Models Limit switch SPDT sim roller 7 398 0 WS2812 round 3 bits 5 96 0 16mm metal push button 36 1657 1 5.5mm panel mount DC jack 33 1048 0 ATMega32U4 BS PMicro Arduino board 3 29 0 JST SM 2.54 3-Pin Male Connector 19 837 2