How to make a custom Arduino EMF RF Detector
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- Опубліковано 5 січ 2017
- How to make a custom Arduino EMF RF Detector
In this video we build a simple EMF(electromagnetic field) and RF(radio frequency)detector. This can be used around the home to detect leaky electronic appliances like microwaves, televisions, cell phones, etc. EMF detectors are used in "ghost hunting."
The .96in OLED display used in this project used two libraries from Adadfruit:
SSD1306
github.com/adafruit/Adafruit_...
Adafruit GFX
github.com/adafruit/Adafruit-...
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May I suggest: "10 PCB's for two bucks!"
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Thanks for this, I subscribed and hope to see more. My grandmother used to have me soldering parts on boards when I was 12 in her home workshop and I've always been interested in exploring it more. I used to mods my gaming systems when CDs were a thing (to read Writable and RW), learn to code in C++, PHP, HTML, Java, bought a PI many years ago when they were first coming out, set it up as a Linux server but not much more beyond that. Recently I bought a soldering iron, and after watching this video purchased an Arduino kit. I plan on watching many more to grow this interest into a more serious hobby. Thank you for sharing, and keep em coming.
Great little project. I think someone subscribed at the front door at the end there ;)
Really cool video and fun project :) xx
I have made several of these for our local paranormal research teams using simple transistor logic and old TV Rabbit ears for a detector, they do love them, however this one with it's display may well change their tingle down their leg to more of a discharge of thrill running down their legs! I will have to try these when I return to my home in the spring, right now I am in our winter retreat in the middle of the desert in South Western Arizona, and my tools and arduinos are enjoying their respite in South Dakota, where our sticks and bricks home stands. Right now there is one hell of a wind blowing up from Mexico and our Motor Home is rocking so hard I am almost getting sea sick, but it is all part of the life of a nomadic snow bird from the Dakota's. Thanks a million for the video, I do love studying up on such things when I can't solder them together in cases for the teams.
+Jerry Ericsson I'm glad you liked the video. Thanks. Enjoy the South West!
FYI it's impossible to tell what colour resistor bands are when your white balance is off this much.
You are talking about that resistor on 3:19 ? Thats a 10k resistor with tolerance ±1%.
Will this satisfy measuring similarly as an AM radio (like the noise aspect of am radio but just need measurement)? looking to find/make something that will pick up lower than am radio range, this looks to be a solution but would need to do side by side test, wanting to find dirty noise in signal cabling without hooking up other instruments and will be in confined spaces with the need to travel in a maze type situation. :) Thank you
i would like to detect a specifik khz signal would it be posibnelt to make it measure ie if a 150 khz frequency is around the area.
Great vid! Only suggestion - I like how you make the viewer figure out the resistors - but it would be cool if you would read off the colors. Due to too few glasses and too many beers at this end - I couldn't quite make it out :).
Its work to detect gold and silver ions. ?
What is the working principle of this Arduino EMF RF Detector?
How does it detect EMF?
custom?? then what range of frequency it can detect maximum?
I could probably really learn it this way...
This is great but what I'd like to do is have 2 auduarnos work together. One to receive the signals and one to produce the signals. The dominant EMF signal produced would need to be something simple that translates to a few different numbers based on frequency. How would I go about that? Also, for the experiment I'd like to do, I do not wish to send digital data. Just simple values that can be used as the input and output of a nueral network program.
could you caliberate it to milli gauss or gauss,sir
? i have project like this.
thanks
Can a 6-pin oled be used for this? How will it affect the code?
I need your help , I have a project on subsurface imaging and I thought I would use Arduino, but I am using radar technology and I don't know yet which sensors to use , I will be waiting for your response
Arduino Nanos have the highest baud rate I have found.
They are the best arduinos.
On the nano, when you upload the code to it does the code erase if not conected to a power source or is it permanently written until you decide to do new code?
J. Clowers The code stays until overwritten.
What does this levels means? What unit they are measuring? Thanks
High - really cool - please can you tell me what exactly this measures? Is it Hz; v/m; uT??
What's the investment total and is this measuring Milliegause?
Were these links to purchase equipment?
Hi, the value of resistor to the LED please ? The colors are not clear !
are those values in hertz ?
Does anyone know of a module that can detect EMF of much greater frequencies or of any tutorials where this is done? I’m thinking around 1-30GHz. Thanks
i know this vid is 5 years already. but i wonder if it can detect electromagnetic waves as high as 1700-2100mHz. can someone answer? thanks
& where is the code, Sir??
as i understand it, all this is doing is displaying the intensity of radiation present, yes? could this be tuned to specific frequency ranges?
