00:41 <set_> Hello...I am learning about PX4 autopilot now (along w/ other things). Does librobotcontrol work w/ this software?

00:41 <set_> or the BBBlue in general?

00:42 <set_> I saw a listing in their 1.12-stable docs. about BBBlue. So, I am just assuming it may work.

00:42 <Patel> what is the code to check the python version on my beaglebone black?

00:42 <set_> python or python3

00:42 <zmatt> python3 --version

00:43 <zmatt> (python is still a link to python2, which is obsolete, deprecated, and unmaintained)

00:45 <Patel> I have my programs 2 years old coded in python 2, so will that be a problem while I run them on my BBB which has python 3

00:46 <zmatt> you can obviously continue to use python2, though I'd recommend working on migrating your code to python3, there are both guides and automated tools that can make the process easier

00:49 <Patel> Also a general question, the libraries that I had used earlier are obsolete and when I install the updated libraries can that effect the code/

00:49 <zmatt> (the end of life for python2 was originally scheduled for 2015 and later delayed to january 2020.)

00:50 <zmatt> I mean, that depends on the module I guess? this isn't really a python help channel... none of this has anything to do with the BBB specifically

00:51 <zmatt> many projects have dropped support for python2

00:53 <Patel> My BBB has three led's on all the time, I can login as debian and can run some code using that. But I wanted to check with you is there a problem because earlier I had a couple of LED's going on and off

00:53 <zmatt> ehhhh

00:53 <zmatt> which three leds?

00:54 <Patel> power, WL and BT

00:54 <zmatt> the BBB has no WL/BT leds, you probably mean the BBBW ?

00:55 <Patel> Those all three LED's are in a sequence

00:56 <Patel> R125, R124

00:58 <zmatt> not really, the power led is next to the power plug, the wifi/bt leds are just put somewhere where there happened to be space near the wifi/bt chip

00:58 <zmatt> the power led indicates the system is powered, the wifi and bt leds indicate those functions are enabled (powered on, not necessarily in use)

01:00 <zmatt> earlier you said you had a "BBB rev C" (which doesn't have wifi or bt) so my understanding was you were talking about the user leds that light up during boot

01:02 <Patel> I have a BBB rev c and I have connected it to the wifi

01:02 <zmatt> no you don't

01:02 <zmatt> the BBB has ethernet, not wifi

01:03 <Patel> I have used the following code

01:03 <Patel> sudo connmanctl

01:03 <Patel> enable wifi

01:03 <Patel> scan wifi

01:03 <Patel> agent on

01:03 <Patel> services

01:03 <zmatt> the BBB (BeagleBone Black) and BBBW (BeagleBone Black Wireless) are different devices, be more precise. (the BBBW has no rev C)

01:03 <zmatt> please don't spam all that in chat

01:04 <Patel> sorry

01:04 <Patel> ya I do have BBBW, my bad

01:04 <Patel> just checked

01:04 <zmatt> if you followed a guide, just link to that. if you want to share a list of steps you performed and its output, use a paste service like pastebin.com

01:05 <Patel> Okay

01:06 <Patel> Since its a BBBW what about the three LED's

01:06 <zmatt> I already answered that

01:06 <zmatt> 02:58 <@zmatt> the power led indicates the system is powered, the wifi and bt leds indicate those functions are enabled (powered on, not necessarily in use)

01:07 <Patel> Cool

01:07 <Patel> How to check if I have Adafruit library on my BBB

01:07 <zmatt> it's installed by default

01:10 <Patel> How can I install numpy

01:10 <zmatt> btw, beware that Debian Buster is the last debian release that supports python2, it is no longer supported in Debian Bullseye. I don't know when the official beagleboard.org images will transition from buster to bullseye, my guess is it'll still take a while, but just be aware that python2 is dead

01:11 <Patel> Thanks for the information

01:12 <zmatt> oh actually, Adafruit-BBIO is only preinstalled for python3 on the current image, not python2

01:13 <zmatt> numpy is also preinstalled, for python3

01:14 <Patel> I have this general question, do we have different libraries for different python versions?

01:15 <zmatt> usually not no

01:16 <zmatt> I don't think there's ever a reason to have different versions of a library for python2 and 3 (instead of one library that supports both), but I'm not a python expert

01:16 <zmatt> oh, numpy has dropped support for python2

01:17 <Patel> Is there a way to check if a library exist on my BBB

01:17 <Patel> Thanks for the numpy info. I will keep that in mind

01:18 <zmatt> you can get a list of installed python3 packages with: pip3 list

01:19 <zmatt> actually I'm not sure whether that also lists python libraries installed as debian packages

01:21 <Patel> I used pip3 list and I can see all the libraries

01:22 <Patel> earlier I did install serial library but what I see is pyserial in that list

01:22 <Patel> Not sure if serial and pyserial are different

01:26 <zmatt> "pyserial" is a library for using serial ports, "serial" is a "A framework for serializing/deserializing JSON/YAML/XML into python class instances and vice versa" (and appears to be abandoned)

01:31 <Patel> Can you mention some automated tools that will help me convert my code from python2 to python3?

01:31 <zmatt> is google down?

01:35 <Patel> Since you were helping me out so much I thought you would have some good recommendation'=D

08:03 <set_> https://docs.px4.io/master/en/tutorials/linux_sbus.html shows a schematic of inverting via BJT NPN.

08:04 <set_> So, would I still have to port a TX pin (UART) from the BBBlue to the RX pin on the schematic to handle the 'inverted' SBus pin?

08:05 <set_> I ask b/c they are saying USB to TTL but I will not be using this converter on the schematic.

16:01 <zmatt> set_: the librobotcontrol sbus receiver uses pru-ecap instead of uart rx and doesn't need an inverter

16:03 <zmatt> (and you'd definitely never connect it to an uart tx (output) pin, that would probably destroy the beaglebone)

16:57 <Patel> Is minimalmodbus supported in python 2

17:01 <zmatt> Patel: why don't you just do what anyone who reads this question would do: just google minimalmodbus. the first seach result is its documentation, one of the first things in the table of contents is "Dependencies"

19:29 <set_> Okay...thank you.

19:30 <set_> I did notice the SiP getting really heated and the board would ultimately shutdown on its own.

19:30 <set_> Phew.

19:31 <set_> It still boots!