Raspberry Pi FM Radio Transmitter | Tutorial

[@Seytonic]

If you have any questions/problems regarding this project ask them here --> www.reddit.com/r/seytopia/comments/5tuhsc/raspberry_pi_fm_radio_transmitter_tutorial/

[@tv8g]

The issue its even a pi3 with all the cores has Issues compilling FFmpeg its possible it just takes arround +1 hour

[@andreamitchell4758]

shadilay brother, so if pi zero can transmit FM radio then what else could it transmit and how does it do this ?like if you wanted to control RF things 2.4 Ghz you still wold need a super hetrodyne right? i wonder if this would be able to be used for some car audio projects , plug your phone into the USB and play MP3 on your phone through your car stereo maybe add a mic to the GPIO pins and a button and maybe a bluetooth dongle or a way to get audio out form the 3.5mm jack to the pi

[@Craft4Cube]

Seytonic Have you tried using PiFmRds

[@JoRosieQueen68]

Anyone here from the Lone Survivor's Director's radio? that allways made me interested since in the case of a cataclism or an event,you could just transmit stuff over the radio,so the survivors are hearing it,good stuff to see,this pi radio really reminds me of that,good job,I'm subscribed now.

[@painfulwill]

You will not be able to reach 2.4GHz, however, you could possibly use an upconverter but you would end up spending a few hundred bucks when you could buy an actual SDR for the same price. However yes you could transmit for listening on your cars radio, however, you'd most definitely would need a license for it to be in regulation.

[@DrIridium]

"I will only do if for like 10 seconds" -running for about a minute -I earlier tested the range about my house Definitely only 10 seconds :D But great Video!

[@Marfprojects]

To improve Sound quality, you can wind a another wire from the negative rail around the Antenna, that will work a lot better.

[@eitan_schwartz]

Cool!

[@RutujGavankar]

Never thought you'll be a part of our Kekistani republic... We're honoured to have you!

[@Seytonic]

Shadilay brother Rutuj.

[@PepsiMan42069]

Rutuj Gavankar I want to reply to this but it has the sacred 69 likes

[@spadookielikesgames9330]

5:57 interrupts NASA rocket launch and sends a rocket to Pluto

[@crowman8914]

Part 97 interference 🤣😂

[@WiredAl]

Another vote here for a direct SSH video. It's a simple process that a visual guide for would be immeasurably valuable to have.

[@aaronedw77]

Do not underestimate the range your signal can travel. A Raspberry Pi with clean filtered output using a ham radio mode called WSPR has been heard over 5055 miles away on 14.0971 Mhz! It would literally take just an extra minute to make a primitive bandpass filter from some scraps of cat6 wire. Cat5/6 has a capacitance of 15pF/ft between the wires in a pair. To make an inductor wind 7.5 turns around a pen to make a 400nH inductor, then take 4.8 inch of a pair and connect the same color ends together from that wire (Blue-Blue, White-White) there is your 6pF capacitor. Solder it to the end of your inductor. This will form a simple Bessel bandpass filter that will reduce harmonics by -10dB for 0$ However you would need -43dB to use one as a real transmitter and that will take more than some cat5 scraps. Please take some time to learn about RF before you go transmitting with this kind of thing. You can unexpectedly do great harm and get yourself in lots of trouble. You should also look into earning your amateur radio licence. The test is not that difficult and there are a whole world of frequencies opened up for experimentation if you get a licence. It is the best hobby in the world.

[@AjarSensation]

How can I increase the transmitted signal to reach say 5 kms?

[@teabagfc]

S H A D I L A Y

[@greedsin555]

Kekistani pride world wide

[@aaalexxx900]

Dom Thorrington la mia libertà

[@hamad9068]

Greed Sin >mfw uses outdated and expired meme

[@maxe.6260]

I've tried this a few month ago. I used a USB soundboard and transmitted the mic input to FM. This way I can just connect my phone to it. The only problem was the quality. It's a nice pi project but for constant use, I'd recommend an FM transmitter from Amazon. They're like 10 bucks.

