A case in point is the LED and resistor assembly that [Skippy] recently ... And for those of you who plug in LEDs without current-limiting resistors, we’re going to assume that you’ve ...

Then knowing he needed 4 mA to power each LED for backlighting ... These old 1N5305 current limiting diode regulators are simply constructed from a JFET with an internal feedback resistor to ...

Consultancy has designed a simple board called the Pico Indicator to add LEDs to the GPIO and power pins of the Raspberry Pi ...