Cable Banana Socket with LED indicator

prusaprinters

BOM (Bill of Material)Cable - black-red: https://www.tme.com/us/en-us/details/tas-c102-0.75/speaker-cables/tasker/c102-0-75/Banana socket on panel - red: https://www.tme.com/us/en-us/details/bs-324-lg-r/4mm-banana-sockets/Banana socket on panel - black: https://www.tme.com/us/en-us/details/bs-324-lg-b/4mm-banana-sockets/LED - 3 mm, red: https://www.tme.com/us/en-us/details/l-937iid/tht-leds-3mm/kingbright-electronic/Do not forget the ballast resistor for the LED (e.g. https://www.tme.com/us/en-us/details/mp0.6w-1k/0-6w-metal-film-tht-resistors/royal-ohm/mf006bb1001a10/), but the value depends on your max. voltage (see below)How to choose the right Ballast resistor for the LEDIf you buy recommended LED from the BOM, parameters for formula are: V_LED (forward voltage) = 2.5 VI_LED (forward current) = 20 mA.Example: When your Source Voltage has maximum at 24 V so it is R = (24 - 2.5) / 0,02 = 1075 = ~1 kΩ Ballast resistor.Examples for other voltages with the same LEDVs [V]R [Ohm]Resistor from E12 series 5 % [Ohm]3.34039512512082752701037539012475470156255601877582024107510003013751500WiringsPretty simple, just check polarity of the LED.AssemblyJust few drops of Super Glue to side of panel.