AndresR145

Hello again! That really strange. May i ask what RTC-module you are using? Do you have the the CR2032 backup battery inserted in the RTC-module?

Hello! Sure, the RTC is an I2C coupled module available as the standard Arduino RTC shield. It runs on an DS3231 clock chip.

As always the most simple approach is the best one. Great work!

No, this is just an ordinary potentiometer to be trimmed with a screwdriver.

Ah ok, this is the potentiometer R5(22K).

A red and black element? You mean on one of the pictures, the video or are you refering the schematic?

Hi! Sorry but i don't know about what element you're talking about. Where is the black and red element you mentioned? Is it on one of the pictures, the schematic or the video?

An awesom and somehow crazy idea! I really love it. Good way to ruggedize your smartphone.

Thank you so much for your comments. I loved to fuel your imagination!

An incredible great work!

An excellent question! My first intention of using a stabilized rpm was that everything you do not understand properly has an impact on your setup. So i made it this way to be safe. Later i thought deeper about this issue. Generally the disk-segments are rendering a current flowing into the charge collecting capacitor. The faster you turn the disk the more current flows. On the site of the charge collector you have an unavoidable leakage current because your capacitor isn't ideal and the electronic amplifier always has some input current. So the first finding is that the current from the segment disks must be larger than the leakage current. You need a minimum rpm. The second question is what happens if we exceed this minimum rpm more or less? Obviously he charge collector will charge m...

An excellent question! My first intention of using a stabilized rpm was that everything you do not understand properly has an impact on your setup. So i made it this way to be safe. Later i thought deeper about this issue. Generally the disk-segments are rendering a current flowing into the charge collecting capacitor. The faster you turn the disk the more current flows. On the site of the charge collector you have an unavoidable leakage current because your capacitor isn't ideal and the electronic amplifier always has some input current. So the first finding is that the current from the segment disks must be larger than the leakage current. You need a minimum rpm. The second question is what happens if we exceed this minimum rpm more or less? Obviously he charge collector will charge more or less quickly but up to what limit? Well, the upper limit is specified by the fact that every disc segment is a capacitor by itself. It takes some charge and generates a field against ground. By dragging the segment away from the grounded plate the energy of this charge gets amplified resulting in a voltage. When the segment gets in contact with the charge collector it takes this charge up to it's voltage. That means the voltage on the charge collecting capacitor can't get higher than the voltage of the segment. The conclusion is that we need some minimum rpm. Above it an increase of the rpm only results in a faster charging of the charge collecting capacitor but it doesn't change it's end voltage. So far the theory, it's unproven yet.A calibration is generally necessary because actually we just have digits with no dimension. I'd have to put the device between two large metal plates and apply a voltage to it. So i could calculate the field strength and the field would be more or less homogeneous. Then i could take the digits and calculate the proper transformation factor.

Pretty nice idea!

It's 480 rpm!

Great idea, thanks!

Sorry! Yes I know the article on wikipedia and no, I don't drive or own a Delorean.

Thanks! I also made the FET charge detector. The problem with this device is that it still takes energy from the field. In my experience it was only needful to detect changes of electric flux but you could not measure a static electric field.

I'll check it and will tell you.

No, but i'm still looking for one on Ebay! :-)

Great! I was always looking for something like this. Fuels my ideas!

A really nice idea and remarkable craftsmanship.

What a great idea and realized very well under heavy time pressure. Excellent!

Thanks for your polite comment! I actually was not earlier but growing old teached me it's lessons

Thanks for your polite comment! I actually was not earlier but growing old teached me it's lessons😏

Due to my experiments there was only a near field where you could get a reasonable amount of energy. My setup was oscillating around 1.2Hz and i could illuminate a CFL up to a distance of about 30cm pretty good while the apparatus was drawing 1A@12V. Then i tested how far i could pick up the 1.2MHz with an AM pocket radio. The signal vanished around 150m distance from the coil. So i couldn't see any long distance effects.

Wow you really digged in deep into this matter! My respect! I just did a bit on tesla coils but regarding the resonance issue i realized a setup you might watch for a self resonating tesla device. But beware of getting too much expectations. It's not a huge spark and streamer thrower, just a small humble device. https://youtu.be/Gs7t5reHMSc

All this replies are correct but i must emphasize thet one argument is missing. A battery actually is not an RC-circuit. One has to consider the chemistry in the battery. Will the chemistry follow those quick PWM impulses or will they be more or less averaged out by it?

Nice and accurate instructable. Thank you.

Nice project and you made a really good and understandable documentation. Well done!

Simple and great!!

What a nice idea!

Thank you so much! My mechanical skills are pretty limited but i tried my best.

Thanks you like it!