gioscarab

30 ms·

1. 301.▲
   by gioscarab 11y ago

   Really interesting article thank you!!!!
2. 302.▲
   by gioscarab 11y ago

   I'm not thinking you are picking on me. Thank you for your feedback, I will for sure have to make clear this point to help people to have a clearer vision on how to engineer their networks properly. Working with a home automation appli
3. 303.▲
   by gioscarab 11y ago

   You are right, I exluded from the calculation the padding bits, that in the baud measure is not correct, I will correct the readme as soon as possible. Thank you again
4. 304.▲
   by gioscarab 11y ago

   Yes gound is necessary for every connected device. Actually passive power on the same communication wire as 1-Wire has actually is not part of the functionalities of PJON, could be developed and is something I am considering to add in futur
5. 305.▲
   by gioscarab 11y ago

   Accuracy is the ratio between packets correctly received / packets received with an error expressed in percentage. This error obviously is detected with CRC, data trashed and NAK sent to inform transmitter of uncorrect packet reception
6. 306.▲
   by gioscarab 11y ago

   Hi there, this is really a good suggestion, why don't you open a issue on github related to this? To have it working with mixed 3v3 5v you have to choose main channel voltage and consequently use converter modules. There is not an auto
7. 307.▲
   by gioscarab 11y ago

   I am quite stuck in that, to get acceptable speeds the speed has to be known at compile time and defined with #define I think can work at standard speed on Attiny at 16 mhz.
8. 308.▲
   by gioscarab 11y ago

   I'm sorry I forgot to anwer you your firsts questions: - Accuracy is the ratio between packets correctly received and packets received with an error expressed in percentage. - I tried physically with a 50 meters long copper wire.
9. 309.▲
   by gioscarab 11y ago

   Hi there. PJON has networking capability, and it is designed as it is to be easily compatible with Arduino compatible devices. It contains the vast majority of patterns and implementations you can find in other communications bus system, al
10. 310.▲
    by gioscarab 11y ago

    Hi there, this is a communication bus system, that transfers data between computers. What is interesting is that is completely software (no usage of hardware components of the microcontroller that could make it difficult or complicated to p
11. 311.▲
    by gioscarab 11y ago

    Thank you so much for your feedback. I think the first step on ATtiny compatibility can be ATtiny85 with a decent port on wiring. (I think will work also without external oscillator using only internal PPL clock tuned to 16mhz). I am thinki
12. 312.▲
    by gioscarab 11y ago

    What do you think about it?
13. 313.▲
    Show HN: PJON – Open-source Arduino multimaster communications bus system(github.com)

    38 points by gioscarab 11y ago|29 comments
14. 314.▲
    by gioscarab 11y ago

    Transmitter code: #include <PJON.h> PJON network(A0, 45); void setup() { network.set_acknowledge(true); network.set_collision_avoidance(true); network.set_encryption(false); } void loop() { network.send_short_command(44, &#x2
15. 315.▲
    PJON Arduino communication protocol working example(youtube.com)

    3 points by gioscarab 11y ago|1 comments
16. 316.▲
    by gioscarab 11y ago

    Hi! I have a test sketch, it runs for 10 seconds and a transmitter send a string made by ID + LENGTH + 10byte string + CRC + ACKNOWLEDGE. The transmitter counts every correct and mistaken reception by the receiver: What I mean with practic
17. 317.▲
    by gioscarab 11y ago

    Hi creshal, I started from the RC4 implementation but remains not much of it and also i further fuzz information using a initialization vector after RC4 like procedure. You think is so holed? Considering what u can do with an ATmega 328. (M
18. 318.▲
    by gioscarab 11y ago

    Thank you earlz. Try it if you can and contribute if you want to expand the features contained in PJON. I am really happy to have this type of feedback from the hacker community :) thank u guys/girls really!
19. 319.▲
    by gioscarab 11y ago

    It's absurd to see the level of advance in technology we can use and work with and the level of advance of our houses and transportation systems.
20. 320.▲
    by gioscarab 11y ago

    Hi raphman_2 yes there is not the functionality of 1wire you are speaking about! I never had time to dig further and work on this functionality. In any case would be amazing to add it in PJON. But should be taken into account the duration o
21. 321.▲
    by gioscarab 11y ago

    Its a pleasure!!! Please try it and write me an email if you have some problem gioscarab@gmail.com
22. 322.▲
    by gioscarab 11y ago

    Thank you for your suggestion. Take a look if you can to the crypt() function, I use on top of a modified version of RC4 the use of 1 byte initialization vector to further fuzz information (the iv is trasmitted with the string). I am not so
23. 323.▲
    by gioscarab 11y ago

    Hi there I wrote in years of trial and error PJON library for my home home automation project. It is a multi-master, single wire, addressed and checked communication protocol and is designed to be an alternative to i2c, 1Wire, Serial and th
24. 324.▲
    Show HN: PJON – Communications bus system for Arduino(github.com)

    44 points by gioscarab 11y ago|15 comments
25. 325.▲
    by gioscarab 12y ago

    WTF really!!
26. 326.▲
    New startup selling polar bear fur insulators(arsusystems.com)

    6 points by gioscarab 12y ago|5 comments