Seeed grove user interface and control modules seeed studio 101020028 the grove thumb joystick from seeed studio has two analogue outputs one each for x and y the stick also has a push button when it is pressed the analogue lines are set to maximum otherwise they operate between 20 and 70 of the normal rangeseeed provide technical documentation example projects and software libraries on their product pages if you require this information please visit this products page seeed 10102