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@samplereality The Pi is plugged in to a car DVD monitor, and it refreshes a certain webpage every minute. +
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@samplereality What the webpage sign says is controlled by a simple Flask web app written with Python, which I can access anywhere. -
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@samplereality The Pi is using Chromium's kiosk mode to go full screen at start up. danpurdy.co.uk/web-development/raspberry-pi-kiosk-screen-tutorial/