Anyone know how if the BeagleBone black has it's own temperature monitor?

3D Printing
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1

Anyone know how if the BeagleBone black has it’s own temperature monitor? I have found some stuff online but it doesn’t work on my current board.

2

What are you attempting to do? The BBB has no sensors but the Replicape allows for 3 thermistors.

3

The beaglebone black has a Texas Instruments SOC (System on a Chip) that runs the whole thing. Usually these chips have hardware that monitors the chip’s temperature. There are ways to query this hardware to get this temperature.

This is totally unrelated to the Replicape itself.

I just wanted to see how hot was the CPU on the BBB getting while printing for 6 hours to see of the fan I have cooling the boards is sufficient or not. And this seemed like an easy and quick way to do it.

4

Not sure. The pi has a built in temperature sensor because my octoprint navtemp shows the pi temp.

5

Found this, but haven’t tried it: http://inspire.logicsupply.com/2014/12/beaglebone-cpu-temperature-monitor.html

6

@Andy_Tomascak Thanks for looking! I had found this same thing and tried it but it doesn’t work because the file that contains the temp is not there:

CPU Temp [Celsius]: cat: /sys/class/hwmon/hwmon0/device/temp1_input: No such file or directory

7

@James_Armstrong Exactly. I have Octoprint with navbar temp plugin on a Raspberry Pi for another printer and it displays the Pi temperature as well. I was expecting the same for the BeagleBone Black after I installed the same plugin but it’s not there.

8

Sounds like TI doesn’t want end users using that sensor anymore. Ref: http://stackoverflow.com/questions/28099822/reading-cpu-temperature-on-beaglebone-black

9

@Andy_Tomascak I appreciate you digging further and clearing up the mystery!