The current position of the rotary switch is going to be encoded and iussued over the outputs. The module can be soldered solidly or be used with a breadboard.To get more information for this module, please use the link (infurther informationin) under Downloads.SpecificationsModel Rotary EncoderFunction:The current position of the rotary switch is coded via the outputsOperating voltage 5 VDimensions 18 x 31 x 30 mmWeight 6 ghttps://www.joy-it.net/en/products/COM-KY040RE