Hey all. Question about the 7 segment displays. I purchased the small 7 segment serial display from SparkFun (https://www.sparkfun.com/products/11441 … 1469921714) and created a little mockup of a counter system with Arduino. I have the program running smoothly and am looking to upgrade to Sparkfun’s Large 7 Segment Displays with the driver boards. However when I looked at the hookup info for them, I noted they have 3 wires leading to the Arduino besides power (Latch, Clock, and Serial). However, my mockup with the mini display only runs off of 1 pin, the “RX” pin. I am curious if there is a way to wire the large displays to be like the smaller display and only run off of 1 pin from my Arduino, because honestly I do not know what the other pins (clock and latch) do and don’t know what kind of coding would have to be changed to make it work on the large displays.
Any info would be appreciated and I can post more info if necessary!