查看“Joystick Controls Servo”的源代码

{{Language| Joystick Control Servo}}
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==Objective==
Control servo rotation through Joystick and get correspsonding rotation of the arrow icon in Scratch.  
==Principle==
Read Joystick X-axis values and get servo rovolve to certain angel according to return values. 

==Equipment==
*'''[[Microduino-CoreUSB]]'''
*'''[[Microduino-Sensorhub]]'''
*'''[[Microduino-Joystick ]]'''
*Servo
 [[File:Joystick_servo.jpg|600px|center|thumb]]

==Hardware Buildup==
*Setup 1：Stack CoreUSB and Sensorhub 
[[File:CoreUSB_Sensorhub.jpg|600px|center|thumb]]
*Setup 2：Connect Joystick to analog A0 and A1. There is pin description on two sides of Sensorhub,to which you can connect sensors correspondingly. 
[[File:Joystick_mCookie.jpg|600px|center|thumb]]
*Setup 3：Connect servo to D8. 
 [[File:Joystick_mCookie_servo.jpg|600px|center|thumb]]

==Software Debugging==
*Setup 1：Build Scratch programming environment. 
**[[S4A Scratch Getting started]]
*Setup 2：Start programming. Example program download: [[File: Joystick_Servo.zip]]
*Setup 3：Code description—detect Joystick values for one part and the arrow icon will make correpsonding movement according to Joystick. 
**You need to create a variable to save Joystick data. 
***Reflect variable values of 0-1023 to 0-180° and control servo through “Motor” plug-in.
[[File:Joystick_mCookie_servo1.gif|600px|center|thumb]]
**Rotate the arrow according to variables. (Users can change the arrow icon according to individual needs. )
[[File:Joystick_mCookie_servo2.gif|600px|center|thumb]]

==Result==
By moving Joystick on X-axis, you can control servo rotation angle. 
==Video==

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