[@Laurensnl]

I tried this out and it works, but my goal was to transmit an internet radio stream. However, I couldn't get it to work. I was getting constant errors about the wave header missing, whenever I used SoX. Then I thought of a different and possible better method. I installed Pi MusicBox and used an aux fm transmitter, which I bought years ago to use on a car radio. I extended the range of it by soldering an antenna to the board. Now I can stream music and internet radio on my Pi and transmit this to my old tube radios. Multiple benefits: no unwanted harmonics and an allowed signal. Meaning I won't interfere with any other frequencies and the signal itself won't leave my apartment. The sound quality is also a lot better using this dedicated transmitter. In the future I might buy a HifiBerry DAC to further increase the sound. Another good idea might be to build a transmitter from scratch to have more control over frequencies and a knob to control signal strength.

[@JK-ww8dn]

where is the link to the fm transmitter software??

[@nathantron]

Wait.. How did you SSH into it? Through the USB cable, how did you manage that?

[@faridwakim]

Nathan Trone i am not sure but he may have used the usb connection to share his pc network and he ssh'd into it. or he also may have just used the power from usb and sdh'd normally

[@0xbitbybit]

It's probably the new Pi Zero W with in built WiFi.

[@Lucavon]

Flash Raspbian onto the Micro SD. Mount the boot partition, edit cmdline.txt and add "modules-load=dwc2,g_ether" behind "rootwait" but before "quiet". Make sure to use Notepad++ as it will not break the line endings, and don't add any new lines in this file. Next, edit config.txt. Add the line "dtoverlay=dwc2" at the bottom. Lastly, shift-right click in the folder, and click "Open command prompt here". Type "copy nul ssh", enter, then "exit", enter. Now, put the SD into the PI and connect it to your PC via USB. Install the "Bonjour Printer Service" software, restart the PC. Open PuTTY, connect to "raspberrypi.local". Boom. Connection made! If you want to let it access the internet through the USB port, make sure you can connect to your Pi over USB and that it is recognized as an RNDIS Ethernet Gadget. Now, open the "Control Panel", go to something like "Network- and access center", on the left choose "Change adapter settings", select your main network, right click. Properties, then choose "Sharing" (or something like that) in the top, enable connection sharing, and select your Pi Zero's emulated ethernet adapter as the target. You can now access the internet on your PI. If the connection fails and you can't find something like an "RNDIS Gadget" in your Device Manager (devmgmt.msc), download the Acer RNDIS driver from the Microsoft update website. Now, press the Windows key, type "devmgmt.msc", right click the device manager, run as administrator. Look for "Serial Devices" or something like that, find something along the lines of "Serial USB Device", right click it, update drivers, choose a file from the pc, let me pick, choose the file you downloaded (extract it to a folder and choose the ini file in there).

[@theanonomanchannel9991]

putty is what was used to SSH into pi zero via usb to share pc network ...if you see the video properly you can see it

[@MattyoP1960]

@@theanonomanchannel9991 how do i do that

[@CodyFurr]

The new camera looks great!

[@HobkinBoi]

I think that this could use some filtering and an amplifier, you could definitely broadcast a distance away. Maybe have an SSD full of music and a solar panel so you can play all the time in the woods or something

"these peaks..." are harmonics of frequency you are transmiting. please put some simple filter on the output, otherwise you will polute spectrum with hamonics, which can be illegal

[@KingJellyfishII]

They were there before he started transmitting, however you are right it needs a low pass filter.

[@martindejong3974]

You can't add a filter, because the lead to the filter is already enough antenna for the higher harmonics.

[@maxmick1376]

Hey, I just discovered your channel and wanted to say that it is absolutely fantastic! Your videos are very detailed and easy to follow. Anyways, keep up the outstanding work! -Max

[@NinjaSpotted]

Yes, please do a video on how to ssh into the pi (if you can explain where to get the IP adress and etc.) and I would apreciate you could stay active on those yt comments, it would help a lot guys that have the same question and you didn´t talk about on video. (Love your channel and the camera is a good improvement!)

[@atdit]

I think you can extend the range if you connect the antenna to the house ground.

[@lemonbob8312]

You should do a video on ssh:ing into the raspberry pi

[@Seytonic]

Will do!

[@jaybk]

I agree!

[@ranjeetsaha3717]

plz plz plz plz plz do it.