It just picks up any electromagnetic radiation in the area. I imagine you could filter out certain frequencies
I don't have OLED screen. Can I use to Adafruit Standar LCD on this project ? Please answer to my comment. I hope you answer
Yes
I'm gonna be honest here I'm not sure what resistor to use, I only purchased my arduino yesterday and I'm completely new to everything, thanks.
Giorgio Gandolfo no problem, 220ohm
can you please give us the code without the lcd display, just the led, please
@@connor4317 Why would you need more code for that? Modify it to your own needs. Hint: alter the pwm code to modulate the brightness of the led.
When you put that in a case you won't be able to ground yourself on the resistor as you did in the video. Without doing that it's going to detect your hand!
what resistor is used in 3:41
The EMF Level is in μTesla ?
best part was "randomly shittin around there"
Could you add a temperature sensor to this set up?
Sure, You could use a DS18 or DHT11 or BMP280, whatever you like
how to clone Bluetooth signal rf frequency and control RC car
I like the project, but in my opinion you would improve your videos by A: don't keep something secret in an instructional video.
B: don't forget to post your code. I've noticed multiple people asking for it and it is still not posted.
C: don't explain every line of code. Just post the code and //comment in the explanation.
One man's opinion.
I believe he was referring to his many previous videos where he tells you what size resistor to use with the red led, even just the previous one he did. Akron I think your other points are somewhat relevant
As for the code... I'm not sure I agree.
Extreme detail is great for beginners, a waste of time for the more experienced. THere is certainly a balance to find.
Hi, Great video
I tried doing your example, but I just can't get it to work.
I don't have a 3.3M Ohm resistor (yet) but I do have 3 x 1M ohm and a 330K and tried setting them in series.
My probe was a jumper wire like yours just a bit thinner i guess. If I don't ass the resistors I just readings jumping up and down anywhere if I add the resistors I keep getting readings at 0
I only have like a starter pack of Arduino, so my stock of resistors are small. Is there anyway to do this using what I have ? Sorry for Asking but I just started out with Electronics
No it only works with the spec'd values
Okay and thank you for taking the time to answering me :-)
Michael Martinsen no problem, I answer all questions from my viewers.
Hey, Are you available to help any time soon?
I'm attempting to build this right now, but we're having trouble getting a reading from the analog output
Sam Ch-Ch hi Sam, thanks for watching the video and taking the time to comment. make sure you have the resistor correct, and you must be very close (less than 4in) from the source.
Is there any way that I could perhaps get in contact with you to discuss this directly. We are pretty sure we are using the correct components, however the readings are not consistent. Great video btw.
Sam Ch-Ch you can email arduino0169@gmail.com. that's the only way.
I'm just starting with Arduino, and I am following your RF detector video. Please correct me, but where you connect SCL and SDR to A5/A4, you appear to actually connect to A6/A5? This is confirmed by the A7 Aerial connector being next to your A5(?) lead? I am worried that I might make an error, so I would be grateful for your advice please.
Connect SDA to A4 and SCL to A5
@@learnelectronics I'm sorry, but you haven't answered my question about the video?
can emf detector detect mobile phone?
It should detect an active phone
Where can i get the code?
Open your arduino ide and type it.
Always love your video, Spent the afternoon trying to get your values in the code you have and did not post. Why? Why Why? I know it should be easy but its a shit job if you just care that little to post your code. Its not being copied. But used as reference. So would it of hurt?
The circuit diagram, please 😢
I counted 1.1Mohm. I swear I'm going colour blind. That orange looked brown to me.
I believe its 220
Yeah... so easy to tell with the white balance of the camera adjusted perfectly!
@@danthemancasey The 3:19 resistor looks like 120 ohm.
is the resistor 12 ohms
I think it's 220 ohms for the red led
where is the code
Where is the code 😵
Too hars
Too hard
3:19 looks like a 120ohm resistor. Brown 1, Red 2, Black 0, Black x0.
the problem is that can be 10k the exact opposite color sequence
Dont keep a secret of what resistors you use...
We dont follow your every video.
We want fast and easy way to understand how everything works not to search in the comments the whole explanation.
That is way i down vote :)
you got tonnes of resistor calculator sites
I'm learning mystery's suck!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
If you are going to make an instructional vid, don't be so arrogant as to keep it a secret and say you should know by now. Lost a sub here. I will find a teacher that is willing to teach... later
Aww gee David, did I hurt your wittle feelings?