arduino electronic building blocks button module (button cap color random)<br />Module size: 2.9 * 2.1cm<br />DuPont line length: 20cm<br /><br />arduino specific module， port connection and is compatible with arduino sensor expansion board<br /><br />Output low when pressed， releases remain high<br /><br />Key Module * 1<br />3PIN Dupont line * 1<br />Static bag<br /><img src="http://img6.eachbuyer.com/x9/p100/eb4337_1.jpg" />                                                        <img src="http://img6.eachbuyer.com/x9/p100/eb4337_2.jpg" />                                                        <img src="http://img6.eachbuyer.com/x9/p100/eb4337_3.jpg" />                                                        <img src="http://img6.eachbuyer.com/x9/p100/eb4337_4.jpg" />