I built a smart scale that keeps track of my cat's food intake, compute trends, and text me when has been too long since eating:
Ask HN: Share Your Raspberry Pi Project
111–120 of 160 posts
Re: Ask HN: Share Your Raspberry Pi Project
#112I've got more plans than finished projects. One is an attempt to build a GPIO-connected synthesizer using an old OPL-3 chip and the DAC chips that are designed to be paired with it. The plan would be to add direct hardware output to Adplug and Dosbox.
Another is a quadrupedal robot (more like a puppet to start with; autonomy would come after I've got the gait control code working). Control would be through a bluetooth game controller. I've got a laser-cut acrylic body for the thing and a servo control hat to deal with timing jitter.
Third, I've got a Pi-Zero and a broken PSP. 4.3" Backup camera screens are the right size, shape, and resolution to fit in the PSP case, they can be modified to take 5V instead of 12, and the Pi-Zero has 2 contact pins for the analog video out. I'd need to experiment with audio out; I've got a couple ideas.
Re: Ask HN: Share Your Raspberry Pi Project
#113Kilgore. A robot trout!
https://www.youtube.com/watch?v=7busGsuIOU4
Fish code is python: https://github.com/djmips/trout
Re: Ask HN: Share Your Raspberry Pi Project
#114Me and My brother made a strobe light based on a Nature paper to attempt to treat my Uncle for Alzheimers. See http://www.nature.com/nature/journal/v540/n7632/full/nature2...
Do you have any more information about your project?
Re: Ask HN: Share Your Raspberry Pi Project
#115HomeKit Hub & coupled with an ESP8266(Or even without it) you can make Siri do practically anything.
Re: Ask HN: Share Your Raspberry Pi Project
#116i used raspberry pi 2 in order to build 2d mapping robot(i installed ROS on top of ubuntu on pi2). i also tried to make it autonomus but lack of some hardware such as motor encoder made it quite hard to accomplish so i did not go for it. See snippets of video diary at https://robot.birkankolcu.com
That looks really cool. Have you got any documentation for implementing it?
Re: Ask HN: Share Your Raspberry Pi Project
#117We've built a doorlock system with Raspi, note here: https://code.oursky.com/iot-side-project-chima-open-door/ and code here: https://github.com/oursky/doorlock
Re: Ask HN: Share Your Raspberry Pi Project
#118I made a surveillance camera for my new home, it actually works quite well.
Re: Ask HN: Share Your Raspberry Pi Project
#119Although not strictly a Raspberry Pi project, I have a couple C.H.I.P. boards[1] scattered throughout my apartment collecting temperature and humidity readings (using a HIH8120 sensor[2]) and feeding it to my Raspberry Pi which runs InfluxDB and Chronograf[3] to store and display a simple dashboard. The end result looks like this: http://i.imgur.com/cIrhSUq.png [1]: https://getchip.com/ [2]: https://sensing.honeywell…
I'm planning on doing pretty much the same thing. A couple of questions: 1. Why not just run InfluxDB and Chronograf on one of the CHIPs? 2. How are you sending data to the Pi?
> Why not just run InfluxDB and Chronograf on one of the CHIPs?
I started off with a single C.H.I.P. and ran everything on it but then when I added a second C.H.I.P. I wanted to have all the data in a central location. I also found Chronograf lag a lot when trying to browse more than a couple day's worth of data. The Raspberry Pi has much faster storage and CPU.
> How are you sending data to the Pi?
The C.H.I.P. has a Python script that runs on a cron that calls a C program to read the sensor and then sends it to the Pi using InfluxDB's HTTP API.
Re: Ask HN: Share Your Raspberry Pi Project
#120http://joustmania.com
Open source 16 player version of JS Joust, all running on a pi, very easy setup, and tons of features and game modes