[@TheNeoxpert]

What if we send data over FM instead of Music? How high would be the Bitrate and the range?

[@aadhilthanseer8823]

Great video. Is there anyway to transmit voice in realtime ?

[@K0nr4d_]

Perfect timing! I was just looking for a new project for my pi. I will definitely try that out.

[@-HDR]

Using sox lets you stream internet radio to FM, if anyone is looking to do that. Example (This stream is an mp3 stream): sox -t mp3 stream.p4.no/nrj_mp3_hq.m3u -r 22050 -c 1 -b 16 -t wav - | sudo ./fm_transmitter -f 103.3 -

[@Laurensnl]

Does this require ffmpeg and other libraries? How to stop transmission? I can get the star wars to play but I'm not able to stop it.

[@rejikurian5689]

What an Ad. To the point, just got me hooked to it. Brilliant stuff guys.

[@breadwarandcircus]

By Kek's will this Channel has hit my sidebar. I am starting to like KZbin's attempt to get their PC AI together. Not so sure it can cope with the variability of 5h1tl0rDz

[@DeandreSteven]

"here were going to be using the national anthem of kekistan" shadilay my brother. have a sub

[@0xbitbybit]

Pi Zero W with in built WiFi released in Feb. Find IP of the Pi, open Putty, put in IP, connect, login with standard login(pi, raspberrypi if I remember correctly), boom you've SSH'd into it. Surprised there's that many people that don't know simple SSH.

[@cocoiscool1000]

Sam for real

[@BBUBst]

I copied your tutorial on the PI3 I would like to boost the signal. In theory what technology would be needed

[@jensschroder8214]

There are 0.1 watt FM transmitters to buy in Germany. Commercial radio stations have 1,000 to 100,000 watts. Because few AM frequencies are available, everything has been squeezed into the FM band for 50 years. Good luck finding a free frequency there. But little is going on in the 27 MHz CB band. Legal devices are also cheap there.

[@tomasdanielnieto5398]

With the same concept a cheap rc car can be controlled. It's quite fun to have more range thanks to using wifi rather than the limited included remote

[@WarpRadio]

I know this is an OLD post and all... however, if that is a TRUE spectrum representation, then thats actually transmitting AMPLITUDE MODULATION and NOT frequency modulation!

[@CommanderCrash]

Have you ever used rpitx? And what is the best range one can achieve with a rpi3 radio?

[@maheshmakwana1989]

How we can transmitter our voice (microphone voice signal) through FM????

[@ashkat64]

Could you make a short-range Wifi jammer with that?

[@sunhariyaden91]

Nice ! How to add external mic in and line in audio input ?

[@ILikeAltRock]

Question: I have been wondering if I can do this just with my computer without the Pi. It would help if I could get any answers thanks.

[@miwoegroupcorporation4903]

Many thanks to you for sharing. What is the range of this antenna

[@4.0.4]

I just came for the content but the Shadilay made me subscribe.

[@adamskalka4508]

Hey, can you please make a video on making the radio run on boot? I have tried it like a million times, but i simply cannot get it to work. Thanks in advance

[@Nowheretobefound344]

i want that too

[@twistiefresh1974]

9:38 YOU DID NOT JUST PUT AN *ACTIVELY POWERED* CIRCUIT BOARD ON HOT GLUE! D:

[@Luca-jy8ne]

Twistie Fresh well, he called that solder joint good, so…

[@DarrynJones]

And the scissors!

[@ezadoo]

It would be a nice, if there is a way for using this fm transmitter with the shairport-sync to use it with airplay.

[@AmCanTech]

Way to do it without sokder ? Maybe in a pi wh ?

[@dynamodrone8061]

do you need to use a pi zero w

[@ConfuSomu]

Dynamo Drone No, you can use any Raspberry Pi model

[@ro.avgeek]

I know im late but is there anyway to connect an antena without sodering

[@xdxfxzx]

Could you use this and write a program to basically communicate between two pi's over a decent distance? making one listen while the other talks and vice versa then maybe play a game of quake over the connection!

[@lukatrades]

can you make a vid how to transmit picture over radio?

