I decided to use 170-pin breadboards for this project because I wanted the entire circuit to fit into a small housing, and other breadboards with power rails on either side (or even just on one side) were too wide.The 7-segment displays are common cathode displays, but if you only have common anode displays you can use them as well but will have to tweak the code a little bit, more on that below.As shift registers we will use the CD4094 registers, but in principle you can use any shift register you want.It will also interface with the shift registers, the pushbutton, and the potentiometer. This project is centered around the PIC16F1455 microcontroller, which will store the texts that are displayed on the 7-segment displays.Here is a picture of all the components that are needed for the scrolling text display (and there is a detailed list in the resources box of this article as well): I look forward to hearing from you! What do you need? Let me know on social media if you built this project, or if you feel that something is missing from this tutorial. Use the PICkit3 to flash your custom message onto the PIC16F1455 or to customize the font.It can show as many pre-programmed messages as you want, with a total length of around 6000 characters.Eight letter display, but custom expandability.Here are the features of our 7-segment scrolling text display:
In this article we will go through all necessary steps so that you can easily build your own! Let's go :) Some time ago we learned how to use shift registers with microcontrollers, and in this project we will use them together with the PIC16F1455 microcontroller to build a scrolling text display.
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