need help with this graph

[o0tsubasa0o]

I have given a task by my teacher to use a Crossbow CXL04GP3 Accelerometer to measure the tilt when it is mount on a SUMO Robot .

By using the Hyper terminal to record the readings ( when the SUMO moves and stop ) and the transfer it to microsoft excel to plot a line graph .

the readings is -> Tilt value x:50944 , i will use the list of the readings to plot the graph .
 
Graph :


this is a pitch graph isnt it ? . erm the Y axis is the data and what does the X axis represents ? and how do i see the tilt from this graph ?

Kinda new to this things would anyone help me out thx

[nottoooily]

Should be 2.4V at 0g and 3.4V/1.4V at 1g. So you need to scale the ADC output.

Unless the robot is also converting it to an angle you'll have to do that yourself.

Angle from vertical = cos^-1(acceleration/g)

Assuming it's not actually accelerating.

[waltr]

what does the X axis represents

time

[o0tsubasa0o]

thx for the help to the both of you