I've learned a lot about RF modulation and encoding while using the flipper and watching this channel. I've also learned a fair amount of C, Python, and Javascript. Thanks.
Thanks for watching! I'm still learning stuff about Sub-GHz & I'm still a little confused why some settings help improve audio and others don't. Every time I think I understand, something new comes up which challenges my current understanding. 🥳
@@MrDerekJamison Pls brother there no good video talking about Flipper Magspoof and how can read and simulation, Can you Pls make video covering everything this part?
I updated github.com/jamisonderek/flipperzero-firmware-walkietalkie/tree/jamisonderek/walkietalkie with the latest firmware updates & confirmed I can still hear walkie-talkies on channel 5. mkdir \flipper cd \flipper git clone --recursive github.com/jamisonderek/flipperzero-firmware-walkietalkie cd flipperzero-firmware-walkietalkie git checkout jamisonderek/walkietalkie git pull fbt COMPACT=1 DEBUG=0 FORCE=1 flash_usb_full
Thanks, I was learning a lot trying to make this video. Hopefully it's mostly correct. Super interesting how 2FSK can pick up that signal and then GFSK can replay it on my radio. OOK (AM) couldn't pick up the signal, I'm not sure if it is because it needs a 4/8dB difference for some amount of time or if there is another reason (or maybe it ends up picking up the carrier within the bandwidth or something)?
It's worse than an SDR, since it only can get one frequency at a time (even if it hops quickly). An SDR can get a range of frequencies, so we would be able to know the amplitude of the FM modulated signal instead of just an ON/OFF bit on the GDO0 pin. You can TX using GFSK, if the other person is using a 433MHz radio instead of a 22-channel Walkie-Talkie. You can only TX a pre-recorded .SUB file; you could have messages saved like "Alice house" and "Bob's house" & reply to someone asking where you are. But for 462MHz it's not licensed to broadcast. Flipper Zero is a fun multi-tool and gives you a peek into various technologies (and works great for some cases - like Princeton signals and Security+2.0 receivers). If you can also afford an SDR, HackRF One, etc. is a great way to learn even more.
It was like $13USD for the two walkie-talkies, and those can both Send and Receive on the frequency. Not the best or cheapest tool for the job. But I thought it was interesting that it would work at all -- I wasn't convinced that without amplitude data you would be able to tell what I was saying. :)
This is amazing i am just wondering how to patch Momentum Firmware with your mentioned patch and setting files >> applications/main/subghz/resources/subghz/assets/setting_user >> lib/subghz/subghz_setting.c
Momentum is actually fairly good and exposes most of the features. I'd say if you want you can update the setting_user directly on the SD card to give you the "TLK1" or one with GFSK modulation. You still may need to bump the frequency to reliably get sounds when you see a transmit. I still don't understand that bug well enough, and it only impacts audio output (not capturing signals) as far as I can tell. If you need help, feel free to reach out to me on Discord on the Momentum discord server. You can take me @CodeAllNight. Server invite is... discord.gg/momentum
Dude ur my teacher,, better yet i learn more from here than i would paying thousands dollars in school...
Thanks. It has been really fun to try to learn and teach various topics around the Flipper Zero.
I've learned a lot about RF modulation and encoding while using the flipper and watching this channel. I've also learned a fair amount of C, Python, and Javascript.
Thanks.
Great to hear! I've learned a lot creating the videos as well.
You are a genius, new awesome video. Thank you ...
Thanks for watching! I'm still learning stuff about Sub-GHz & I'm still a little confused why some settings help improve audio and others don't. Every time I think I understand, something new comes up which challenges my current understanding. 🥳
@@MrDerekJamison Pls brother there no good video talking about Flipper Magspoof and how can read and simulation, Can you Pls make video covering everything this part?
Thanks for the suggestion. I’ll add Magspoof to the list of ideas.
Great in-depth video! 😎🤘🔥
Thanks. Let me know if I got anything wrong.
Thank you Sir 👏
Welcome!! This video was fun to make. I wish the audio from the walkie-talkies was clearer on the Flipper Zero.
Thank you for your work. If its not too much trouble could you please add version of walkie-talkie firmware for 1.0.1 release 🙏
I updated github.com/jamisonderek/flipperzero-firmware-walkietalkie/tree/jamisonderek/walkietalkie with the latest firmware updates & confirmed I can still hear walkie-talkies on channel 5.
mkdir \flipper
cd \flipper
git clone --recursive github.com/jamisonderek/flipperzero-firmware-walkietalkie
cd flipperzero-firmware-walkietalkie
git checkout jamisonderek/walkietalkie
git pull
fbt COMPACT=1 DEBUG=0 FORCE=1 flash_usb_full
Awesome. Always learning.
Thanks, I was learning a lot trying to make this video. Hopefully it's mostly correct. Super interesting how 2FSK can pick up that signal and then GFSK can replay it on my radio. OOK (AM) couldn't pick up the signal, I'm not sure if it is because it needs a 4/8dB difference for some amount of time or if there is another reason (or maybe it ends up picking up the carrier within the bandwidth or something)?
That was awesome ❤❤❤❤
Glad you enjoyed it.
Yes sir I'm here ❤❤
Thanks for watching!
great vid. 🔥
Thanks for watching!
I was looking for this tutorial since I saw it on TH-cam shorts 😅 very good tutorial and I’ll try it soon 🤗 thanks you for your work and tutorials !
Thanks, let me know if it works for you!
First 😅
no tx just a glorified sdr
It's worse than an SDR, since it only can get one frequency at a time (even if it hops quickly). An SDR can get a range of frequencies, so we would be able to know the amplitude of the FM modulated signal instead of just an ON/OFF bit on the GDO0 pin.
You can TX using GFSK, if the other person is using a 433MHz radio instead of a 22-channel Walkie-Talkie. You can only TX a pre-recorded .SUB file; you could have messages saved like "Alice house" and "Bob's house" & reply to someone asking where you are. But for 462MHz it's not licensed to broadcast.
Flipper Zero is a fun multi-tool and gives you a peek into various technologies (and works great for some cases - like Princeton signals and Security+2.0 receivers). If you can also afford an SDR, HackRF One, etc. is a great way to learn even more.
For people who have way too much free time.
It was like $13USD for the two walkie-talkies, and those can both Send and Receive on the frequency. Not the best or cheapest tool for the job. But I thought it was interesting that it would work at all -- I wasn't convinced that without amplitude data you would be able to tell what I was saying. :)
Yeah, this is a cool video. Being original isn't always glamorous. I always appreciate seeing cool features I had no idea about@@MrDerekJamison
This is amazing i am just wondering how to patch Momentum Firmware with your mentioned patch and setting files
>> applications/main/subghz/resources/subghz/assets/setting_user
>> lib/subghz/subghz_setting.c
Momentum is actually fairly good and exposes most of the features. I'd say if you want you can update the setting_user directly on the SD card to give you the "TLK1" or one with GFSK modulation.
You still may need to bump the frequency to reliably get sounds when you see a transmit. I still don't understand that bug well enough, and it only impacts audio output (not capturing signals) as far as I can tell.
If you need help, feel free to reach out to me on Discord on the Momentum discord server. You can take me @CodeAllNight. Server invite is... discord.gg/momentum
8:47 🤣
My reward for those people that watch the full video -- not sure why I changed notes as I "sang" it louder. 🤣😭