Robot Quick Course - 4 in 1 Motors8

The Quorum Studio Coding window for this lesson appear here with the lines of code and comments. Look for links named Full Code as Text with Comments to get the same information in text.

See the images full size in order

+Image of the EV3 LCD Screen. The worlds appear as 4in1 Robot, UP- Spin, RIGHT-Circle, DOWN- Big Circle, LEFT- Spiral, ESCAPE to endE

4 in 1 Motors 8 . Now you are going to use all the skills you gained in the first 7 lessons to make a larger program. If you wish you can copy and past for your motor codes you did before. Please review the code as sometime you will need to insert and extra line of code at the end of some of the elseif statements to stop a motor from continuing to run. Look at the full code as text to locate these lines.

Click here to see the code without comments to copy &paste. ==>

//skip this line use Libraries.Robots.Lego.Motor //4in1ROBOT Motorsuse Libraries.Robots.Lego.Utility use Libraries.Robots.Lego.Buttonuse Libraries.Robots.Lego.Screen Motor motorUtility utilityButton buttonScreen screenscreen:OutputCenter("4in1 Robot",1)//display text on screenscreen:Output("UP-Spin",2)screen:Output("RIGHT-Circle",3)screen:Output("DOWN-Big Circle",4)screen:Output("LEFT-Spiral",5)screen:OutputCenter("ESCAPE to end",6)repeat until button:IsButtonPressed(button:ESCAPE_BUTTON) if button:IsButtonPressed(button:UP_BUTTON)//spin robot motor:SetSpeed("B",25) motor:SetSpeed("C",25) motor:RotateByDegrees("B", 360*2) motor:RotateByDegrees("C", -360*2) motor:Wait("B") motor:Wait("C") motor:RotateByDegrees("B", -360*2) // spins clockwise. motor:RotateByDegrees("C", 360*2) motor:Wait("B") motor:Wait("C") elseif button:IsButtonPressed(button:RIGHT_BUTTON) motor:SetSpeed("B",50) //Circle Robot motor:RotateByDegrees("B",1800) motor:Wait("B") motor:RotateByDegrees("B",-1800) motor:Wait("B") elseif button:IsButtonPressed(button:DOWN_BUTTON)//BigCircle motor:SetSpeed("B",50) motor:SetSpeed("C",25) motor:RotateByDegrees("B", 360*7) motor:RotateForward("C") motor:Wait("B") motor:RotateBackward("C") motor:RotateByDegrees("B", -360*7) motor:Wait("B") motor:Stop("C") // New Line to stop motor elseif button:IsButtonPressed(button:LEFT_BUTTON)//spiral integer speedB=1 integer speedC=-5 motor:SetSpeed("B",speedB) motor:SetSpeed("C",speedC) repeat 75 times motor:RotateForward("B") motor:RotateForward("C") utility:DelayMilliseconds(200) speedB = speedB+2 speedC = speedC+1 motor:SetSpeed("C",speedC) motor:SetSpeed("B",speedB) end //end of the repeat motor:Stop("C") motor:Stop("B") end//end of last elseifend//end of the repeat until

Sample Video appears to the right.Scroll down to see student summited videos

Full Code as Text with Comments

Student Videos

GITHUB BUTTON HERE