Lesson 7--Microduino Drive servo (no library)

Language	English

=Objective This lesson will teach you to derive servo by Microduino without library. Equipment Microduino-Core Microduino-FT232R Other equipments: Breadboard Jumper one box Breadboard one piece USB Data cable one Servo one Schematic Program int sp1=7;//Define the servo port pin int pulsewidth;//Define the pulse width int val; int val1; int myangle1; //servopulse function void servopulse(int sp1,int val1)//Define a pulse function { myangle1=map(val1,0,180,500,2480); digitalWrite(sp1,HIGH);//Set the servo port to high delayMicroseconds(myangle1);//Delay time digitalWrite(sp1,LOW);//Set the servo port to low delay(20-val1/1000); } void setup() { pinMode(sp1,OUTPUT);//Set the servo port as output //Set the baud rate Serial.begin(9600); delay(500); Serial.println("servu=o_seral_simple ready" ) ; } void loop()//Map the number 0 to 9 as the Angle of 0 to 180, and let LED flashing the corresponding number { val=Serial.read();//Read the serial port value if(val>'0'&&val<='9') { val1=val-'0';//Get the pure number val1=map(val1,0,9,0,180);//Convert angle to pulse width value of 500-2480 Serial.print("moving servo to "); Serial.print(val1,DEC); Serial.println(); for(int i=0;i<=50;i++)//Given enough time to make servo to rotate specified angle { servopulse(sp1,val1);//Invoke the pulse function } } } Debug Setp 1：Setup circuit, as following: Setp 2: Copy the code to IDE and then compile, run it. Setp 3：Open the serial monitor, input 1 ~ 9. Result Enter a number, the servo will rotate corresponding angle. Video http://v.youku.com/v_show/id_XNjc1NjUwOTUy.html