It works well! I have 15 LEDs with one 220 Ohm resistor and 5v each and the other side has the GND. How I wanted to wire it in Tinkercad but didn't find a module for GND- so I wired them all to the breadboard's GND.
As you can see this is messy. I really want to have the GND on the LED be a small component. Does something like this exist? Would allow me to only have one wire to the LED and less mess. Basically one wire to the LED from the pin and then on the other leg of the LED just a GND part/ component.
Not sure what you mean, btw couldn't you just bring one GND wire to all the LEDs and then connect the GND from one to the next one?
I mean something kinda this:
I moved your topic to an appropriate forum category @lennardships.
In the future, please take some time to pick the forum category that best suits the subject of your topic. There is an "About the _____ category" topic at the top of each category that explains its purpose.
Generally yes, that'd be easier, but I want my LEDs to be used in an art project. I have a 30x30cm canvas and distribute them over it and then stick them out through holes.
What I could do is have one GND pin expand to 4 3-pin rows so each corner has 3 pins to use for GND, and I can bundle them. Is that the easiest for this?
Maybe a small scheme (pencil on paper drawing is enough) of your installation together with approximate led distribution could help me better understand...
Blue boxes: LEDs Green boxes: Small breadboards w/ GND and the pins connected to the Arduino Dark blue box: Arduino itself Back arrows: Wires, but not all.
I did only add all paths of the wires to the sketch and didnt show the resistors to make it easier.
This should show it all good. The leds might change in their order but I will most likely have a few breadboards with GND and all cables to, which manage a group of LEDS.
