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Re: proximity card reader project
There is a lot of info on the WEB. Visit NXP Semiconductors or search for other card manafacturers. look for application.
tek 2247a
Sorry, but I´m still looking for it, anyway throught edonkey the 2245 service manual is available. My 2247 has problems in the power supply so I downloaded this manual believing it could helpme.
If U succeed in the serch pls let me know.
Best regards.
I used it and works OK. SIMCOM brings it to make test but should work with your module.
Best regards
Added after 16 minutes:
I WAS TRYING TO DOWNLOAD A FILE THAT I´VE DOWNLOADED FROM EDABOARD.
GO TO THE FOLLOWING LING AND DOWNLOAD THE FILE SERVER.ZIP
First some questions.
Do U have a server que you can see what U send ? If no, pls, let me know and I can send u an application to run on a pc.
Once your server lisnten to the port you specify, u can use an AT command by which U specify the number of bytes you are going to send. Then you type...
opening gprs
I´m attaching a zip files with app notes that will help U. Hope you be able to read spanish.
If any doubt arrise, let me know and will try to assist U.
I see. Well, if after initializing the sensor as per the installation instructions the sensor continues detecting the cat, try to mask some detection zones in the lens.
PETs are a problem and there are sensors which analyze how they move for differentiating from humans. Although U mask the...
Could U tell us what alarm panel are U using. Some panel allows to create a time window in such a way that the sensor must triger the zone more than one time into the time-window to recognize it as an alarm.
Also, another feature is to use cross-zoning. This feature allows to generate an alarm...
Re: Wiegand Protocol
Regarding you ckt, use base resistor 2k2 to 2k7 and collector resistor 100 to 220 ohms. This shoul work.
Regarding WIEGAND, it uses to data output lines, one outputs a pulse when bit=1 and the other when data bit is 0. ( never both lines get active at the same time )
You...
dc motion sensor cats
Well, as per the sensor installation guide:
http://www.boschsecurity.com.mx/_archivos_productos_sitios_la/documentos/intrusion/EN/ds940_install_0109_en.pdf
And considering U have not purchase the correct sensor, U can try 2 things .
1) Have U powered up the sensor and...
Most new SMPS do not include an auto voltage detector. Universal input SMPS are designed for input voltage from say 85 Vac to 240 Vac. The control circuit then varies the on - off time in accordance with the input voltage, regulating the output voltage.
Anyway, there are comercially available...
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