Inspired by ASCAS, I made electricity generator by walking with the help of piezo electric element as i wanted to understand working of it.

https://www.instructables.com/id/Electricity-Generating-Footwear/

you can charge your mobile phone while walking as it produces enough voltage of around 5v.

## Step 1: Gather Materials

1. Piezo elements/transducers

2. 470uF Capacitor

3. 1N4007X4 Diodes

4. 5v step up converter

5. Duct Tape(To adhere piezo element on footwears)

## Step 2: Working of Piezo Elements

Piezo elements come in handy when you need to detect vibration or a knock. You can use these for tap or knock sensors pretty easily by reading the voltage on the output. They can also be used for a very small audio transducer such as a buzzer.

If we apply pressure and release, the the charges between the elements collide and electric field is produced in it. The electric potential is created and thus we get energy!

Voltage generated by a piezo element: 4-6v

## Step 3: Creating the Circuit!

Here presented circuit makes the voltage from piezo element suitable for mobile, mp3 player, etc.

Firstly rectifier circuit is there which converts the voltage of piezo element to DC Voltage. Then 5v step up converter is attached parallel to capacitor. The output got from 5v step up converter is suitable for mobile charging.

## Step 4: The Final Step!

Now just affix the piezo element to footwear and then, your hardware is ready to charge your mobile, mp3 player or tablet.

<p>I too made this project a few years ago. I used around 5-6 peizzos(mind the spellings) and it still wasn't able to charge my smartphone. I even tried with a feature phone that I had back then( It was a samsung phone I don't remember the model) And it couldn't even charge that phone. And after that I can safely say that this project is pointless. No offence to you.. I appreciate your effort and I'm sure you learned quite a lot from the project.</p><p>cheers.</p>
Yes, i learned that the current are not wnough but my nokia phone was showing charging sign when connected.<br><br>I know the i balanced the voltage bu current is less so not enough power is generated. Thanks!!!!!<br>
<p>You could use a circuit to boost your amperage.</p>
May the current be small but its 5v from step up converter is enough to charge the mobile and i have tested it.
<p>It produces voltage, but not current. And what you need to charge your phone is wattage: multiplication of volts and amps. So since amps are near to zero, the wattage is also near to zero. Which means: it will load nothing, never, nowhere. Simple as that.</p>
did you measure the power output? I don't think it can light up a LED.
<p>Install one on the toe of the shoe, flip flop or whatever, and you double the capability as well. </p>
Nice idea. Thanks bro!!!