Grove Starter Kit for Photon is an easy to use plug-and-play kit for the Photon - one base shield lets you connect a variety of included Grove modules.It includes a Grove Shield for Photon and several Groves、Grove Shield for Photon is an expansion board、which is more easy for users to build Groves 4-pin standard interfaces from Spark Photon、also avoid the user spent too many cables to build prototype.