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Thanks for coming up with the library :). At some point I want to give it a shot. I know I have at least one of these LCDs around, but it might be the other controller-ILI9341. Im not too sure what the difference is but when the time comes i'll have to look it up.

Making my own mouse but this comes in clutch

Hi, good video but I believe what you used is called only USB Micro connector that supports USB 2.0 standard. USB Micro Type B connector looks a little bit different and it support USB 3.2 Gen1 (formerly known as USB 3.0) standard.

Very cool video, will be great to see more about pic.

Thanks this helped me a lot

Love the tool and the example shown. Trying to use your font outputs on another platform and I'm trying to work out how your compression algorithm is working. Do you have any references that you can share? Specifically when you use tftstSetWindow() and then start writing the data, is it writing each pixel column first and then when its done all the columns it increments the row?

How do you get smooth transitions of numbers on the timer? I cant seem to avoid screen flickering.

تضرر مقياس الخاص بي (vc 9808 multimeter) عندما قست مكثف10u مشحون ب 300v .😢.. لماذا أصبح يعطي.قيم خاطئة للمكثف ؟ماالذي تضرر بالمسار؟ هل يمكن إصلاحه؟ ارجو مساعدة ومراسلتي شكرا لك

can someone tell me the formula he is using to compute inductance.

这表AC毫伏很好

FunStackLabs, your video is fantastic! You're a pro!!! Thank you!

The only inductor I have tested using this method and got very accurate values

Is there any way to measure input impedance of amplifier with just a multimeter as well?

Where can i get that pcb board (i have the usbc connector but can't find the pcb to solder it on)?

I never saw you put solder on 5 pins on connector or board? Did the connector come pre tinned?

Please be careful when using a breadboard. It will create frequencies that will enter your body and cause damage. Wrap either the breadboard or your body in tinfoil to block out the frequencies. You must be careful with frequencies

Please be careful when using a breadboard. It will create frequencies that will enter your body and cause damage. Wrap either the breadboard or your body in tinfoil to block out the frequencies. You must be careful with frequencies

icsclk is shorted to ground, what should I do? programmer, pickit 3 like original

This would have been much more useful had you shown how to do this with a simple power transformer than anyone can scrounge from and old appliance or radio or something and if you'd actually shown the formulas step by step. The internet is already saturated with elitist crap like this. Why not post a video that is useful for the vast majority of people instead of this elitist crap?

The procedure is correct, but: Breadboards are not ideal components, and they can create parasitic capacitance and inductance. These parasitic elements can alter the impedance and resonance of the circuit, which can cause the circuit to behave differently at high frequencies than at low frequencies. I recommend using a 1X1cm^2 phenolite plate with solder. Google (The effect of high frequencies on "breadboards"​)

I have PIC10F200 and 18F4525s and a few 16F chips. I can get them working without much trouble. But, I bought five "18F452s." I have spent countless hours trying everything: assembly language, c language, buying new oscillator crystals, trying tonnes of different code from various sources. tearing down and rebuilding the circuit. -adjusting all the config bits, adjusting the pins from analog to digital in the adcon register. watch dog timer is off, brownout is off, LVP is off. Nothing gets these damned 18F452 chips working! MPLAB sucks sometimes. Lack of Microchip support doesn't help either.

is it also possible with a pwm signal from an arduino instead of a signwave of a signal generator?

Thank you for letting me know how to remove those damn banana tips. Wasted a huge amount of time trying to sort it out. Pliers aren't so much necessary once you get the trick - just apply a little bit of sideways force (like you're trying to break the tip off a pencil while also unscrewing the tip). But yeah, glad to finally get that sorted.

Hello. I am using Pickit3 for programing my PIC18F45K42. I have a problem with LED blinking. In code i set the while loop to bling the diode 5 times, but it keeps blinking forever. Does it something has to do with configuration bits of PIC18F45K42 or is something wrong with connections and my microchip maybe is resetting nonstop ?

Great video. Thank you. I have bought one in order to program a dsPIC33EP512MU810. I loved the way you explained everything. I would love to see some c programming tutorials on your channel with mplab.

This is great. I learned a lot. Thanks.

Interesting effort. With the small inductors you are measuring the coil resistance drop too. One thing you need to be aware in any digital multimeter is they have a precision error quoted as % of full scale e.g. 1% *plus* a few digits/counts of error. The later dominates at the lower end.

Thank you for the video, almost any other creator uses Arduino, very refreshing!

i am using mplap ide and i got the error - Address: 0 Expected Value: 120a Received Value: 3fff does anyone what is that

Would it be correct to estimate the output impedance of the signal generator is around 1k7 ohms?

Very useful. Thanks a lot for sharing

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great video

Can you share the math part of the calculation?

how's the mic so far? I don't see many reviews on it, but I did purchase it. should be coming by Sunday. I know that it doesn't have a gain adjuster on the mic itself, but do you know if there's any other way to adjust the gain?

❤️👍🏻👍🏻👍🏻👍🏻👍🏻

I used to put a capacitor of which I trusted the capacity in parallel with the inductance, and see at what frequency the voltage across the parallel was minimim. With the resonant circuit it is much easier to make the measurement.