[@jrgenantonsen9050]

can you make a fork bomb to the 3$ arduino rubberducky?

[@yfs9035]

Yes

[@marinroscamabbing8632]

Is it possible to talk in that radio station, made with the raspberry pi?

[@kweezy_play2866]

Yea

[@AjarSensation]

And how can I modify the transmitter so that its range would cover say 5kms?

[@GuavaPlayzPsx]

What’s better Malduino Elite or rubber ducky?

[@MrKristian252]

I figured the transmitter was allowed at maximum 50 nW which is about 4 - 6 meters. Is it a way I can adjust the output?

[@AmazingCodCasting]

Is that a Corsair Vengeance K90 keyboard I see at 0:12 because I have one too!

[@HobkinBoi]

Can you attach an RF amplifier to it (of course, with a filter attached to reduce any harmonics)

[@xcelcd2278]

hey..buddy could u help sort the raspberry pi to transmit video n audio over a short distance using ESP 8266 wifi module..!!

[@julian4064]

Does it take over a frequency? like if our car is listening to 100.7 and I transmit to 100.7 what will they hear? my song, the song that was already playing or just scrambled noise?

[@waddles543]

The cars radio would pick up your signal, but chances are even if your signal is right there the radio stations will be many times stronger, and all you would hear, is your audio mixed in with the original stations. A faint background noise.

[@ethanwebb6122]

just glue the raspberry pi 0 to the charging pack. lol

[@ice-uc5xr]

so you could interrupt another transmitter with this? i.e. a radio news network or police radios or something ?

[@Seytonic]

Technically yes, however that would be very illegal.

[@bmxandbikegames]

Were do you buy a raspberry pi fm radio transmitter from

[@ilanstechworld486]

what is a very long range antenna for this kind of stuff?

[@minege02]

Cool ! Thanks :) ! Just one question : Where do you buy your stuff (pi zero, arduino, etc ?) Cause it look like you have a lot of them ! Banggood :D ? And, with which software do you look at RF ?

[@Handballprofi117]

Minege I think he buys the arduinos from aliexpress or ebay

[@minege02]

Mr Black Olaf Nils Thanks very much to both of you!

[@painfulwill]

I'd recommend GQRX for viewing the RF Spectrum

[@hoboj2346]

If I use a bigger antenna will the reach of the radio transmitter increase?

[@waddles543]

Yes, however without boosting the voltage output of that antenna the audio quality will decrease.

[@morsonstudios8995]

it wont let me play my own songs it says data corrupted

[@dudenugget]

same

[@speeder3235]

Is it in .wav file format?

[@james10739]

is there a Bluetooth fm transmitter hake that you know of that would be cool

[@muhammadzahir946]

Hi Great video. Can I call this a software defined radio?

[@SaumyakantaSahoo]

Thanks for mentioning my fork :)

[@suislidesullivan]

Could you research and make a video on how to make the add-on filters that HAM operators use on these Rpi's to connect them to conventional antennae and use them as an actual transmitter station? I have a feeling you will come up with a much cheaper solution then what's currently available. Maybe even another Indiegogo project? I have a concept involving a PiZero with one of the mini RTL-SDRs attached to it listening on the same GMRS channel my Baofeng radios are on for DTMF tones from the keypads on the radios to activate the Pi's GPIOS and or record transmissions and relay (parrot repeater) or record and play back (message system) using this method to transmit but with a proper filter and antennae in place.

[@te0nani]

0:49 so there went all the pi zeros. They're almost impossible to get where i live and then they cost you almost as much as a normal pi.

[@kv-2743]

te0nani almost $30 in my area.

[@te0nani]

life just isn't fair -.-

[@ericjx]

Be careful with them (the wifi variant) when you do. I've treated my well but one of mine completely lost it's ability to use wifi. I looked at it under a magnifying glass and it looks like the wifi chip might have had a tiny bit of damage (literally grain of dirt sized mark on it). They're only $10 online, btw. $5 8 day shipping though.

[@tobiasmuller527]

In swiss 5CHF = 5$

[@remboldt03]

103.3 is "Radio Hamburg". You can hear it 24/7 if you are here.

[@petrasjonuska6305]

Really great work that you are doing here! Keep it up!

