LED USB candle

thingiverse

https://youtu.be/d8oGNrZc4sU https://youtu.be/tYhKVuVkttQ DISCLAIMER I used a flashing RGB LED for this project, but you can use any 5mm LED that suits your taste. It can be solid-colored, slow-changing, or even have the effect of a flickering candle LED. As long as it's a 5mm LED, it will fit perfectly. However, keep in mind that this setup allows up to 27mA of current through the LED series, which is the maximum brightness setting. Please ensure your LED can handle this amount of current comfortably. If not, you can use a larger resistor - a 200 ohm resistor produces 25mA, a 250 ohm resistor produces 20mA, and a 300 ohm resistor produces 16mA. INSTRUCTIONS This was an easy project to replace the battery-powered RGB LED candle in a nightlight I built for my son. I originally designed the nightlight to work with an RGB LED candle from eBay, which you can find at the link below: http://www.ebay.com.au/itm/New-10-20-30-PCS-LED-WEDDING-TEA-LIGHT-TEALIGHT-CANDLE-FLICKERING-FLAMELESS/201168843821?_trksid=p2045573.c100033.m2042&_trkparms=aid%3D111001%26algo%3DREC.SEED%26ao%3D1%26asc%3D39923%26meid%3D53157d5a5e5e44468c973e67e06549d3%26pid%3D100033%26rk%3D3%26rkt%3D8%26sd%3D172158427096 To make this project, you'll need a few things. I used 1-3 5mm RGB Fast flashing LEDs, which you can find at the link below: http://www.ebay.com.au/itm/5-8mm-LED-0-25-0-5W-Straw-Hat-Red-Blu-Grn-Whi-Fast-Slow-6Color-Waterclear-Emitt/252568823084?_trksid=p2045573.c100033.m2042&_trkparms=aid%3D111001%26algo%3DREC.SEED%26ao%3D1%26asc%3D39923%26meid%3D53157d5a5e5e44468c973e67e06549d3%26pid%3D100033%26rk%3D2%26rkt%3D8%26sd%3D172158427096 You'll also need a 180 ohm resistor, which you can find at the link below: http://www.ebay.com.au/itm/100pcs-1-4W-Watt-0-25W-Metal-Film-Resistor-180ohm-1-precision-/172158427096?hash=item2815711fd8:g:X6oAAOSwZ8ZXBERL To complete the project, simply cut off the unused end of an old USB cable. Strip back the insulating and shielding to expose the following wires: Red = 5V+, Black = 0v or GND, White = Data +, Green = Data -. You don't need the white or green wires for this, so cut them back and insulate them with tape. Next, connect the red 5v+ wire to the anode of the LED (the longer lead). Solder the 180 ohm resistor to the cathode of the LED and the black wire from the USB to the other end of the resistor. Remember to test it in an old phone charger or a battery bank before plugging it into your expensive laptop or PC. How I Designed This