Diff: README.txt

Revision:

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+/*******************************************************
+              DC MODOR CONTROLLER LIBRARY
+********************************************************/
+
+            ON/OFF and PID CONTROL SUPPORTED
+
+1. Enable/Disable DEBUG_MODE in DC_Motor_Controller.cpp
+   Debug mode will affect the performance!
+   If compliation issue occurs, DELETE this file. 
+   
+2. Declare a motor by classes to use on/off control or PID control.
+    DC_Motor_On_Off motor(D6,D3,D4,D5,792);         // non-PID
+    DC_Motor_PID motor(D6,D3,D4,D5,792);            // PID
+   Parameters: PinName out_M1, PinName out_M2, PinName in_A, PinName in_B, int PPR
+   Do NOT use DC_Motor_Controller class! It's only a base class.
+
+3. If using the PID controller, set PID parameters.
+    motor.set_pid(0.008, 0, 0);
+    
+4. Motor control methods supported:
+   (speed from 0.0 to 1.0, which will not work in PID controller)  
+    void goto_angle(int angle, float speed = 1);    // go to absolute angle
+    void move_angle(int angle, float speed = 1);    // move for relative angle
+    void reset();                                   // reset the motor
+    void set_out(float a, float b);                 // manually set the speed of output
+    int get_pulse();                                // get the current pulse
+    
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