This is somewhat related to the aim described in this post . I want to use dash to control a piece of equipment. User sets some parameters, sends the command to the equipment and then gets some data back to monitor variables of interest in real time. Maybe, for example, we start up dash and then sen…

[image] jwhendy: say, have one python file/thread writing interim data to a file, and a separate dash process where the callback would read that file? I hoped to avoid this so everything could just pass a data object around vs. having to rely on I/O. That’s what I would recommend doing. Creat…

Many moons later and I’m back to a need for this! Sorry for the delay, and I’m still finding this to be an issue. I think the issue lies in spinning up something else that is also watching/reacting/etc. from Dash. I think this post is similar and my need, I think, is bigger than just writing a statu…

[image] jwhendy: I can put some checks in a function like your example, but I don’t know how to pass foo around to run foo.publish() . Do you have recommendations of where to create some object you need to interact with, (assuming that this server analogy makes sense and is possible with Dash)? …

Just an update if someone stumbles on this. I ended up ditching this concept and separating Dash from the ROS infrastructure. It might be solvable, but I kind of gave up troubleshooting. I think the issue of having Dash be a ROS node is there are two things sitting there watching for updates. Might …

Update from a lurker. I manage to plot dynamically from a constantly updating text file. if anyone wants my code just shout out. I basically used a .txt in which I log the latest values in a data string a callback triggered by dcc.Interval that reads the values and sticks them in a dcc.Store anoth…

How to integrate dash with another process that might be blocking

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How to integrate dash with another process that might be blocking

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