• Date JoinedFeb 11, 2009
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Tanmayg2 days ago

What should be the dimensions of pcb in radio transmitter?

wildan.mai2 months ago

is it okay to use 4400 mAH mobile power bank? and i used 11 piezoelectric disc how many1N4007 should i use?

number of diodes doesnt depend on number of piezos.
you should use the 4 diodes as suggested by ascas

1topsarge3 months ago

I need some help on how to wire the battery for the

DIY Phone Controlled FPV Rover (Fast & Agile)

I have the battery and the boards I need for this project, but do not know how to wire the battery. Please help.


hello Angelo..thank you for inspiring many people in electronics field..indeed you are surprisingly famous in my country now regarding your project of piezoelectric that can charge the power bank to the phone..well, I got a question to ask..did you do calculations before you did the project?if yes,may I have a reference on it especially the calculation of piezoelectric voltage and time taken to fully charge the gadget? i hope you can reply me asap..thanks again Angelo :)

nodcah4 months ago

Great profile picture! "I am fun" XD

Good luck preparing for college btw! =D

Hi Bro, have small doubt in "Electricity Generating Footwear" Step 9, I have highlighted a wire in red (cross) where it gets connected to. Please let me know


its going to piezos on other side

ASCAS (author)  sridharsrinivasan5554 months ago

I replied to your PM :))

mpmuebles4 months ago

very nice projects Angelo, please continue like this!

rcolon54 months ago

hi i tried to make a bluetooth speaker and make some noise and where i find a passive radiator

yhdesai5 months ago

I have participated in making windmill which drives most led without adding any circuit

of what should i make the fan

ASCAS (author)  yhdesai5 months ago

Nice! You still need to add a voltage regulator, otherwise you'll damage the LEDs once you reach the over-voltage point.

yhdesai ASCAS4 months ago

competition was on 2 oct

result will be declared on 19 oct

we had to use only 12 volt motor provided by them which did not gave so much power that leds might get damaged

what if you make a windmill
give it a try,its not as easy as you are thinking

andream_mae5 months ago

Ano pong fb group nio??