[@DotanS]

Hi will it work as a prank if im near a radio for instance in a car with a friend and i transmit it to a radio station thats playing or it wont cause he original station is stronger?

[@SaltyViper]

Should work fine, its only slightly illegal, i doubt th fcc is going to get on your back for a low powered transmitter though.

[@Andrew_OHara]

love your videos, you have inspired me to get a raspberry pi! I also brought the Raspberry pie projects book so i can try and make lots of things. Please make more raspberry pi type videos.

[@dionwilliams3934]

Wasn't expecting that song! 😁

[@waddles543]

Did this on a rasberry pi 1. All the same techniques and steps. But all i get as a signal is a faint whine. ??? comments, suggestions?

[@carlos_mann]

How can i get a larger range ? Maybe like 50 mile radius

[@dynamodrone8061]

could you use a better antenna for a longer range

[@JustWickedSwede]

Dynamo Drone 300/MHz gives you the wavelength. Divide the wavelength in four. you now have the length of your antenna. solder it to the output pin. you can also attach the same length to the ground pin to act as "counter weight" or the other half of your half-wave dipole antenna.

[@MightyOnion]

Quick question... how would i go about making it transmit WAV files from a particular folder? for example instead of the star_wars.wav, i would like it to play multiple wav files within a given folder. Thanks in advance!

[@lolmom5004]

i audibly gasped when he opened that drawer and their were like 5 pi zeros, wtf i want one

[@shijinbabu281]

Where should i place the audio file? Is it in the sd card?

[@kapoioonoma9032]

for this project does it matter if i use rasberry pi zero or rasberry pi zero w ?

[@diegoanzolin]

What model of (receiver) radio are you using? I liked to see how you gave him a charge of energy. Congratulations on the channel.

[@ejonesss]

i think you are ok since fm is only 1 of a very redundant means of emergency broadcasting methods so if you drown out your local radio station no big deal because if there was to be an emergency alert tv, cell phone even police driving up and down the streets and air raid sirens are other methods.

[@siboneyyy]

Is it possible to broadcast on multiple frequencys at once?

[@nehajain2974]

How can play a folder or a playlist ? Kindly guide

[@insertthecoinz]

Could u do live input and can the signal be boosted?

[@cjlowe1650]

Nice, but only playing one song? How do you get it to randomly get a folder of songs and play each one? Use Python to run the command like and insert the song as a parameter or can you do it in the app source code?

[@connorjonesfilmsOH]

how do you get it to play on start up? does it just automatically do that?

[@teadrinkingilluminati9173]

A good thing to do with those helping hands is to put some heatshrink over the teeth so that they dont dig into a pcb or leave marks on your wire etc

[@MrJaz8088]

FM only ? or can it do AM, USB, LSB ??

[@gabor-smith]

is that lead free solder?

[@Mangahome]

how far does the signal actually go and how to expand?

[@MorrWorm8]

Working your butt off. Dang bro. Hope all is well

[@harryt2031]

My gpio pins are prongs and are not holes does this matter?

[@misaalanshori]

What is the highest and lowest frequencies can it transmit?

[@misaalanshori]

Also, can the rpi zero receive radio signal? And use it as an sdr?

[@martindejong3974]

@@misaalanshori in principle Infinite high due to its square wave nature,,and no, its a square wave emitter only, no receiver possible without a real SDR module

[@misaalanshori]

@@martindejong3974 ok

[@liamweitzel3667]

Seytonic, please do a video on how you can SSH into your pi0 with just connecting it to you PC with the USB dongle.

[@Seytonic]

Check my uploads :)

[@andsgiant]

What software are using to scan the frekwensi..?!

[@marijuslapinskas1709]

Hi, how to make rpi transmit music from USB and at startup?

[@lucashipwell8977]

How did you get it to transmit on boot up?

[@keitha4349]

anyway to boost the signal and keep its profile still somewhat small

[@waddles543]

antennas... Yea.

[@waddles543]

Big ass antennas. Or just a really big metal pole. You'll lose quality though so it kind of defeats the purpose

[@shangen2783]

2:45 Why not use git clone?

[@josephlepter541]

How would you make this longer ranged?