Where to pull LED: VCC or GND?
9182
Driving LED with PIC 5V
47825
RGB LED and which drivers
106974
Which way to draw diode in a circuit diagram
37859
Help understanding this schematic : Why is the diode there (AT89C2051 Programmer)?
152407
Does a self-powered USB device have to connect to VCC from the host port?
151190
Line level voltage to drive LED display
97680
What happens to the semiconductor in an LED when it is given voltage that it cannot handle?
133986
Multiple two pin multi-color LEDs pattern - how does this work?
124910
Is a current-limiting resistor required for LEDs if the forward voltage and supply voltage are equal?
2819
Why exactly can't a single resistor be used for many parallel LEDs?
88109
Why my DAC works without GND and VCC?
122522
Interfacing switch and LED
93037
Difference between a LED Backlit and LED HD Display on laptop monitor
61767
How can I make a bluish "white" LED less blue?
62888
How to power a button's LED within a guitar?
112999
How do I select the accompanying components for an optocoupler?
60594
How do I pick a part that goes into a breadboard when I order it?