led circuit

This is my first ever shematics and also first time "designin"(lol) a circuit this complicated. The breadboard circuit also doesn't have any capacitors just like the schematics, I'll add them later, but that probably won't solve the problem. The XL6009E1 module is an adjustable boost converter...

Hello all, I’m helping my daughter with a design project and part of it needs a simple led control circuit. Using a single push button and 4 leds, I need an ic circuit that would light led 1 with th e first button push, led 1 &2 with the second, led 1,2,&3 with the third button push, leds...

Hello all, I'm trying to make a PCB for a LED-based lighting panel and I'm trying to wrap my head around the best way to layout the circuit. After a decent amount of scanning through the web, it seems like using voltage regulator(s) is a better way to go over the old LED array with resistors...