查看“Intelligent Lifting Lever”的源代码

{{Language| Smart Lift Lever }}
{| style="width: 800px;"
|-
|
==Objective==
Simulate switch of a lift lever through Crash key. Just press the key, the lift lever as well as the servo will get rasied and the small car gets through. 

==Principle==
Judge if Crash key is pressed down or not. When pressing down, please make sure the lift lever rotates to a certain angle. The small car goes on Y-axis and gets smaller, meaning the car getting through. Meantime, you can control the rotation of the servo to a certain angle to simulate a true rise of the lift lever. 

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

==Hardware Buildup=
*Setup 1：Stack CoreUSB and Sensorhub. 
[[File:CoreUSB_Sensorhub.jpg|600px|center|thumb]]
*Setup 2：Connect Crash to D2. 
[[File: Landing_Car_Crash.jpg|600px|center|thumb]]
*Setup 3：Connect servo to D8. 
[[File: Landing_Car_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: Landing_Car.zip]]
*Setup 3：Code description: Monitor Crash key value and make servo rotate to a certain angle for one part and you can see the key value change in Scratch for another part. 
**Monitor Crash key value and make servo rotate to a certain angle at the same time. You can see the lift lever open.
 [[File:Joystick_mCookie.gif|600px|center|thumb]]
**The small car moves according to Crash values. 
[[File:Joystick_mCookie.gif|600px|center|thumb]]

==Result==
Press down the key, the lift lever is activated when rotating a certain angle. The small car goes on Y-axis and gets smaller, meaning the car getting through. Meantime, you can control the rotation of the servo to a certain angle to simulate a true rise of the lift lever. 
==Video==

|}