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Asked — Edited
Resolved Resolved by Jeremie!

4-1 Sensor

Hi everyone, have fitted an Ez-Robot 4-1 Orientation Sensor, went to calibrate and it disconnects from wi-fi?

Never saw any readings from the variable watcher, tried different i2c ports with no success.

I followed the tutorial exactly, first time went well, but now it just wont give me any readings..
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Could anyone possibly help me with this?


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#1  
Hi @NEWAGETOMY

It sounds like your 4-in-1 sensor isn't making a good connection. If the sensor hasn't been used in a while you can un-plug and plug-in the cable a couple times on each side to get rid of any oxidation that may have formed on the contacts.

Are you using this tutorial?

The script in tutorial plus the MPU-9150 Control itself are both essential to get data in the variable watcher. The script will have to continue to be running to get updated data from the sensor.
#2  
@Jeremie,

hey thanks so much for your reply.:)

Yep i followed that tutorial, it was really easy to follow and do, but yeah after the installation something went wrong somewhere and it was just blocking wi-fi the moment i click Calibration. if i click Script or Cali it just disconnects me, will try again very soon. Just need to sort this out before i power on the little guy.:)

Will let you know how i go.;)
#3   — Edited
I should have updated this, the 4-1 works perfectly.:)

Very accurate temp sensor.:)
#4   — Edited
What was the issue?

I don't think EZ Robot sells these sensors anymore.
#5  
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Last time i connected it i never got it working which was strange because it simply plugs into the ezb.

I plugged in a new one and had instant connection after i found it and calibrated it.

But I'm not exactly sure what else can be done with it, i doesn't help the robot in anyway i can't think other than reading the temperature which is does very well.:)

I love the bright led light emanating from it so will find a cool place to put it.
I still have the ultrasonic and touch sensor to connect but they can wait.

I don't think they were even selling them when i bought them, but i found a a few online years ago so thought i would connect one to this guy.

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#6   — Edited
You are right they don't sell them anymore.  I know they had some issues, but I bought a lot of them when a store put all their inventory on close out.  I could open a mini EZ-Robot store at one time, lol.

The bummer is, I have forgotten how to correctly use these 4-1 sensors and the tutorial is no longer up.  Does anyone have a copy of the old instructions or video?
#7  
Lol, hey Justin, yeah it was the compass on those sensors that wasn’t the best. They needed figure 8 calibration and were very sensitive to nearby EMF and magnetism.

To use the sensors with the 4-in-1 skill you would also need a script to activate the sensor. I’m not in front of a computer at the moment but I believe the ControlCommand included RunOnce that needed to be in a loop if you wanted the sensor to stream data
#8  
Back on my laptop now, here's a code sample for you in EZ-script:

Code:

ControlCommand("MPU9150", Init)

:loop

ControlCommand("MPU9150", RunOnce)

sleep(100)

Goto(loop)