Thank you, Paul! You have always made a great review!

Thanks for the detailed review!

Pretty neat little device, dude! Really nice! 😃 Great review!

I can't believe how cheap that is yet does the job perfectly.

Interesting!! Some time ago i received a similar module where i can set amplitude freqency and pulsewidth. Did not know that modules existed where you can select the number of pulses.

I had to watch it again, and this time i saw the numbers. I apologise to you man

Interesting presentation .Thanks a lot .

Interesting. Thanks for the FT8 contact this afternoon. (KD9KOI) Hows the new antenna working out?

Hi, can you recommend that as a hulda clark zapper or rife frequency machine? Thanks for your thoughts

Could it be modified with optocoupler and mosfet to increase the output voltage and current?

Does it change both the signal wave frequency and the pulse frequency?

How do I drive more amps to this device for an HHO (hydrogen) generator? Do I hook up a PWM to the output of this device? Thanks!

I wonder if adding C1 would clean up the output 🤔. The pulse output could be used to check the noise blanker on a transceiver.

How about building a pulsed electromagnetic field generator around this? MOSFETS?

There is also a pp2k version. It's just slightly more expensive (about 6-7$ total), but it supports an output of max 8A. I like to use it to quickly test dc motors or leds.

@homevalueglass3809

4 жыл бұрын

Hey, I've been trying to figure this out, on that 8 amp max unit, could you use that device direct to power and control a moter without use of mosfets or do you think it would burn out after a while?

@qinaan

4 ай бұрын

But I think ZK-PP2K does not generate Sine waves . Am I right?

Anewbie question here. How doesthis compare to the Kemo M048N Ultrasonic Generator? Beside the obvious of digital and analog. I had the M048N to a piezoelectric speaker and was able to adjust the frequency via the knob on the front, with the frequency Audio Frequency: adjustable approx. 8 - 40 kHz (± 20%. If this device you reviewed can be connected to a piezoelectric speaker, I will buy 8-10 of them if you put an affiliate link in your description on your videos. Thanks.

My pwm's whole screen is pulsing but I can't adjust any settings. When I remove the coil it functions normal. Any ideas what this can be?

thanks for the review - now i know it has a input protection

I’m looking for a frequency generator that can be controlled with PWM input. Can you help with finding that?

Could this be used to test a fuel injector from a car?

Does anyone have any idea how to connect two of these units in tandem, so that the first in the row,acts as a timer for the second?. Thanks!

It's definitely to early when you say mm where it should be cm. If it where mm this thingy would not fit between your fingers and you need a microscope to read the display. But hey you trying to use our metric system to tel the dimensions. Love your channel and happy thanks giving. With kind regards from the Netherlands Dinant

Dear can we set the amplitude of the pulses?

I got wsfg 06 there's no backplate, where can I get? I need it be portable with 9v adapter aligator clip jump wire 19 awg with at least some decimal points, current xy pwm i git only is whole numbers, why is this?

can someone please answer my question cuz im very confused rn. does this little device make the electrical signals go from positive to negative or does it just turn off and on? in your video you put the oscilloscope to dc and to me it seems like it just turns off and on, and it doesnt go form positive to negative. i might just be trippin, if i am someone pls tell me!

Love the ruler 😊 I want one. JLCPCB right. You get one with orders. Yes??

All that tryptophan and you could not sleep? Well then, guess I was lucky to see a Friday video from you then. Have a great weekend Paul, stay warm.

Paul, what application is this device used for? I ask as I don’t know?

Thanks for the video. Do you know how could we change the shape of the wave forms?

@learnelectronics

Жыл бұрын

It only makes square pulses. You could use a some high pass filters to make a sine wave

What does the pulse generator do? I know you can control motor for pwm,but what is pulse generator?

@zikermu

3 жыл бұрын

en.wikipedia.org/wiki/Pulse_generator

Is it not coding for activation?

Where did you buy that ruler from with the components on it.

@Leif_YT

4 жыл бұрын

You can find them on AliExpress and probably also in ebay. Usually they're sold under the term "pcb ruler"

@tomaims

3 жыл бұрын

@@Leif_YT thanks

Tell us about the roller too!

HI There, Very good explanation and testing, thank you. Is it actually a positive offset frequency?

Question I've started doing research to create a 20khz arduino to get rid of bugs in the yard. I know the bugs could adapt and end up sticking around but I did purchase plants that the bugs don't like. So far one or two mosquitoes come around. So the plants work. Would this module get rid of bugs at 20 Khz? Thank you for posting your video. I've learned more from KZread about micro controllers, coding e.t.c Glad people take time to share there knowledge with others.

