<![CDATA[Max voltage input on USB port]]>Which is the maximum input voltage on the USB port?
Thanks

]]>https://forum.pycom.io/topic/830/max-voltage-input-on-usb-portRSS for NodeThu, 11 Jun 2026 18:58:37 GMTTue, 07 Mar 2017 15:58:44 GMT60<![CDATA[Reply to Max voltage input on USB port on Tue, 07 Mar 2017 15:58:44 GMT]]>Which is the maximum input voltage on the USB port?
Thanks

]]>https://forum.pycom.io/post/5022https://forum.pycom.io/post/5022Tue, 07 Mar 2017 15:58:44 GMT<![CDATA[Reply to Max voltage input on USB port on Tue, 07 Mar 2017 17:00:10 GMT]]>@Officina
Normally USB spec say about 5.25V but it is specific to device.
Why do you asking?

]]>https://forum.pycom.io/post/5023https://forum.pycom.io/post/5023Tue, 07 Mar 2017 17:00:10 GMT<![CDATA[Reply to Max voltage input on USB port on Tue, 07 Mar 2017 17:08:31 GMT]]>Hi @Officina, @livius is correct, the expected input voltage should be 5.25 V in accordance to the USB standard. You should avoid connecting anything over 5.25 V via the USB port.

You may wish to power the device over the Vin pin and you can safely connect a voltage source between 3.4 V and 5.5 V.

]]>https://forum.pycom.io/post/5024https://forum.pycom.io/post/5024Tue, 07 Mar 2017 17:08:31 GMT<![CDATA[Reply to Max voltage input on USB port on Tue, 07 Mar 2017 22:04:19 GMT]]>I want to connect a solar panel to usb port and using internal lipo battery charger. I found some solar panel with output around 5.5Volt.

]]>https://forum.pycom.io/post/5030https://forum.pycom.io/post/5030Tue, 07 Mar 2017 22:04:19 GMT<![CDATA[Reply to Max voltage input on USB port on Tue, 07 Mar 2017 22:40:24 GMT]]>@Officina said in Max voltage input on USB port:

around

Without stabilizer it is risky because sometimes it become much more, nominal 5V but in sunning day it can be 7V

]]>https://forum.pycom.io/post/5031https://forum.pycom.io/post/5031Tue, 07 Mar 2017 22:40:24 GMT<![CDATA[Reply to Max voltage input on USB port on Fri, 02 Feb 2018 19:33:01 GMT]]>Hi...i am a new user here. As per my knowledge 5.6v is out of spec and should be considered unsafe. Most likely it will work, since USB ports tend to be poorly regulated and these devices take that into account with lots of safety margin, but you risk your player doing so. You might want to look into putting together a 5v regulator circuit to be safe.

complete pcb

]]>https://forum.pycom.io/post/13376https://forum.pycom.io/post/13376Fri, 02 Feb 2018 19:33:01 GMT