Hey guys I need someone's help. I'm new to this and may have the wrong concepts. I bought a 2 digit 7 segment led with common anode. I've done some research here and on YouTube and found that I can hook up the cathode pins to some digital output pins on the arduino and set them to low. Also I've found out that I have to put a current resistor between the cathodes and the digital pins. Also it is recommended to use the 3.3v on the a ;)node side. I'm planning of just using one led to get the basics straight. I'm currently using the arduino uno r1.
Well my question is the following: when I set the output pins to HIGH to turn off the led, wouldn't that cause a reverse voltage on the led?
Thanks, and sorry for my bad English.