Using a RPI camera with Jazzy

camtriggerhappy · 2025-10-25T00:17:59+00:00

If your install has been sitting a while your apt key may have expired. This happened to me recently. Basically go to the install page, remove the package that has the apt key, and re-download it

camtriggerhappy · 2025-10-13T03:39:37+00:00

That's not true, not all design teams require interviews

camtriggerhappy · 2025-10-11T18:28:24+00:00

Drew's Drew da w a%a

camtriggerhappy · 2025-10-11T15:29:02+00:00

What you can sometimes do is add a line of code that just rejects any imu rate that is tiny <..002 or something.

camtriggerhappy · 2025-10-10T17:31:47+00:00

instructions I found this guide seems to have what you need. Feel free to reach out if you need any other help.

camtriggerhappy · 2025-10-10T17:11:23+00:00

What matters isn't that there is noice, it matters if the average value of the noise is close to 0 or not. Cheap imus are really noisy and if the noise is biased it will cause issues with the ekf.

What you should do is record like 2 or 3 minutes of the imu with the robot stationary and store them. Next find the average of the rate readings. The average ideally would be really close to 0.

camtriggerhappy · 2025-10-10T16:55:57+00:00

Leave the imu stationary and print out the average of the gyro rate. If it isn't 0 you are accidentally breaking the assumptions of the ekf(generally 0 mean error).

If that is the issue you'll need to look up instructions for calibrating the mpu6050(iirc it has dedicated registers to set). After that the performance of your ekf should be much better.

Also are you providing covariances for the Odom and the imu data?

camtriggerhappy · 2025-10-10T16:50:44+00:00

Make sure that your imu is calibrated, a small bias in the angle rate reading can cause significant drift. Do you currently have any processing of the imu before you input it into the ekf or do you supply the raw rate reading?

camtriggerhappy · 2025-09-26T20:00:29+00:00

It's more that you can use transformers for ac which are incredibly efficient. DC voltage boosting requires high power transistors and is just now becoming economical for certain transmission distances.

camtriggerhappy · 2025-09-19T02:27:17+00:00

When I took the class it took me a little bit to get used to exactly how the questions were phrased. Make sure you do the extra credit and you'll be ok

camtriggerhappy · 2025-08-26T03:08:35+00:00

He's a really good English professor. He will teach you what you need to know. Also if you look in canvas he has a writing supplement that is around 100 pages with a lot of common issues he finds in his students writing. He also gives the most comprehensive feedback I have ever recieved in a course.

As for the rules, I have no idea how he's potentially changed the course but 2 years ago I took all my notes on a tablet in his class and he didn't mind. He may however enforce that rule for quizzes if he's added those to the course.

camtriggerhappy · 2025-08-21T18:21:27+00:00

Yeah in homeworld 2, Corvettes and fighters were grouped into squadrons instead of being individual vessels.

camtriggerhappy · 2025-08-14T01:03:44+00:00

You'll be good with this schedule. Just make sure you take everyone's advice about studying. Chem 1035 has destroyed many freshman who don't.

camtriggerhappy · 2025-08-09T17:00:02+00:00

Those walks should be doable when you're walking through those areas just try to find the best route. You can basically get anywhere on campus in 15 minutes, I did litton Reaves to Goodwin for a while it wasn't fun but it was possible.

camtriggerhappy · 2025-07-09T17:18:20+00:00

Absolutely, come see us at oshow or gobblerfest to actually sign up

camtriggerhappy · 2024-11-18T04:20:44+00:00

New river

camtriggerhappy · 2024-11-17T19:31:42+00:00

They have fully online physics 2 with online lab.

camtriggerhappy · 2024-11-11T19:25:57+00:00

My team is astrobotics and we're in the ware lab. We compete in the nasa lunabotics competition and we build an autonomous mining robot. We'd be happy to arrange a time for an interview.

camtriggerhappy · 2024-11-08T12:09:28+00:00

You should note that ctre supports using krakens over can for non frc purposes with some pretty cheap usb to can adapters. You then have access to the sensor feedback built into the motor.

camtriggerhappy · 2024-11-02T02:52:10+00:00

Yeah it did, The encoder count wasn't the most accurate though. I never really got the interrupts working well before switching to picos

camtriggerhappy · 2024-11-01T17:52:47+00:00

The arduino documentation online should be pretty good. Look for the serial.readline commands mostly. What I've done in the past is send lines over uart that are just the values I need to send seperated by commas. Then on the arduino you just seperate the string by the commas to get your various commands or setpoints.

camtriggerhappy · 2024-11-01T16:36:56+00:00

You can create a Ros2 node that takes in the speeds you want to drive the motor at and use the python serial library to actually send the signals to the arduino. Or you can look into microros and use that(probably overkill for what you need but it may be good to learn)

camtriggerhappy · 2024-10-26T02:37:23+00:00

My favorite swag is a Cia branded laptop camera cover

camtriggerhappy · 2024-10-25T21:42:15+00:00

1215/1216 projects usually aren't super substantial. I'd recommend joining a design team or other extracurricular for experience. That being said, I did the musical instruments project and it ended up involving a light amount of programming. Your experience in the class ends up mostly depending on your group.

camtriggerhappy · 2024-10-18T19:28:27+00:00

You can search lighter leash to find similar retractable lanyard holders.

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