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ARDUBLOCK Project 10: Servo Motor Control

Posted by Fiona Su on

Introduction:
Servomotor is a commonly used positional-servo actuator.
In this project, we use graphical programming . First , read out analog value controlled by adjustable potentiometer module, ranging from 0 to 1023. Then, map the value to 0-180. Finally, set the mapped value as angle of motor rotation.
Materials Required:
  • 1. KEYESTUDIO UNO Control Board *1
  • 2. V5 Sensor Shield*1
  • 3. Adjustable Potentiometer*1
  • 4. Micro Servo*1
  • 5. Female to Female Dupont Line*3

Connection Diagram:
Note: do not use the USB port for power supply because the current it needs is more than 500ma,it may lead to USB port burnt out. We recommend external power supply.

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After wiring, we can start programming.

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Click “download to Arduino” to see the codes in Arduino interface.
Sample Code:

*****************************************************************************
#include <Servo.h>
int _ABVAR_1_val = 0 ;
int _ABVAR_2_servo = 0 ;
Servo servo_pin_9;

void setup()
{
  servo_pin_9.attach(9);
}

void loop()
{
  _ABVAR_1_val = analogRead(0) ;
  _ABVAR_2_servo = map ( _ABVAR_1_val , 0 , 1023 , 0 , 180 )  ;
  servo_pin_9.write( _ABVAR_2_servo );
}
*******************************************************************************

Result:
Put the program into the development, and we can use potentiometer to control servomotor.
Note:place Servo folder into the compiler of \Arduino\libraries. Otherwise, you can’t compile. Just like this D:\Program Files\Arduino\libraries
Servo folder downloading address:
http://7326097.s21d-7.faiusrd.com/0/ABUIABAAGAAggrHXvAUopNrTggY?f=Servo.zip&v=1469438082

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Buy it >> ARDUBLOCK Graphical Programming Starter Kit for Arduino

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