleBone and need some sensors or display? This Grove - Grove Cape for BeagleBone Series can bring you this convenience.