What value for polarized capacitor on XM430-W210-T

Hi all, I use XM430-W210-T

On E-manual Robotis provide schematics for TTL communication :

Between DXL_PWR and GND, they offer a 0,1uf capacitor BUT also a polarized capacitor.
What is the value of this polarized capacitor ?

Thanks in advance,

It depends on the VDD noise frequencies that you would expect. From my previous readings, some folks have used 1 uF, or 470 uF. For my “homemade DXL shield” project, I used 1 mF (16 V) capacitors - from my available stash at the time - and so far they work out OK for me.

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