usb to ethernet display

LK/ELK/VK/PK/OK/MX/GLK/EGLK/GVK/GLT Series

Moderators: Henry, Mods

Post Reply
tanasi
LCD?
Posts: 3
Joined: Thu Aug 23, 2007 7:22 am

usb to ethernet display

Post by tanasi »

I am hoping to use a lcd display to display an error or insriuction after a ticket is scanned at a gate using a usb to ethernet converyer. Any suggestions or resources.

B
Ray
Matrix Orbital
Matrix Orbital
Posts: 745
Joined: Thu Dec 13, 2001 4:00 pm
Location: Earth.... I think..
Contact:

Post by Ray »

Something like this might work, (and a couple more show up when searching for usb or serial over ethernet on google) but we have never tested such a setup so we cannot guarantee it will actually work.
tanasi
LCD?
Posts: 3
Joined: Thu Aug 23, 2007 7:22 am

Post by tanasi »

Yes I saw those but was wondering if this has been tried...evidently not. My concern is powering the lcd from the usb hub.... What is the minimum power needed for the lcd module and what do you recommend as a model number to use in this application.

B
Henry
OMNIPRESENT
OMNIPRESENT
Posts: 3014
Joined: Tue Aug 14, 2001 6:00 pm
Contact:

Post by Henry »

A 2x20 LCD will use somewhere between 120-180mA and a 4x20 might use up to 250mA... so all within USB power specifications.
Henry J.
President
Matrix Orbital
tanasi
LCD?
Posts: 3
Joined: Thu Aug 23, 2007 7:22 am

Post by tanasi »

will I have to regulate the power or will thet work on a range of voltages. I am thinking I will power these throught the blue pair of the ethernet and there may be some voltage drop at 5 v. at a distance so I thought 12v and accept the vo;tage drop at the server end or regu;kate it there.

B
Post Reply