AS accelerometer sensor

The accelerometer measures any force that causes acceleration in the x-, y-, or z-direction. Because the Finch is usually moving pretty slowly, the accelerometer mostly measures the acceleration due to gravity. When the Finch is sitting on a level surface, the acceleration due to gravity points through the base of the Finch, along the positive z-axis. If you instead position the Finch so that its beak is pointing at the ground, the acceleration due to gravity points along the positive x -axis. The accelerometer enables you to measure these differences.

AS Accelerometer Sensor Snap Shot 

Block Code                                                   Copy and Paste Code

AS1 Medium

 

 use Libraries.Robots.BirdBrain.Finch
Finch finch
output "Press the A button each time you to want a reading"
output "Press the B button to end program"
repeat until finch:GetButton("B")
repeat until finch:GetButton("A")
end
finch:SetBeak(0,100,0)
output "X Acceleration: " + finch:GetAcceleration("x")
output "Y Acceleration: " + finch:GetAcceleration("y")
output "Z Acceleration: " + finch:GetAcceleration("z")
finch:Pause(0.2)
finch:StopAll()
repeat until finch:GetButton("A")
//pause
end
end
finch:Disconnect()

Howhis code works. Run the code. The robot is waiting for you to press the A or B button. The A button with display the XYZ accelertation at the moument you press it in  in the computer console. This lets you repoistion the Finch. Try diferent poses like beak straight up or down, Try ttiping the  Finch left or right till the wing is touching the ground. You might want to make a chart of the readings in those possitions.  You out put can be posative or negative. The posative number show that accelration is increasing and negative number show the  deacceleration or slowing down. 

AS2

 AS2Forward
Copy and Paste
use Libraries.Robots.BirdBrain.Finch
Finch finch
number speed =0
finch:SetBeak(0,100,0)
repeat 25 times
speed=speed+4
finch:SetMotors(speed,speed)
output speed+" X = " + finch:GetAcceleration("x") + " [] Y= " + finch:GetAcceleration("y") + " [] Z= "+finch:GetAcceleration("z")
end
finch:StopAll()
finch:SetTail(1,100,0,0)
speed=0
repeat 25 times
speed=speed-4
finch:SetMotors(speed,speed)
output speed+"X = " + finch:GetAcceleration("x") + " [] Y= " + finch:GetAcceleration("y") + " [] Z= "+finch:GetAcceleration("z")
end
finch:StopAll()
finch:Disconnect()

Notes

The Finch will move faster and faster, Stop, then move backwards faster and faster. The data will be collected on the console. Rember that the acceleration due to gravity would be masured on the Z axis as a negative number.  

 

 

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