Let's say I have a Python script that receives an IR signal and lights up an LED. We'll call it a "hit" indicator. In the IR transmission, let's say a person's name was embedded in the signal. How might I write or draw that name onto the official Raspberry Pi 7" LCD that is connected via the display ribbon?

closed as unclear what you're asking by Steve Robillard, joan, Milliways, Dmitry Grigoryev, Gene Dela Rosa Aug 29 '18 at 11:35

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  • in a GUI or command line application? If a GUI what library are you using for the GUI? if not a GUI a simple print("hit name of person hit") would work. – Steve Robillard Aug 16 '18 at 6:17
  • It is a command line application and you're absolutely right that a print would work. I was intending for something more like introducing a GUI in the way @Matt called out but couldn't find the right way to phrase that. Thank you for your question! – Beez Aug 16 '18 at 6:33

I'm sure there are many, many ways of doing this but one of the easiest would be to create a GUI with python's built in tkinter module. Size the GUI window to the size of the LCD screen and when the IR signal name is received, code a label with name received to be displayed on the GUI.

  • Now that you mention it, I have seen this before and had forgotten about it! I'm assuming this is capable of sending through the display ribbon? I imagine the ribbon works much the same way as HDMI? – Beez Aug 16 '18 at 6:29
  • @Beez Yes. It is capable. Think of it this way - the LCD screen you have attached to the Pi is effectively just a desktop monitor which can open applications, display windows, etc. By creating a GUI that is sized properly in tkinter we are simply opening a window that is viewed through the LCD screen. Regardless of how that screen is connected to our Pi. – Matt Aug 16 '18 at 7:25

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