8000 Increase default motor bus num_retry 0->10 by skalade · Pull Request #1349 · huggingface/lerobot · GitHub
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Increase default motor bus num_retry 0->10 #1349

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@skalade skalade commented Jun 18, 2025

What this does

Think this addresses a related issue: #1252. Right now using koch is broken unless these get increased. Running calibration or teleop it'll fail to read from motors:

ConnectionError: Failed to sync read 'Max_Position_Limit' on ids=[1, 2, 3, 4, 5, 6] after 1 tries. [TxRxResult] There is no status packet! 

I noticed that the defaults used to be set to 10 and the arms worked OK on that commit:

NUM_READ_RETRY = 10
NUM_WRITE_RETRY = 10

Right now this is the only solution that works for me, but happy to close the PR if there's a better approach!

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