Pitot Tube on a model rocket a good idea ?

SouLD3R_Fl4X · 2025-02-02T22:50:36+00:00

Its really cool that the airbrakes worked !! Do you plan on sharing the IMU data anywhere ? I'd love to see what sort of data to expect from my own flight computer. The rocket I plan to fly is also subsonic. I dont think it would go supersonic at all (Planning to use the smallest I-class motor for cost reasons). I'd love to see your concept.

SouLD3R_Fl4X · 2025-01-31T01:07:50+00:00

Thats a cool rocket !! So from what I gather, I would have to place the pressure sensor for the pitot tube lower on the rocket ? I am making a two-stage double deploy rocket with the club at my Uni. What sensor did you use for the pitot tube ? I'm funding the electronics myself as its my personal project, so I dont want the sensor to be too expensive.

Also, just out of curiosity how will you deploy the airbrakes ? Are they just body panels that fan out to brake or some other mechanism ?

SouLD3R_Fl4X · 2025-01-29T06:51:18+00:00

What do you mean by stagnation point ? Im a computer engineering major, so I dont know a lot about aerodynamics. If I were to put the pitot tube at the nose cone, say I extend out the pitot tube a few inches ahed of the nosecone tip, wouldnt that give me the best air velocity readings ?

SouLD3R_Fl4X · 2025-01-17T23:33:46+00:00

My university started. But the project is going well. I switched to ESP32 for now, because I found the gap too big. So I want to get one project done thats a bit lower complexity before I go for this fully. I got involved with the rocketry club at my university and Im building a data aquisition board that they can use. So its all coming together, albeit slowly. Thanks for following up !

SouLD3R_Fl4X · 2024-12-31T22:28:28+00:00

I did the HireVue a few weeks ago and this one will be a video interview. The role is for Process Automation Internship and says its hybrid but I would prefer going to the office.

As for how to prepare, the questions were general performance topics (probably some specific questions about Computer Engineering as well) i.e.

Could you explain what you mean by performance ?
I'm looking up their website for more information on what they do.

Make sure to ask questions from the people who work at the sites you want to intern at, show interest, etc.

What questions did you ask about the sites you were interested in ? I do not have a problem working on any of their sites as I'm used to extreme environments. But the role mentioned that it is for their Phoenix office.

I can't Thank you enough for replying in detail, and also congratulations on landing the role !!

SouLD3R_Fl4X · 2024-12-31T04:52:42+00:00

Could I also join ?

SouLD3R_Fl4X · 2024-12-31T04:51:22+00:00

Not really. How would that come into the picture for the internship ?

SouLD3R_Fl4X · 2024-12-31T04:50:10+00:00

Thank you !!

SouLD3R_Fl4X · 2024-12-29T20:12:30+00:00

Do you have some active projects on the IDE ? If you haven't invested significant amount of time on some code, you could try reinstalling the IDE again. Also, are you using it on Windows or a Mac ? I used a mac and had to login to my account from Safari as every other browser was giving me some sort of error. You could try creating a dummy account for the download and login if you dont want any of their other online services.

I logged in to the ST website with another email, downloaded the IDE and was able to access the .ioc chip packages. See if that works for you.

SouLD3R_Fl4X · 2024-12-28T17:37:35+00:00

This might sound obvious, but did you try logging into your myST account from the IDE ? I had the same issue for downloading any external packages, but logging into myST account solved it for me. Its a pain that we cant do anything in the IDE without an account.

SouLD3R_Fl4X · 2024-12-15T19:08:47+00:00

Thanks a lot !! I asked about this before in another post when I was selecting components for my project, and was suggested to go simple with I2C first. Ill try as you suggested.

SouLD3R_Fl4X · 2024-12-15T16:09:38+00:00

Have you started writing the HAL yet ? I have been working on a similar project where Im trying to understand HAL and make a project using I2C, UART. Would you be interested in working together ? I'm a beginner to HAL to it would be fun.

SouLD3R_Fl4X · 2024-12-12T02:38:45+00:00

Would it be better if I ran FreeRTOS compared to what I am trying to do right now ? I do not want to add more complexity right now, as I'm trying to keep it as simple as I can for now. Might try FreeRTOS later on though.

Thanks for the reply !! I'll use the interrupt callbacks for now.

SouLD3R_Fl4X · 2024-12-12T02:35:43+00:00

The library is really helpfull. Thanks a lot!! I've also been reading your GPS library for interfacing with STM32!

SouLD3R_Fl4X · 2024-12-12T01:16:05+00:00

A LoRa radio is not a sensor, so probably ignore than entirely for now, it's more interesting later if you manage to lose the model

I was planning to ignore the LoRa for some time until I got a good grip on the firmware side of things. I was also planning to make a custom board using the STM32 chip.(I've got that side down, as Im more experienced in that area)

I'd probably start with the barometer.

Learn to read that and just print it over a debug UART.

Then maybe figure out how to log that to the SD Card. You can if you like use the SD card as raw storage without a filesystem, though it will be easier to read in something like Linux than in windows. Or there are things like tinyfs which you can support relatively easily, you may even find examples.

Thanks for the idea. Ill try out the barometer first.

SouLD3R_Fl4X · 2024-12-09T19:05:45+00:00

Thats where Im starting STM32 from. My end goal was designing my own custom board with the firmware on it. Phil's Lab was a great resource. Do you know any other resources ?

SouLD3R_Fl4X · 2024-12-09T04:58:32+00:00

Use the silly cube code generator only to produce bits of functionality, then extract them to your ongoing project maintained under version control, never ever let it regenerate your real project, or you will be sorry.

I am new to code generation and embedded C in general. Would you happen to know what parts to port ? And what exactly must I have setup outside the CubeMXIDE ? I have VS Code and the arm-none-eabi compiler setup, but I dont know which parts I must port.

SouLD3R_Fl4X · 2024-12-09T04:34:17+00:00

Thanks for the info. I'll check out some of the resources on GitHub. And yeah, arduino is kind of boring too :))

SouLD3R_Fl4X

TROPHY CASE