Wow! I have no experience with something like this, and yet you manage to make me understand every part of it through your careful explanations. I wish I had teachers like you.
No need toremove those caps. That only helps if the caps are AFTER the shunt resistor. In this case they might actually make the result worse and make your pulses less sharp, since the capacitors would provide a fast transient response.
Hello, to avoid ground loops, I started to use a 220v cupeling transformer. And I do not put it on ground. Basically this transformer is a 200v:200v trasformator, it is a working solution
Bro, use an op amp to increase the voltage difference over the resistor. Use capacitors on the power terminal of the op amp or use a battery to power it.
If there's one thing I always get wrong with arduinos, it's counting the pins. I once plugged in a lipo battery into the wrong pins and I've never seen so many Sparks in my life
Hello, thank you for your educational videos. I'm working on a similar project now. Don't really have any technical background other than school a long time ago. So, you are using female to male flexible wires to attach the resistor to the chip? @LiveOverflow
Kinda wondering why your rigol is not hacked and running on 300MHz :D Also Caps infront of your resistor should make your results better, you only need to remove them after your shunt resistor (between it and the VCC pin)
Wait, so are you saying that lot of the capacitors in modern electronics are just there to smooth out the signal? If so, how do you tell really important caps from not-so-much important caps?
cyancoyote Trace the tracks plus trial and error. Some caps will be part of an oscillator circuit (RC/RLC) so it could just really screw up, if that's the case and the board stops working, resolder the cap in place
Awesome vidéo ! And just a small tips ;) When I try a new circuit or when I am not sure about my wiring, I use a power supply with current limitation (depending the circuit, but around 200mA for a microcontroller) to prevent cuicuit burning. Maybe you will do the same ;p. (And a good power supply as a floating 0V to prévent ground loop. Also, USB power supply is not really stable, it could disturb your mesuring.)
Had quite a laugh when I saw smoke coming from the board, awesome video as usual!
You deserve a like just for that SMD pin to through hole resistor to pad soldering xD
Wow! I have no experience with something like this, and yet you manage to make me understand every part of it through your careful explanations. I wish I had teachers like you.
Absolutely nerdgasm'd just from the title
rekt Valb same i was like "yess omg"
"Science, it works. Bitches!"
lmao
No need toremove those caps. That only helps if the caps are AFTER the shunt resistor. In this case they might actually make the result worse and make your pulses less sharp, since the capacitors would provide a fast transient response.
Awesome content, as usual. Keep it up !
Hello, to avoid ground loops, I started to use a 220v cupeling transformer.
And I do not put it on ground. Basically this transformer is a 200v:200v trasformator, it is a working solution
Bro, use an op amp to increase the voltage difference over the resistor. Use capacitors on the power terminal of the op amp or use a battery to power it.
Magic Smoke!
+liveoverflow Can you update description to include the RSA intro video referred to in intro of this video?
done. here: ruclips.net/video/sYCzu04ftaY/видео.html
Just use math mode in oscilloscope to substract ch1 to ch2 and get the differental voltage across resistor
3:14 Actually, I think that those who slept in physics class are more likely to make that question because they don't know about Ohm's law and shunts!
If there's one thing I always get wrong with arduinos, it's counting the pins. I once plugged in a lipo battery into the wrong pins and I've never seen so many Sparks in my life
"Science - it works, bitches" is my new senior quote
Oh my gosh. You had me laughing hysterically! Great stuff.. I can totally relate! Cheers
huh?
@@cvspvr
I had to watch it again. I think the segment at 9:15 - 10:15 is what I was referring to.
I could see this happening to me.
Good video :)
Hello, thank you for your educational videos. I'm working on a similar project now. Don't really have any technical background other than school a long time ago. So, you are using female to male flexible wires to attach the resistor to the chip? @LiveOverflow
What is the name of the board at 0:05. Thank you!
Kinda wondering why your rigol is not hacked and running on 300MHz :D
Also Caps infront of your resistor should make your results better, you only need to remove them after your shunt resistor (between it and the VCC pin)
I don't know anyone that hasn't done the hack on day 1 -- when it arrives..
9:43 "I can't count..." Made my day xD
Action at 9:19
Wait, so are you saying that lot of the capacitors in modern electronics are just there to smooth out the signal? If so, how do you tell really important caps from not-so-much important caps?
cyancoyote Trace the tracks plus trial and error.
Some caps will be part of an oscillator circuit (RC/RLC) so it could just really screw up, if that's the case and the board stops working, resolder the cap in place
Thank you very much :)
Great video!, It remembered me when i blew up some op amps at school.
you absolute madman
I connected the ground to the resistor so many times, totally didn't know of ground loops
good work, what about the implemented arduino code used for testing RSA in this video?
Awesome vidéo !
And just a small tips ;)
When I try a new circuit or when I am not sure about my wiring, I use a power supply with current limitation (depending the circuit, but around 200mA for a microcontroller) to prevent cuicuit burning. Maybe you will do the same ;p.
(And a good power supply as a floating 0V to prévent ground loop.
Also, USB power supply is not really stable, it could disturb your mesuring.)
Where do you work now
Why not desolder the AMS1117 and use your own power supply for 3.3V, and run the 328P with 3V3?
what's the tittle of CTF
The next samy kamkar
is it simplest way? For example using arduino uno instead of arduino nano ?
This is a challenge, and the contestants are given the Arduino Nano as a target. They have no choice.
Laptop's GND does not necessary connected to the Earth.
Great video! I’m gonna go home and smoke some mariana!
Cool! New video! :)
We've all had those days...
I'm from staten island!
There is no groundloop even if the laptop is plugged in. The charger is electricaly isolated
oh my god why you use SMD component ?
"VAARKK!"
It's much easier to cut the trace, and scrape the solder mask.
What's marianna :D
mexican tomato sauce
Well i wouldn't just say remove all the caps. some of them prevent noise from dc/dc converters!
Neat (Had to say something, since there weren't any comments yet)
They're arresting people for having marinara? 😂😛 love your videos and you got me interested in hacking and reverse engineering. Keep it up 😉
No, Marionna.
I liked the Richard Dawkins reference...bitches
Science! it works, BITCHES ahah
Ach und eine Katze hast du auch ?
Bist du eigentlich deutsch? ;D Die Aussprache ist zwar gut aber irgendwie zu deutsch xD
Okay gute deutsche Sprichwörter xD
"Ohm's law to the rescue" xD
Ja, er ist deutsch
"mariana"? XD Its pronounced "mar-uh-wah-nuh" - ruclips.net/video/DwlhKYKmfCg/видео.html