How do I use an Arduino to switch another IC's pin (reset) to ground?
I am trying to turn an IC's reset pin to ground with an Arduino. It is a 5 LED array that has an IC controlling several flashing modes. I need to reset the IC to change modes and I want to use an Arduino Nano. I have seen an explanation setting an digital pin to input and then making it low and then setting the pin to output but I don't understand the process. Supposedly it simulates a momentary push button switch using an Arduino.
I guess I need a very thorough explanation for someone from the slide rule era.
Thanks in advance.