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Active marker deck and Multi-ranger deck will not work together due to I2C address collision #1438

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tobbeanton opened this issue Nov 28, 2024 · 4 comments

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@tobbeanton
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Even though the Active marker deck and Multi-ranger deck both are top decks they could still be used together. The compatibility matrix also says so. However when using them together the "MR: Init right sensor [FAIL]"

After investigating it we found that it is due to a I2C address collision. The Active marker deck has address 0x2E and the right multi-ranger sensor gets assigned the same address.

Temporary fix is to manually go in and change the new address space for the multi-ranger here and add e.g. +10 instead.

@lyharvill
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This is also true for the lighthouse deck.
The I2C address of the lighthouse deck is apparently 0x2F.
The temporary fix for for the I2C address space above fixes the problem. I just tested it on the Bolt.
Might be good to have I2C addresses used by decks on the compatibility matrix.

@gemenerik
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Adding these to the compatibility matrix may be a good idea.

Are you saying the Lighthouse address also collides with a Multi-ranger address?

@lyharvill
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lyharvill commented Dec 20, 2024 via email

@lyharvill
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lyharvill commented Dec 20, 2024 via email

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