Parallel LEDs
21:24
How to Wire Multiple LEDs: Series vs. Parallel LED Circuits
20:16
How to Calculate the Correct Resistor for LEDs Light Emitting Diodes
14:39
Why resistors in series have different voltage (but same current)?
9:25
555 Water level controller
5:51
Magnet attracting and picking up copper penny, dime. And gold? With explanation and theory.
11:23
LED Resistor Calculation
8:35
Floating Signal Detection
10:20