Where are your pages coming from? Simple script trying ggered by a GPIO interrupt to print the page source or a modified version of it to reflect an internet source perhaps? On 5 Jan 2018 15:28, "Van Horn, David" wrote: Feel free to retag if this isn't engineering enough. I'm looking at digital signage software for the Raspberry Pi, but I need to integrate a USB thermal printer and a button so that while a given screen is up, a button press will print out a reminder tag. Tons of options out there, but I haven't seen any that have this simple feature. Have you seen something like this? Any ideas how I could hack it into an existing digital signage package? The part being printed doesn't even need any graphics, just text is fine. Button press performs piping file X to the printer, but when the graphics change, file that prints needs to also change in sync. -- David VanHorn Lead Hardware Engineer Backcountry Access, Inc. 2820 Wilderness Pl, Unit H Boulder, CO 80301 USA phone: 303-417-1345 x110 email: david.vanhorn@backcountryaccess.com -- http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .