Hi, I’m very new to this stuff so please forgive my ignorance. I have a project in mind, but I’m not sure about the details/feasibility, so I thought it would be better to post here before I end up buying parts that aren’t compatible.
I’m planning to make the circuit I’ve attached, with 13 SK6812 LED strips (60led/meter) that are cut to 77cm each (10m, 600leds in total), 13 AM312 PIR sensors and an Elegoo Mega 2560 R3 with a 5V 60A 300W switching power supply.
I’ve done a lot of reading and I’ve gathered that the strips will need a total of 180W (18W/m * 10m) and will have a current draw of 36A (180W/5V).
I know how to calculate resistance but I don’t know how to work out which resistor I need or if I even need one at all in this circuit. Any help would be appreciated.