I have a Synology DS218 NAS which is a lower end unit but absolutely what I need to back up and manage my photo library. I have become aware of the potential for a power disruption to corrupt the NAS and with a bit too little research purchased a Digitech online UPS which features external device power management via a USP connection.
Unfortunately it turns out this brand is not one of the (many) that the (Synology) NAS does support but the supported options all appear to cost as much as this relatively lower end NAS.
I have begun thinking using something like an Arduino to read the signals from the NAS and convert them to a supported format.
Sounds simple…..I am Sue it is not as easy as I am hoping but I would really appreciate some advice from more knowledgeable Arduino members before I head down this rabbit hole :-).
Thanks for any and all advice
Mike
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Assuming the protocol is not documented, the first issue is that you probably first need to capture full communication before you can reverse engineer it.
For that you may need to borrow a supported UPS first and then use a multimeter and logical analyzer to check voltage levels and analyze the used protocol.
Thanks for the guidance Railroader. My UPS, like many, outputs power status, errors etc for their client monitoring apps via a USB connection but it seems there is no standard approach and many OEM specific formats are used. Likewise while NAS' typically use USB to read the status of the NAS providing power, from what I can see they typically appear to use their own formats and messaging protocols.
I am looking at the feasibility to use something like arduino to monitor the USB output from the NAS and convert it to the format that Digitech expects. I appreciate the next step would be to understand the formats and messaging details but I was initially just looking at the feasibility of doing it. I could do it on other computer platforms, they just dont make sense for this use case.
There is quite a level of discussion about this requirement in the NAS forum I belong to and there is potentially a commercial opportunity here if it is indeed feasible.
Thanks
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