@learnelectronics

2 жыл бұрын

I wish I could help you man, but I don't know a thing about bugs.

The holtek chip isn’t the microcontroller, it’s the display driver.

I just bought this the 2 version tho idk what it is lol what is it for? I thought it was a frequency generator… so now I don’t know what to use this for?

@TMRu22311

Жыл бұрын

Glad I'm not alone! Every video of these devices just shows them hooked up to an oscilloscope to show the square pulse waves, but what is the general purpose of this device? What applications would it be useful? I am new to electronics, so that may be a dumb question, but I am asking because I would like to know.

Stick to inches when you measure, because you don't understand the difference between mm's and cm's.

If the outputs reach the antennas, does it become a transmitter according to the frequency we want?

jawa timur hadir om

Think this could supply a 5v signal to a vag coil on plug, almost to imitate an ecu signal

It's the old-silly-scope :o)

Please identify INPUTS and OUTPUTS please

@zikermu

3 жыл бұрын

fr.aliexpress.com/item/1005001738425686.html?spm=a2g0o.cart.0.0.42023c00kh68Ql&mp=1

LOL I bought a small voltage regulator but it was 30euro to control a DC motor before I understood a PWM device can do it and waaay cheaper :) I will get one of these, only need fond a better deal than Amazon in Germany , there they charge 20 dollars for the same...

Could you possibly do a review of the SOUTHWIRE 14070T multimeter? Ive begged Joe Smith,Dave @ EEVBlog, and numerous other Tubers to no avail... I know you like checking out new multimeters and would hope you could give some credibility to this awesome device! I use a FLUKE 87V for work on 480v Three phase motors and believe the SOUTHWIRE is comparable. The construction is durable and protection is adequate...please help. I could also send you my meter for review if you are not incline to buy one. Thank You FRED

cost 22.00 to ship for 5 dollar part.

Hi, how to use this device in metal detector? thank you

dimensions are in centimetres 😉

Hi there the measurements it's centimeters not millimeters!!!!

2/3 quarters mm? Hmmm ha ha im just having fun and pulling your legg dude

It's verily! Or earlate! Ha-ha! I just hit Amazon up for something similar, but paid about 4x the price! I'm building a lil pulse battery charger, for 3.2v to 28v batteries, I'm gonna experiment with possibility of desulfating lead acid batteries, and possibly deplating lithium ion and LIFePo4 batteries, I have about 40 LiFePo that basically died on the shelf!!! Been shelved to death, 3200 mah, test at 300-600 mah, a few have 2400 mah, but they all act funny, more like a capacitor charged by a small battery, they will discharge , self charge to nominal voltage,a few times, while discharging 100mah or so. As long as it's low current, I was hoping to get about 10ahfrom them for a landscape / nightlight, 3-4in series, and about 10 ah, but they aren't close enough to put in series, maybe 3 in series with 4-5 cells paralled, then series with 2-3 in parallel, to get 3 or 4 groups with close capacity, so they stay in ballance, I'd be better off using all that have capacity near 1ah and up, parallel, and just use a boost converter, to get 9-12v 1amp. I don't have any that will go down to 2-2.5v and boost to at least 9-10v they make small 0.5v to 5v usb,500ma output, most boost are from 4-8v do you know of any that will do about 2amps to be safe, and multiply voltage about 5x ?? Happy holidays!!

Milimeters! Really!

06.20!)))))👍

CM! not millimeters!

1 usd buys you $1.33 in canadian Pesos. So $5.31 Canadian, haha

Exercise a little, my friend, you see that you can barely breathe, your fingers are swollen. Take a walk.

@learnelectronics

2 жыл бұрын

You mean my constive heart failure can be cured with a walk? That is fantastic, wonder why none of 3 doctors that treat me never told me all I had to do was walk. Wow, now I won't need a heart transplant in 4 years. Thanks mister, you're the best!

It was less than 10 minutes for me to get queasy and want to go to sleep after I ate.

Cm no mm

Centi... oh never mind, we all knew what you meant, bloody french.

@TheAlasFelatio

4 жыл бұрын

@@remley8877 Probably a drunken comment .... I've spent all day in airports and shitty small planes, barely know my own name at this point.

@shirro5

4 жыл бұрын

Does anyone outside of foot pound countries and elementary schools even use cm? Pretty much all the prefixes that aren't 10 to a multiple of 3 are pretty much obsolete and absent from science, manufacturing, industry etc.

@tookitogo

2 жыл бұрын

@@shirro5 Yes, centimeters are commonly used.