day 25

I was working with 7 and 10 segment LED displays for my arduino, 7 segments are for making numbers any number from 0-9 with a single one and any number from 00-99 with two of them. They are controlled actually quite complexly. I found out that the ones that I have are actually reversed compared to others. MOST of them have common negative and then you just send a signal to the others to make it able to light up but this one had a common negative meaning that IF I wanted to make it work I had to hook power to the common positive and then control output through the microcontroller which it isnt meant to normally do. There is then the 10 segment display which is very simple it has 10 LED's in a row and I can control which light up, when they do it and for how long. Making it very good for displaying power levels.