keyfob | keyfob rx | Reactive Programming library

by bistromath C++ Version: Current License: GPL-3.0

X-Ray Key Features Code Snippets Community Discussions(3)Vulnerabilities Install Support

kandi X-RAY | keyfob Summary

keyfob is a C++ library typically used in Programming Style, Reactive Programming applications. keyfob has no bugs, it has no vulnerabilities, it has a Strong Copyleft License and it has low support. You can download it from GitHub.

keyfob rx

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Support

keyfob has a low active ecosystem.

It has 21 star(s) with 3 fork(s). There are 2 watchers for this library.

It had no major release in the last 6 months.

keyfob has no issues reported. There are no pull requests.

It has a neutral sentiment in the developer community.

The latest version of keyfob is current.

Quality

keyfob has no bugs reported.

Security

keyfob has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

License

keyfob is licensed under the GPL-3.0 License. This license is Strong Copyleft.

Strong Copyleft licenses enforce sharing, and you can use them when creating open source projects.

Reuse

keyfob releases are not available. You will need to build from source code and install.

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keyfob Key Features

No Key Features are available at this moment for keyfob.

keyfob Examples and Code Snippets

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Community Discussions

Trending Discussions on keyfob

Aggregating subquery keys to build a complex object

How do I read passive NFC/RFID units with PN532?

PHP unserialize variable

QUESTION

Aggregating subquery keys to build a complex object

Asked 2019-Apr-02 at 16:01

I have a table that describes a list of products made for a given order, in this every row on this table has to have a an id of the product and the reason why it was purchased,

I would like to build a json response that amounts to an array of locations the ordered product is for, within that, an array of unique product codes and with that an array of reasons why that unique product was ordered.

I've only been able to get the topmost part of my query defined but the join and sub-select nature of the request is actually getting me in a bit of a fiddle. Is this kind of thing actually possible in plpgsql?

Additionally I'd like to join product_order.reason on product_order_reason.id and retrieve the longform_text inside the table associated with this row but I figure the bigger thing is to get the return at all and that's where i've been left stumped.

...

ANSWER

Answered 2019-Apr-02 at 16:01

Alright I think I have something for you. The idea is to build one of the arrays at a time and carry the necessary remaining info to the outer queries for further array building. You can add your constraints for quote_detail_quote_id , location, and product_id to the innermost query's WHERE clause.

SQLFiddle to show it in action.

This may take some studying:

Source https://stackoverflow.com/questions/55458311

QUESTION

How do I read passive NFC/RFID units with PN532?

Asked 2018-Dec-20 at 01:05

I got the little red "ELECHOUSE V3" kit off of eBay with a white card, and a blue keyfob transponder, and I've written a C program which creates and decodes packets and I can send it commands and it responds with AC packets, and I can read the version and the status. I'm not using any RFID library, I'm just using plain C and making my own simple library because I want to understand it and I want to release a simple single file demonstration for people who really want to understand it rather than just using some arduino lib or whatever. So that's all the questions I'm not asking.

So here's the question I am asking:

What is the exact commands to send to scan for the presence of passive (non powered) transponders? I do not know for sure what kind they are, but they came with the kit and are probably ISO 14443 / 14443A.

Actually, I tried the tags on my Samsung Galaxy S4, and it says they are ISO 14443-3A NXP MIFARE Classic 1K - Not Supported. But it still shows the serial numbers for them.

What are the exact commands to scan for all supported card types?

To send a command I use my function like this: sendcmd("0x4A 0x01 0x00"); (The TFI of 0xD4 is automatically added to the commands, and the preamble/len/lcs/checksums are all calculated and dealt with.)

I do get ACKS back for my commands, but can't figure out which commands to send to scan for cards or read them.

If I can get the PN532 to spit card scan data back at me I should be able to parse it using the PN532 datasheet.

Thank you very much,

Jesse

...

ANSWER

Answered 2017-Apr-24 at 19:15

Ahh OK.. After trying everything that seemed related indicated in the data sheet with no success, I turned ham radio on to 13.56Mhz CW/LSB and there was nothing to be heard.. So just for kicks I tried the RFRegulationTest command, and that unlocked the whole thing! Seems to be a test command which turns on the transmitter and leaves it on till you issue another command... But it initializes something as needed!

So here's the commands it takes to make the NXP NP532 scan for cards: (I'm using RS232 at 115200bps, but should be similar for other interfaces.)

You send to it:

Source https://stackoverflow.com/questions/43563378

QUESTION

PHP unserialize variable

Asked 2018-Nov-08 at 19:22

Good afternoon everyone,

Is any simple way to unserialize that type of data and put everyone into Array()

...

ANSWER

Answered 2018-Nov-08 at 16:09

You can use eval to assign the contents of $variable to another variable as an array, like this:

Source https://stackoverflow.com/questions/53211481

Community Discussions, Code Snippets contain sources that include Stack Exchange Network

Vulnerabilities

No vulnerabilities reported

Install keyfob

You can download it from GitHub.

Support

For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .

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