What value for polarized capacitor on XM430-W210-T

[MechanicalWarriors]

Hi all, I use XM430-W210-T

On E-manual Robotis provide schematics for TTL communication :

ROBOTIS e-Manual

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,
Regards

[roboteer]

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.

"Homemade" DXL Shield

Like many folks, I was also interested in creating my own DXL Shield and I found this TTL Communication schematic on ROBOTIS e-Manual It uses the 74LVC2G241 which is a surface-mount device which has 0.38 mm wide leads set 0.65 mm apart from each other. Unfortunately, a home user like me does not have the soldering tools and skill levels to handle such a small device (3.1 x 3.1 mm overall size). Thus, I needed a different solution using Dual-Inline type of devices with similar functionalitie…