Nice as concept but not practical. Is you are using a signal generator might as well get LCR

Hey, FunStackLabs I'm you're 101th subscriber. 👍☺

سبحان الله العظيم

Thank you. I learn from you. Best like for you

I think "midrange" is an wrong statement for that meter. I will call it an high end handhield meter that is at least as good as Fluke meters. Considering the price it's a bargain.

Thanks for making this video. Most modern function generators have a standardized output impedance of 50 ohm. Older units will have an impedance of 600 ohm. Small function generator kits may have an undetermined or unspecified output impedance as you observed. Here’s the way I approach the issue. Given Voc as the open circuit voltage of the generator, RL as load impedance, Ro as output impedance of AWG and Vm as measured voltage across load impedance we have a simple voltage divider circuitry with Vm = Voc*(RL/(RL + Ro)) If load impedance is adjusted to the point where measured voltage is one half Voc then 0.5*Voc = Voc*(RL/RL + Ro)) Solving for Ro we have Ro = RL That is, the point at which the measured voltage (across RL) is equal to one half Voc the load impedance is equal to the output impedance. (You are dropping equal voltages across both load and output impedance). In my case I have an AWG with 50 ohm output impedance. To measure this I simply set the AWG to some arbitrary voltage and measure Voc. Then place leads across a 100 ohm pot. Set to 100 ohm and continuously decrease pot and measure voltage until measured voltage is one-half Voc. Remove and measure RL of pot. That is your output impedance. In your case it would be necessary to use a 1 K pot. I typically use a 10 turn pot in order to give me more accurate results.

Can you give some suggestion on the iron, flux and soldering substance? like which one would be better and easy to use?

One final observation. I was thinking about the bandwidth limitation of the DMM and speculated that it might effect the calculation at higher frequencies. However looking at the formula for capacitance C = Vr/(2*pi*f*sqrt(V^2 - Vr^2)) Where Vr is resistor voltage and V is circuit voltage. We can divide numerator and denominator Vr to get C = 1/(2*pi*f*sqrt((V/Vr)^2 - 1)) We see that the capacitance depends upon voltage only as a ratio of V to Vr meaning that if the DMM has the frequency dependence of a low pass filter (which it does) then it will reduce both V and Vr in the same proportion and thus the V/Vr ratio and calculated capacitance will be unaffected by the DMM frequency defendant attenuation in amplitude. So it may very well be possible to use the DMM at higher frequencies for this application and not have to worry about it’s bandwidth. In my case the DMM I use has a useful bandwidth of about 2 k Hz corresponding to the -3dB point. Another thing I would suggest when dealing with small capacitance values is to measure the resistor voltages by at least 2 significant digits for better accuracy by using higher frequencies. Although you got good results with the 82 and 22 pF caps it makes me a little nervous to see the resistor voltage carried out to only one significant digit when being compared to the circuit voltage.

As a footnote to my last post here's the way to determine the output impedance of your AWG. First set the output to some arbitrary voltage (setting it in RMS value makes the math easier because your DMM measures only RMS). Then measure the open circuit voltage of the AWG. If your AWG has the option to choose Hi-z versus 50 ohm (or some other value) no problem. Just use the open circuit voltage as your reference. Then place a 1000 ohm potentiometer across the output terminals and set to 1000 ohms. While measuring the voltage across the pot decrease the resistance until the measured voltage is one half the open circuit voltage. Remove the pot and measure its resistance. That is the output impedance of your AWG. At this point one half the output voltage is being dropped across the pot and one half is being dropped across the output resistance of the AWG. In my case I have a 50 ohm output impedance so I only need to use a 100 ohm pot. The results I get are within 1 ohm of the nominal output impedance. One caveat is that, if you are using a handheld DMM to measure voltage, consider that they typically have limited bandwidth. Eg the measured voltage from my Brennen 235 falls off quite a bit beyond about 1700 Hz (sine wave) so you need to consider this when doing your measurement so as not to use too high of a frequency. An option if you need to use higher frequencies for lower value caps would be to use your scope as the output which doesn't have this limitation. As an aside it is typical for older AWGs to have output impedances of 600 ohm or so. The newer ones are typically 50 ohms. Based upon your measurement in example #1 in the video I estimated the output impedance of your AWG to be 460 ohm. It would be interesting to see it's measured result.

There is something wrong about your measurement at 5:16. You are measuring the RMS value of the total voltage delivered by a sinusoidal source with V peak to peak of 1 V that should give you an RMS voltage of about 1/(2*sqrt(2)) = 354 mV which is what you obtained for this on subsequent measurements. Since current (I) is Vr/R and Xc = 1/(2*pi*f*C) we have for a basic formula Vc = V - Vr. So V - Vr = Xc*I V - Vr = (Vr/R)/(2*pi*f*C) or rearranging: C = Vr/(2*pi*f*R*(V - Vr)) Using 111.18 mV in the first capacitor (as measured) would give one a capacitance of 53 microF. Using a more realistic V of 354 mV would give 6.2 microF neither of which is correct.

Excellent video! Thanks!

👍👍

Well that was a shitload of work but you did it! And not only that, you saved yourself 65 cents on AliExpress ! 😂😅