The new card for Arduino Base Shield v2 has 16 JST 4-pin connectors so you can connect your sensors Grove.
Within each 4-pin connector JST find 5V supply (some require 3.3V) is for this that we have incorporated a switch for switching the voltage use between 5 and 3.3V.
Connectors are also included for connections I2C (SDA and SCL)
Attention: If you want to use this card with Seeeduino Shield V3, you must solder pads P1 and P2.
Visit this wiki page for more information and examples of use of this product.