[mircemk] built a slick-looking LED tester with a couple handy functions built in. Not only can one select a target current to put through an LED, but by providing a target voltage, the system will ...

If you are seeking to get involved in electronics projects or are already doing so, you may still be getting accustomed to certain concepts – including the importance of LED resistors in circuit ...

This tool is used to determine the value of current limiting resistors needed to connect multiple LEDs. Reset the calculator after each calculation. The LED Series Resistor Calculator is a simple yet ...

Create a CircuiTikZ file of NPN 2N2222 transistor driving a LED. Draw the black ground from (0,0) to (4,0) and label it "GND". Draw the positive rail in red from (0,0) to (4,0) and label it "+5 volts" ...