Flight Computer for a TVC Model Rocket 

Personally, I don't want to watch videos which are uploaded just to meet some "upload schedule." I much prefer videos made because the author had something they wanted to share. Thanks for sharing your progress with us.

Fucking awesome

Jacob Thornhill

Leo G

Добрый день. Вы молодец что занимаетесь и работаете в области электроники. Скажите пожалуйста, в какой программе и вы рисовали схему в этом видео?

ok

Leo G

That's him

yeah

mhm

I tinker a bit with Arduino, what about something like Teeny ? Could still use PlatformIO/Arduino IDE and a lot more powerful than the microcontrollers used by the Arduino Nano/Uno/...

No offense but how can you call yourself an engineer and still ask for a step by step guide? He was already kind enough to leave links to tutorials… Go read and watch videos and Figure it out!

@@ROVA00 very thanks ✌ Ten months have passed, and after watching various scenes, I built a prototype and will begin experiments soon. My main problem is the limitations of the TVC, as it only moves in the range of -15. I will try to solve the problem and begin the experiments. Thanks again 👍

Go for it! Let me know how it goes

He's 16 and awesome

I don’t, but I have learned a lot from RU-vid and messing around with microcontrollers. (as someone said I am only 16)

@@jacobthornhill that someone is a fan and follows you on twitter too 😌

@@jacobthornhill wow thats very impressive

@@siddhantrao9587 hello Siddhant, I need to talk with u

it all depends on your mentality. If you keep thinking like that you'll never get anything done in life. Know that it all relies on hardwork, patience and perseverance. You got this bro! Work towards something step by step

It uses a STM32 (F4). It connects to my computer via USB for programming and serial coms.

@@jacobthornhill i should of worded it better. how did you remotely connect the pcb to your terminal

because high acceleration and sock can damage the SD card.

PLA. It’s a good balance of weight, strength and cost, and is very safe to print.

I’m afraid I hardly know how they work myself! I can give an outline on what my code does, but I can’t really go into the maths. The basic idea is to start with an identity quaternion (1+0i+0j+0k) which represents a zeroed orientation. At each timestep you construct a new quaternion from the gyro measurements multiplied by delta time, which represents the change in orientation the rocket has experienced since the previous timestep. You then multiply the first quaternion by this new one, which yields the rockets orientation at this timestep. I then convert back to Euler angles as that is the format most useful. Conversions: en.m.wikipedia.org/wiki/Conversion_between_quaternions_and_Euler_angles Multiplication: stackoverflow.com/questions/19956555/how-to-multiply-two-quaternions Hope this helps!

@@jacobthornhill Thanks for your very detailed answer! This helps me so much.

I do use some python on my laptop for remotely commanding the rocket and processing data, but the code that runs on the rocket is all written in c++.

@@jacobthornhill ahh i gotcha, really cool project. How long did it take you to get the skill necessary to develop this level of coding & software development?

Hello

Don’t worry, I won’t be publishing my code or any serious technical detail on this sort of stuff. Besides, there is quite a bit of TVC model rocketry content similar to this on RU-vid right now.

@@jacobthornhill I know, but during our time and age there is a lot going on with the world. It wouldn't be such a big surprise if people got any crazy ideas from these videos.

Phil’s Lab! He has a great channel on PCB design and some videos on low-level firmware

It can't have a target, so it's legal it might be legal to make one of these systems buyable by anyone tho

probably this is Ender-3...

Thanks! Yes, this is all done on my ender 3 v2.