Grove is a modular electronic platform for quick prototyping. Every module has one function, such as touch sensing, creating audio effect and so on. Just plug the modules you need to the base shield, then you are ready to test your idea buds.

This Grove - Starter Kit for Arduino is a perfect starter kit for Arduino begginers. It includes a Base Shield which have many Grove connectors on board, twelve Grove modules that covers most functions needed by a begginner and a very helpful user manual that can help get started quickly.

Buy if from here: https://www.seeedstudio.com/Grove-Starter-Kit-for-Arduino-p-1855.html

Arduino Uno is the most popular Arduino board so far, however it is sometimes frustrating when your project requires a lot of sensors or Leds and your jumper wires are in a mess. The purpose of creating the Grove – Base Shield is to help you getting rid of bread board and jump wires. With the rich grove connectors on the base board, you can add all the grove modules to the Arduino Uno very conveniently!

Buy it from Seeed Studio: https://www.seeedstudio.com/Grove-Starter-Kit-for-Arduino-p-1855.html

In the box you will find:
-Base Shield
-Grove - LCD RGB Backlight 
-Grove - Smart Relay 
-Grove - Buzzer 
-Grove - Sound Sensor 
-Grove - Touch Sensor 
-Grove - Rotary Angle Sensor 
-Grove - Temperature Sensor 
-Grove - LED 
-Grove - Light Sensor
-Grove - Button 
-DIP LED Blue-Blue
-DIP LED Green-Green 
-DIP LED Red-Red
-Mini Servo 
-Grove Cables 
-9V to Barrel Jack Adapter 
-Grove starter kit Manual 

You can also order the BME280 Barometer sensor from here: https://www.seeedstudio.com/Grove-Temp-Humi-Barometer-Sensor-BME280.html

Tutorial list:
​LED http://www.ardumotive.com/led-socket-kit-en.html
BUZZER http://www.ardumotive.com/buzzer-en.html
BUTTON http://www.ardumotive.com/button-with-buzzer-en.html
ROTARY http://www.ardumotive.com/rotary-angle-sensor-en.html
LCD http://www.ardumotive.com/lcd-rgb-backlight-with-temp-sensoren.html
TOUCH http://www.ardumotive.com/touch-sensor-with-leden.html
MIC http://www.ardumotive.com/sound-sensor-en.html
BAROMETER http://www.ardumotive.com/barometer-sensor-bme-280en.html
LIGHT http://www.ardumotive.com/light-sensor-en.html