Arduino intermediate kit is an Arduino advanced kit, let you learn arduino and sensors.
Gravity: Starter Kit for Arduino by DFRobot
DFRobot Gravity: Intermediate Kit for Arduino : : Industrial & Scientific
Low-cost water quality sensors. As I have already explained in my first…, by Marco Zecchini
Buy DFRobot Gravity - Thumb Joystick with a Botland - Robotic Shop
Arduino Zero to Hero Kit - DFRobot
Gravity: Intermediate(advanced) Kit for Arduino - DFRobot
Gravity: IO Expansion Shield for Arduino V7.1 - DFRobot
Gravity: Starter Kit for Arduino - DFRobot
Compatible with Arduino UNO, Mega, DUE. Switch for wireless communication and programming. 3.3V voltage output interface. Xbee, Bluetooth, SD card read/write supportable shield. The Gravity I/O Expansion Shield for Arduino v7 is compatible with the new Arduino Due with 3.3V voltage output interface.
Gravity: IO Expansion Shield for Arduino V7.1 DFR0265
Gravity: Intermediate(advanced) Kit for Arduino - DFRobot