Are you sure you are using it properly? Have you initialized it? Show me your script?

this is what the (?) mark chows

That's great but you need to write a script like below (DJ's code for the mpu6050) in order to use it the way you saw on the video DJ made of JD getting up after falling over... This is for the MPU6050 not for the MPU9150, however the code can be easily adapted to work with the MPU9150

ControlCommand("MPU6050", Init)

sleep(100)

:loop

IF ($AutoPositionStatus = true)

  print("AutoPositioner already running...")  

  sleep(2000)
  
  goto(loop)
  
ENDIF 
  
ControlCommand("MPU6050", RunOnce)

print ("x: " + $MPUAccelX)
print ("y: " + $MPUAccelY)

IF ($MPUAccelY > 8000)

  print("Getting up from front")
  
  ControlCommand("Auto Position", AutoPositionAction, "Getup")
  
  waitfor($AutoPositionStatus = false)
  
ELSEIF ($MPUAccelY < -8000)

  print("Getting up from rear")
  
  ControlCommand("Auto Position", AutoPositionAction, "stand from sit")
  
  waitfor($AutoPositionStatus = false)
  
ENDIF 
  
sleep(1000)

goto(loop)

mpu 6050? in his video and text it chows mpu 9150 but i try yours.

I know... the example is for the mpu6050 ... but tweaking it a little and it will work with the 9150,,, Download the Example Project from the cloud for JD and the MPU650....

withs one do i have then?

Based on what is available for purchase in the store, I would say the MPU9150.

ControlCommand("MPU9150", Init)

sleep(100)

:loop

IF ($AutoPositionStatus = true)

  print("AutoPositioner already running...")  

  sleep(2000)
  
  goto(loop)
  
ENDIF 
  
ControlCommand("MPU9150", RunOnce)

print ("x: " + $MPUAccelX)
print ("y: " + $MPUAccelY)

IF ($MPUAccelY > 8000)

  print("Getting up from front")
  
  ControlCommand("Auto Position", AutoPositionAction, "Getup")
  
  waitfor($AutoPositionStatus = false)
  
ELSEIF ($MPUAccelY < -8000)

  print("Getting up from rear")
  
  ControlCommand("Auto Position", AutoPositionAction, "stand from sit")
  
  waitfor($AutoPositionStatus = false)
  
ENDIF 
  
sleep(1000)

goto(loop)

so i choose the mpu 9150 in ARC?