Usage of external kit and inquiry about rule 3.2.2

hi,my team is using Picar-x sunfounder robot car kit for base of for our robot,this kit includes color sensor and ultrasonic modules,which helps us completing line following also should be noted that all the code is made by us,do we break the rule 3.2.2 by using this kit? also for the rescue task of the map,we use our own design. @Matej