USB LED Light by using Supercapacitor

For those who never observed about supercapacitor, you can examine for more information and facts about supercapacitor here. Supercapacitor is generally a capacitor with very higher potential, and the potential score is normally around few Farads. With the “super” potential, it generally can shop a lot of cost, and I am going to use the “super” potential to shop expenses for a 5mm LED. We will see how lengthy will the 5mm LED last.

Step 1 Tools May required :

The elements you will need for this project is generally a supercapacitor (I am using 5.5V 0.1F supercapacitor which I purchased from Farnell), a Light LED, a 1K Ohm resistor and a USB men plug (I get this from an damaged pendrive).

Step 2 Supercapacitor Polarity :

Make sure you know the polarity of the supercapacitor, or refer to its datasheet

Step 3 Soldering :

The first phase is to cut the 2nd and 3rd pin of the USB men plug, we will need only the 1st and 4th pin (5V and 0V pin).

Then solder the adverse pin of the supercapacitor to the 4th (0V) pin of the USB men plug.

Now, try to hook up the optimistic pin of the supercapacitor to the 1st pin (5V). For the relationship I am using a resistor leg.

Next, hook up the optimistic pin of the Light LED to the 1st pin (5V) of the USB men plug.

Finally, hook up a 1K resistor from the adverse pin of Light LED to the 4th pin (0V) of the USB men plug.

Step 4 Schematic :

Please examine the plan below for the finish schematic. You are actually totally able to use greater Farad supercapacitor, but current score must be bigger or similar to 5V, and you can have your innovative way to hook up all the elements together.

Step 5 Testing :

Now, connect it to your pc for around 10-30 a few moments to cost up the supercapacitor.

You should see the Lighting LED switched on (if it does not switched on, there are some error in the connection), then after 10-30 second, you can remove it and you should have around 10 moments of the LED gentle.