The Unit Dual Button is a dual-button unit that provides two different colored physical buttons for operation. It determines the button status by detecting changes in the high/low level of different button input pins.<br> Dual Button as the name states, has two buttons with different color. If the Button unit is not enough for your application needs, how about double it up to a pair? They share the exact same mechanism, button status can be detected by the input pin status by simply capturing the high/low electrical level.<br> This unit communicates with M5Core through GROVE B port.<br> Applications<br> Game Controller<br> Remote control switch<br> Color: White<br> Material: plastic<br> Package Contents:<br> 1 * Dual Button Unit<br> 1 * HY2.0-4P Grove Cable<br> Only the above package content, other products are not included.<br> Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.