蜂鸣器~4

按键~8

点阵屏幕~IIC

触摸传感器~6

按键按下后，点阵屏幕显示四屏，分别是：L♥VE，蜂鸣器响起生日快乐歌，LED灯阵代表蛋糕上的蜡烛，六个小灯都亮起，当触碰触摸传感器后小灯灭掉（触碰触摸传感器相当于吹蜡烛）。效果图如下图所示（图1~4为点阵屏幕L♥VE，图5为蜡烛亮时，图6为蜡烛吹灭后，图7为完整图，图8~10为程序截图）。

                                                                                                                   图1

                                                                                                                         图2

                                                                                                                        图3

                                                                                                                           图4

                                                                                                                                图5

                                                                                                                             图6

                                                                                                                                      图7 

                                                                                                                  图8

                                                                                                    图9

                                                                                                                图10