alnwlsn 5 hours ago

I think everyone builds one of these little camera cars at least once.

I made one when I got my NTC CHIP[0] in 2015. This was a pretty big deal at the time because Raspberry Pi were still months away from releasing a model with integrated WiFi, and were sold out for quite a while after that. You had to use USB WiFi adapters, and this was always a little flakey.

I attached my camera to a servo so you could tilt it up and down, and it even had a rear facing camera and a magnetic connector, so you could back up and 'dock' with a power supply to recharge. I wanted to make a little claw arm for it, but I never got that far. Good times, makes me want to do another one.

0 - https://en.wikipedia.org/wiki/CHIP_(computer)

  • observer2022 3 hours ago

    An automatic charging dock and a robotic arm could be my next challenge. Really cool build

yrotslluf 3 hours ago

Thinking through the stated use case makes me think a small drone that would undock, scan your house, send you the video, and redock on request would be a useful project/product. Great peace of mind without a full stationary security camera system.

lioeters 9 hours ago

The picture of a little car kit loaded with a breadboard, a mountain of wires, and an added camera in the front was delightful. Now that's the hacker spirit! Thanks for the article, it's a joy to read.

  • observer2022 3 hours ago

    Thank you for the kind words, glad you liked it!

youchen_ 3 days ago

What a wonderful journey back to computing! The Raspberry Pi is such a perfect platform for rekindling that curiosity and hands-on exploration. There's something special about being able to physically tinker with hardware while learning programming. Your excitement really comes through in this post!

GardenLetter27 10 hours ago

I've built something like this using the ESP32-CAM if you want lower power usage. Although the real power usage is in the motors anyway.

It's awesome when it finally works and you can drive it around at a distance though!

  • JKCalhoun 7 hours ago

    Yeah, Arduino, Teensy, ESP32… I prefer these options when you don't in fact need an OS.

    Less OS means less to go wrong. (Just waiting for a Pi to boot vs. a Teensy is reason enough to go with the more stripped-down hardware.)

    • observer2022 3 hours ago

      I agree, it definitely felt a bit spoiled using a full computer for a toy like this, but the main goal for me was learning something new.

      • JKCalhoun an hour ago

        No, that's cool. I didn't mean to come across as critical.

robviren 9 hours ago

Love to see the Pi getting some rather creative use! The most use I got out of one was as a health check endpoint for power in my garage which was holding frozen milk for my newborn, but the circuit kept tripping. Had another server email me if it couldn't reach the Pi for some reason. Just used some real simple Go code. It was not production but it worked. Not everything needs to change the world, maybe just make your day easier.

  • observer2022 3 hours ago

    Exactly. When it helps your daily life, the whole build process is way more exciting. I really liked your project as well.

yumenoandy 7 hours ago

> There may be a better way but it’s a simple way to expose a camera feed without requiring heavy libraries.

is ffmpeg considered heavy? can pipe rpicam into ffmpeg to get an SRT stream

teeray 6 hours ago

> Did we feed the cat?

> Is the cat okay?

The cat is going to love this new toy

  • observer2022 3 hours ago

    it’s a love–hate relationship for now.

lancekey 5 hours ago

great article and I'm a fan of the chat style about section. kudos!

  • observer2022 3 hours ago

    Thank you for your kind words! I don’t come from a particularly special background, so I tried to create something interesting and eye-catching to stand out.

Peteragain 11 hours ago

..and for his next trick, adding a servo is easy. Pigpio provides services underneath the operating system including square wave generators. Power the servo at 7.2 volts and drive the signal directly off a gpio pin at 5 volts!

  • observer2022 3 hours ago

    Great idea, blog post #2 will definitely be about this.

  • sitzkrieg 10 hours ago

    using an entire computer to generate a PWM, hooray!