Phone Flashlight

As you know, the flash of a phone can be used as a flashlight. But with prolonged use, it can burn out and fail, and it also spends a large amount of electricity, which is why the phone battery is quickly discharged. The advantages of my flashlight version:
  • Compact size.
  • Bright light (slightly inferior to the flash of the phone).
  • Low power consumption.
  • Easy to manufacture.
For the manufacture we need: 1. LED (diameter 5 mm, voltage 3 volts, white color). 2. Resistor 100. Ohm. 3. Micro USB plug with case. From tools: soldering iron and nippers.

Manufacturing process:

1. Approximately determine the length of the resistor and LED legs. 2. We fix all the contacts . 3. We need to close the contacts 1 and 2 of the Micro USB jumper (as shown in the picture). 4. We attach the LED to the resistor (in this case, it does not matter to which contact, without observing the polarity). 5. Contact 3 is (+), and pin 1 (-) (as shown in the picture),We solder the plus of the LED to the plus of the plug and the minus to the minus. 6. It remains to install the micro USB into the case and close it. Thank you for your attention!

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