zscilib
PJON
zscilib | PJON | |
---|---|---|
2 | 20 | |
119 | 2,718 | |
1.7% | - | |
5.5 | 0.0 | |
24 days ago | over 1 year ago | |
C | C++ | |
Apache License 2.0 | GNU General Public License v3.0 or later |
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
zscilib
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The Kalman Filter. Helping Chickens Cross the Road
For the past two years, I've been working on and off on a basic, open source scientific computing library in C (basic linear algebra on embedded devices, etc.), and hired a student this summer to work on adding some orientation algorithms.
It's still a work in progress, but we did dig up a couple other filter options to try out beyond the usual Extended Kalman (contributors very much welcome!).
https://github.com/zephyrproject-rtos/zscilib/tree/master/sr...
As another poster mentioned, finding the right parameters for the filters is essential, and involves a fair amount of testing and some trial and error to narrow them down to the right range for your application. There isn't a lot of info out there on that, either.
- Show HN: Zscilib, scientific computing lib for embedded devices
PJON
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Ask HN: What tools/infrastructure do you wish existed?
One idea I've been toying wit (but don't have the skills to implement) is a standard for hardware that's a bit more verbose than things like i2c or serial. I'd like one connector I can plug into a piece of hardware (a sensor, a servo, a keypad, etc) and have it just work. The protocol would have to be a bit more complicated, maybe something like PJON^1, and you'd need to deliver power at a few different voltages.
I've been calling it kitbash in my head, just throw a bunch of components together in various topologies and you're good to go. Considering you can get a very cheap microcontroller for something like 40 cents I can definitely see the appeal of adding a "kitbash port" to various pieces of hardware, even if it means adding a whole new microcontroller.
1: https://github.com/gioblu/PJON
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The operative system for a decarbonised, decentralised, digitised energy system
When the physical layer of devices in the home don’t offer Wireless connectivity, hardware communication modules needs to be adopted to bridge the existing connectivity.
This protocol exists already is called PJON: https://github.com/gioblu/PJON
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IPFS Local Offline Collaboration Sig
Until it ultimately relies on Amazon S3 and a commercial network provider this stuff looks rather useless. I hope IPFS will someday run on top of protocols like PJON ( https://github.com/gioblu/PJON ). Decentralization and democratization of networking will happen from the lower end, when the network infrastructure will be ours, and we will not be forced to pay multiple corporations to temporarily store our data or get it from one end to the other. We should build our own global, private network infrastructure and use it for free without the need of an ID or a contract. On top of this sort of infrastructure something like IPFS may have sense.
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What Happens Inside a 100-Hop IPv6 Wireless Mesh Network?
PJON supports mesh networking too, it is open-source and free to use, check it out: https://github.com/gioblu/PJON
its address space may be beneficial (more flexible, lower overhead) for many use cases.
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Bitcoin Core Lead Maintainer Steps Back, Encourages Decentralization
Bitcoin should run over a network protocol like PJON https://github.com/gioblu/PJON and a private network infrastructure made by people.
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Show HN: PJDL 5.0 an open alternative to 1-wire with a range of 2000m
Protocol specification: https://github.com/gioblu/PJON/blob/13.0/src/strategies/Soft...
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Free-space optical links for space communication networks
Really cool thanks for the link. I have experimented a lot with the OOK modulation and optical communication described in the paper using just visible light LEDs as detectors and small laser diodes. A free-space optical link can be built in minutes, see https://github.com/gioblu/PJON/tree/master/src/strategies/An...
- Have you ever heard about PJON? Seems relevant here
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Build a Two-Way Pager with Lora
It should use PJON for communication: https://github.com/gioblu/PJON
What are some alternatives?
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