Are there any problems with using 12V DC with z-uno?
Posted: 19 Oct 2018 11:33
My project that I am working on needs a 12V DC power supply for a solenoid. If I just use this connected directly to the Vin pin of the z-uno will I run into any problems with heat on the z-uno board? What does it depend on.
I am trying to determine whether I should use some sort of voltage regulator (simple linear regulator?) to drop the voltage down to 5V before passing it to the z-uno. I've been reading extensively but this seems to be one of those topics where the more you read the less you realise you know.
Presumably if I connect 12V the z-uno will drop this to 5V resulting in ~.25W of heat to dissipate which doesn't sound like too much to me (12V-5V)*35mA. Can this go up by much if I add a few other components (e.g. real-time clock, keypad, wifi)?
The technical specifications talk about an external switching DC-DC. What exactly is this referring to, and is it something I should be using?
Thanks again for anyone who can help this very new enthusiast.
I am trying to determine whether I should use some sort of voltage regulator (simple linear regulator?) to drop the voltage down to 5V before passing it to the z-uno. I've been reading extensively but this seems to be one of those topics where the more you read the less you realise you know.
Presumably if I connect 12V the z-uno will drop this to 5V resulting in ~.25W of heat to dissipate which doesn't sound like too much to me (12V-5V)*35mA. Can this go up by much if I add a few other components (e.g. real-time clock, keypad, wifi)?
The technical specifications talk about an external switching DC-DC. What exactly is this referring to, and is it something I should be using?
Thanks again for anyone who can help this very new enthusiast.