Calibrate Temperature Sensors

Troubleshooting
1

Hi There

My temp sensors are out of whack. Can you please give me a clue as to how to offset them?

I am an arduino noob, but have been working with Linux (Sys Admin) for many years, so just need a push in the right direction.

I would be happy to document it for you as well once I know how to do it.

Cheers
Sam

2

The Arduino already supports the commands to set the serial offset. I have been working on adding buttons in the device manager, but have not finished yet.

There is some documentation here:
http://wiki.brewpi.com/index.php/Temperature_Sensor_Calibration

3

Thanks Elco

Will give it a go

4

Hi Elco

Where do I run those commands? I’m guessing I need an arduino interface of some sort. Can you point me toward a tool or documentation?

I run Linux and Mac.

Thanks
Sam

5

Do I just talk directly to the serial port from a python shell?

6

Just to add that the temperature sensors are calibrated at the factory against a NIST traceable platinum RTD. Unless you have very accurate equipment it’s probably a good idea to leave well alone unless you see there’s a specific problem.

When calibrating the sensors with brewpi you should turn off filtering as much as possible, as this will interfere with the displayed value and the actual value.

7

Thanks Mdma

Unfortunately they are differing heavily, so there is a specific problem.

8

Elco,

Any chance the sensor calibration will make it into the UI?
How/where to run the serial commands?
And how does one “turn off filtering”?

Thanks!

9

@Elco, where can I find the new link. The original one is broken. Is there I way to develop I webUI to to this?

Thanks,

Fabiano da Mata