控制电机岩石正反转 ，带延时 防止电机烧毁(Control motor rock positive reversal, delay to prevent the motor burned.)

双路电机驱动原理图及PCB布线图，两个电机单独控制，可以实现电机的正反转，电机的PWM速度控制。(Dual motor drive schematic diagram and PCB wiring diagram, two motors separately control, can achieve positive and reverse motor, motor speed control of PWM.)

使用逻辑分析仪抓取的一定位对一脉冲或两定位对一脉冲两种EC11旋转编码器的时序图。包括正转，反转，连续正转，连续反转时序。(Timing diagrams of two EC11 rotary encoders captured by logic analyzer for certain bits to one pulse or two to one pulse. It includes forward rotation, reverse rotation, continuous forward