1304410487@qq.com：Created page with "{{Language| Joystick Controls DC Motor}} {| style="width: 800px;" |- | ==Objective== To control rotation of DC motor by Joystick. ==Principle== By detecting Joystick analog v..."

2015-09-02T02:59:21Z

Created page with "{{Language| Joystick Controls DC Motor}} {| style="width: 800px;" |- | ==Objective== To control rotation of DC motor by Joystick. ==Principle== By detecting Joystick analog v..."

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{{Language| Joystick Controls DC Motor}}
{| style="width: 800px;"
|-
|
==Objective==
To control rotation of DC motor by Joystick.
==Principle==
By detecting Joystick analog values in X- and Y-axes, you can control the rotation and direction of the DC motor.
==Equipment==
{|class="wikitable"
|-
|Module||Number||Function
|-
|[[Microduino-CoreUSB]]||1||Core board
|-
|[[Microduino-Sensorhub]]||1||Sensor pinboard
|-
| [[Microduino-Joystick]]||1||Joystick sensor
|-
| [[Microduino-Robot]]||1||Robot control board
|-
| [[Microduino-Motor]]||1||DC motor drive board
|-
| [[Motor]]||1||
|}
[[File:_Joystick_motor.jpg|600px|center|thumb]]

==Hardware Buildup==
*Setup 1：Stack CoreUSB, Robot, Motor and Sensorhub.
[[File:CoreUSB_Robot_Sensorhub.jpg|600px|center|thumb]]
*Setup 2：Connect Joystick to Sensorhub to A0-A1 pin of Sensorhub and motor to OUTA-OUT1B pin of Stepper.
[[file:Microduino-sensorhub_Joystick.JPG|thumb|800px|center]]
[[File:Joystick_Motor_sensor.jpg|600px|center|thumb]]

==Software Debugging==
*Define pin of Joystick and motor control.
<source lang="cpp">
#define PI 3.1415926
#define JoystickX_PIN A1 //Joystick X-axis output
#define JoystickY_PIN A0 //Joystick Y-axis output
#define PIN_MOTORA 5 //Motor output
#define PIN_MOTORB 6 // Motor output pin

</source>

*Calculate the angle where Joystick lies, according to which you can control rotation speed and decide rotation direction based on positive or negative value of the angle.
<source lang="cpp">
valueX = (float)(analogRead(JoystickX_PIN)-512);
valueY = (float)(analogRead(JoystickY_PIN)-512);
valueL = sqrt(sq(valueX)+sq(valueY));
angle = asin(valueX/valueL)*180/PI; // Calculate the angle of Joystick by inverse trigonometric function
motorSpeed = (int)(angle*255/180); // Calculate rotation speed according to the angle.
if(motorSpeed > 0) // If the angle is positive, then the motor rotates clockwise.
{
digitalWrite(PIN_MOTORA, LOW);
analogWrite(PIN_MOTORB, motorSpeed);
}
else if(motorSpeed < 0) //If the angle is negative, then the motor rotates anti-clockwise.
{
digitalWrite(PIN_MOTORB, LOW);
analogWrite(PIN_MOTORA, abs(motorSpeed));
}
else //If the angle is zero, then the motor stops rotation.
{
digitalWrite(PIN_MOTORA, LOW);
digitalWrite(PIN_MOTORB, LOW);
}
delay(500);

</source>

==Program==
[[https://github.com/Microduino/Microduino_Tutorials/tree/master/MCookie_Tutorial/MicroduinoJoystickMotor MicroduinoJoystickMotor]]

==Result==
Push Joystick to different angle, you can see the rotation speed and direction will change accordingly.

==Video==

|}

Joystick Controls DC Motor - 版本历史

1304410487@qq.com：Created page with "{{Language| Joystick Controls DC Motor}} {| style="width: 800px;" |- | ==Objective== To control rotation of DC motor by Joystick. ==Principle== By detecting Joystick analog v..."