Friday, October 30, 2020

How to control a 4 digit 7 Segment Display from Raspberry PI with Python #piday #raspberrypi @Raspberry_Pi

via peppe8o

Its operation is based on persistence of vision principle: you can drive one digit at time, so you must drive each digit at a speed so that human eye cannot perceive power off moments.

When using 4-digit 7-segment display, please notice that if it is common anode, the common anode pin connects to the power source; if it is common cathode, the common cathode pin connects to the GND. This guide is based on cathode one, nut anode works with the same code by inverting digit selection logic.

Read more.


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