Note for Reviewers

BOM submitted and the YouTube demo link works. There's no issue with it.

Please don't hang up on me the fourth time now. There's nothing else left that's not present in the GitHub or the YouTube demo link.

README.md Update

Updated the readme to follow the conventions of English and fixed some English mistakes in the legal part of the readme.

Sorry for the mistakes didn't notice it the first time

GitHub Changes

Readme Updated as requested by the reviewer.

Added images, and removed the use of AI and revamped the entire README file. Also arranged the file structure of the repository.

Happy ending

I still had the FM kit, and I still got SSTV Transmission done, meaning I sent out Images through air to another device.

My mission kinda succeeded, partially?

I guess we don't really know

But I know one thing, god didn't want me finishing my own goddam FM Transmitter 😭🙏

Sourcing the components

So I started sourcing the components so I can put them on. The most confusing thing were those ferrite core inductors. They were very hard to find. Mine had 7 turns but the manufacturers had 3 turns max.

So I found these on AliExpress

Exactly the same ones I needed!

But god had a different surprise for me 💔🥀
I started saving up so I can buy those components. After a week I logged back in to check my cart and everything was 5x more expensive.

Turns out my country out on a rule that we can now only chose the expensive shipping options like DHL, FedEx etc.

Mayen $100 on a $15 cart? 😭

I quit building my custom PCBs. Instead I published it on OCBway community so others can build Thier own transmitters.

Received the PCBs

Less goo war ended and after a week I received the packages.
I also had a few credits so I bought some nice PCBWay rulers with it :]

They turned out to be so good, I haven't seen PCBs of such high quality before. It was my first time getting my own PCBs. Money well spent

Shipment delayed

My package got delayed because my country got attacked by another nation 😭🙏

I js want my PCBs gang 💔🥀

I hope I receive them and they don't get lost during shipment..

Placed order for the PCB on PCBWay

So I placed the order on PCBWay as it was the cheapest for me and also I had $2 worth of credits on it, still shipping included doubled the price of the PCBs for me

DRC and Auto routing

So after I was done with the PCB I ran autoroute to automatically do all the Routing. I love this feature.

So after fixing a few DRC errors I put on some decals and exported the file as Gerber.

Designing the PCB

So after I was done designing the schematic, I moved onto building the PCB. Idk where the manufacturer sources Thier components but they were nearly non existent on the market 😭🙏💔🥀

It was my first time using EasyEDA, so it took time to create it too

But ofc,.I'm the sigma of them all

No one will understand my suffering of individually editing the footprint for the audio jack to match the exact dimensions of the one I had.

Reverse engineering the PCB

So ofc as I'm a sigma I wanted to keep suffering and decided to reverse engineer the FM Transmitter.

After intense labor and being my first time designing a circuit on a CAD, I ofc had some problems, the official FM Kit manufacturer called the Transistors a Triode, which is a complete different thing and had me tweaking out. But I figured it out and reverse searched the components and Thier data sheets.

Found another way..

So after getting ragebaited by my own skill issue, I decided that I am a sigma and I won't give up :D

I thought of a pretty genius way of transmission - Frequency Modulation! Omg I'm so sigma

I found one of those cheap kits online, like this one

I bought it and after soldering away my life on it, I managed to get it up running and transmitted my own SSTV signal and it worked!

Found a way

So after researching I found out that modern SSTV TX is mostly done through those baofeng radios, which were too expensive for me, so I just went on and nearly gave up on the project.

NRF24L01 Transceiver testing

I was testing nrf24l01 link, and both of the NRF got fried I messed up the wiring 😭🙏
My brain sometimes stops working or sm shi

Most of the time took with research, trouble shooting and iterating

So after frying both of my NRF modules, I went on researching other methods for the sstv transmission

Testing and researching different SSTV Transmission ways

So I switched to a direct ESP to ESP WiFi audio system for SSTV Transmission through a webpage were we uploaded an image an fit would convert it and send it over.

Research and testing

I researched a lil bit and found out that if you use a long enough wire and output a signal through DAC, you can get a pretty weak FM signal.

Ofc the signal was too weak to even get detected.

I saw the video by great Scott testing it after the fail, which showed that the signal was too weak to capture anything meaningful.