Search found 28 matches

by suniljha
Tue Oct 19, 2004 6:59 am
Forum: General Discussion
Topic: Nokia F-Bus SMS Protocol Help
Replies: 0
Views: 627

Nokia F-Bus SMS Protocol Help

Hi! Anybody worked with Nokia F-Bus for communicating with mobile phone? I found two quite useful links on the web: http://www.embedtronics.com/nokia/fbus.html http://www.gadgets.demon.co.uk/nokia61xx/protocol.html <p>I am able to communicate with my Nokia3310 phone using a serial cable (purchased) ...
by suniljha
Thu Jun 10, 2004 6:40 pm
Forum: General Discussion
Topic: Wireless communication underwater
Replies: 4
Views: 852

Wireless communication underwater

Hi! I want to know that whether BiM2 RF Transceiver modules will work under water wireless communications or not? If yes than what would be there range as compared to air communication. If not then what would be the best alternative to control under water equipment from the surface?<p>Waiting for ex...
by suniljha
Sun Jun 06, 2004 7:31 pm
Forum: General Discussion
Topic: Embedded Email Client
Replies: 4
Views: 965

Re: Embedded Email Client

Hi!
Its very difficult for me to get this book in India. Even if I get it its too costly. Another book TCP/IP Lean is also good but the problem is of getting it. Therefore I am looking for some tutorial on net which help me in implementing my design.<p>Thanks,
Sunil
by suniljha
Sat Jun 05, 2004 7:51 am
Forum: General Discussion
Topic: Embedded Email Client
Replies: 4
Views: 965

Re: Embedded Email Client

Hi Ben!
I am already member of avrfreaks.org and a regular visitor of the site. Till now I haven't find such link or description. If you have seen anyone then please let me know.<p>Thanks,
Sunil
by suniljha
Sat Jun 05, 2004 5:22 am
Forum: General Discussion
Topic: Embedded Email Client
Replies: 4
Views: 965

Embedded Email Client

Hi! I want to develop a device to receive emails in an embedded device using microcontroller and Ethernet interface card. I have TCP/IP stack for the controller but don't know how to write POP3/IMAP code using TCP/IP functions. I will be very much thankful if anyone can help me by suggesting some go...
by suniljha
Thu Jun 03, 2004 6:40 pm
Forum: General Discussion
Topic: Transmitter range from output power
Replies: 5
Views: 995

Re: Transmitter range from output power

Thanks a lot for all your responses and posting details again.<p>Sunil
by suniljha
Sun May 30, 2004 8:50 pm
Forum: General Discussion
Topic: Transmitter range from output power
Replies: 5
Views: 995

Transmitter range from output power

Few weeks before I have posted my query for calculating transmitter range in distance from output power in dbm. I received reply with a very good calculation for it. I need it now but the post is not there. Can anyone help me in finding older postings or please post the reply again.<p>Looking for ur...
by suniljha
Sun May 30, 2004 8:39 pm
Forum: General Discussion
Topic: on semiconductor - trying to charge shipping on samples
Replies: 8
Views: 1354

Re: on semiconductor - trying to charge shipping on samples

Yes! its true they start charging Shipping and handling charges on samples. And this is from last 3-4 months. The charge varies with country. I am from India and they are charging $20 even if you order 1 part.<p>Bye!
Sunil
by suniljha
Tue Apr 20, 2004 10:06 am
Forum: General Discussion
Topic: Dallas iButton Help
Replies: 4
Views: 840

Dallas iButton Help

Hi! I have research and developed a security system based on Dallas ID only iButton DS1991. I have interfaced iButton with 1-wire software implementation on Motorola Microcontroller. The system reads 64-bit ROM ID from the iButton and validates the identity of person and activates the alarm system i...
by suniljha
Fri Apr 02, 2004 7:12 pm
Forum: General Discussion
Topic: Transmitter Power in dBm
Replies: 9
Views: 1527

Transmitter Power in dBm

Hi!
I want to know the power of a RF transmitter specified as 14 dBm in terms of approx. communication distance in meters. Any idea??<p>Sunil
by suniljha
Wed Mar 24, 2004 7:30 pm
Forum: General Discussion
Topic: Varying AC frequency
Replies: 11
Views: 2274

Re: Varying AC frequency

Thanks Chris, In INDIA we use 220-250V 50Hz AC. In fact what you have mentioned, I am also looking on the same line but I am not much aware about functioning of UPS or Power Inverters. Because of this I have recently posted new thread seeking help and info on working of these UPS and inverter stuffs...
by suniljha
Wed Mar 24, 2004 7:24 pm
Forum: General Discussion
Topic: How a Power inverter works?
Replies: 9
Views: 1461

How a Power inverter works?

I am curious to know how a sinewave DC (12V) to AC (250V)power inverter works? I will be very much thankful if anyone can suggest some good source of info on net or can expalin in brief.
Thanks,
Sunil
by suniljha
Wed Mar 24, 2004 6:52 pm
Forum: General Discussion
Topic: Varying AC frequency
Replies: 11
Views: 2274

Re: Varying AC frequency

Thanks all for your kind suggestions. I am really very sorry for mistakenly typing 5Hz to 50 kHz, in fact Chris Smith is right. I mean 5 Hz to 50 Hz. Now please suggest is there any solution for getting it. I want to convert an input 250V 50A (Max) 50 Hz AC to 250V 50A AC at desired frequency in ran...
by suniljha
Wed Mar 24, 2004 9:38 am
Forum: General Discussion
Topic: Varying AC frequency
Replies: 11
Views: 2274

Re: Varying AC frequency

Hi Dale!
Frequency anything from 5Hz to 50kHz.
Current ~ 50 Amp<p>Sunil
by suniljha
Tue Mar 23, 2004 7:02 pm
Forum: General Discussion
Topic: Varying AC frequency
Replies: 11
Views: 2274

Varying AC frequency

Hi!
I want some hint or idea regarding how to vary frequency of AC 250V 50 Hz input. I want to generate 250V AC with variable output frequency. I need some solid state solution. Please help me...