I broke a seeding needle because the robot seems to have stalled at some point and lost its home position. It then continued the script. I would like to prevent this in my code.
How to detect stalling in lua to make the robot stop or do something else? Somekind of event listener.
Thank you
Hi @nbourre I think the Sequence block ASSERTION is for just this purpose !
(no event listeners)
I’m not sure how I could integrate an assertion block into a lua block. Unless, I must run an assertion block instead of a lua one which would be quite counterintuitive.
Where can we make feature request? An error callback function in any movement related functions would be quite useful.
Open a new post in this forum and enter it into the Feature Requests category, or, if you have a GitHub account then open a new Issue on the farmbot_os repository and mark it clearly as a Feature Request 
The FarmbotOS code which executes our Sequence (a temporary Erlang process) is strictly single-threaded (by design) and does not use Events so any callback facility gains you not much.
I’m sure @roryaronson will set our thinking straight on this question 