Search found 28 matches

by suniljha
Wed Feb 11, 2004 7:25 am
Forum: Computer Programming
Topic: TCP/UDP Packet capturing
Replies: 2
Views: 2753

TCP/UDP Packet capturing

Hi! I am interested in capturing UDP/TCP packets coming from a device server and extracting data from them to finally place them in database (Microsoft Access) for web access. I will be thankful if anyone can help me by suggesting some guidelines to implement it. Which technology would be best? <p>r...
by suniljha
Sun Feb 01, 2004 3:57 am
Forum: General Discussion
Topic: Metal Oxide Varistors
Replies: 3
Views: 1862

Metal Oxide Varistors

Hi all! Can any one help me in understanding what is Metal Oxide Varistor and how it works? I have S14K510 MOV on schematic, what does it mean and for what purpose it should be there on board??<p>I will be very much thankful if anyone can write few lines explaining above.<p>Thanks, Sunil Jha
by suniljha
Thu Jan 22, 2004 7:58 pm
Forum: General Discussion
Topic: Digital control of 230V AC equipment
Replies: 4
Views: 2179

Digital control of 230V AC equipment

Hi! I am looking for a possible and efficient solution for switching any 230V AC appliance using digital TTL/CMOS signal. It seems a very simple question but I have added a word EFFICIENT before solution which makes it little bit difficult for me. The immediate solution came to my mind is use of any...
by suniljha
Tue Jan 20, 2004 7:55 pm
Forum: General Discussion
Topic: Microcontroller Networking
Replies: 1
Views: 1390

Microcontroller Networking

Hi! I am new to networking through microcontroller. I have microcontroller interfaced with small ethernet board (from [url=http://www.embeddedethernet.com).]www.embeddedethernet.com).[/url] I want my microcontroller board to collect some data from attached devices like temp. sensor and then send to ...
by suniljha
Sun Jan 11, 2004 3:48 am
Forum: Robotics
Topic: How PWM works?
Replies: 21
Views: 15602

How PWM works?

Hi! Though I have tested PWM for DC motor speed control and it works fine. Thanks a lot for all help provided by members here. Now I have one curiosity to know scientifically how actually PWM works for an inductive load? Here I am looking for some physics and electrical information which can explain...
by suniljha
Thu Jan 08, 2004 7:12 am
Forum: General Discussion
Topic: Wireless Webcam
Replies: 0
Views: 1365

Wireless Webcam

Hi!
I am interested in making my logitech USB webcam
wireless. Any suggestion or road map to implement it!<p>thanks
Sunil Jha
by suniljha
Tue Jan 06, 2004 8:10 pm
Forum: Robotics
Topic: DC Motor speed control help
Replies: 8
Views: 8635

Re: DC Motor speed control help

Thanks a lot for great help!
Can you please further let me know PWM frequency range suitable for DC motor control. I know this varies from Motor to motor but need some range I should try.<p>Bye!
Sunil
by suniljha
Mon Jan 05, 2004 8:27 pm
Forum: General Discussion
Topic: Microcontroller- Modem communication project
Replies: 8
Views: 3413

Re: Microcontroller- Modem communication project

Hi josmith,
Thanks a lot for link
http://members.vol.at/home.floery/electronix/picnic/<p>It really contains information useful for me.<p>Bye!
Sunil Jha
by suniljha
Sun Jan 04, 2004 7:27 pm
Forum: General Discussion
Topic: Microcontroller- Modem communication project
Replies: 8
Views: 3413

Re: Microcontroller- Modem communication project

Hi Josmith, The link has really very nice implementation of TCP/IP stack in PIC but there is nothing to take help from it. No code No tutorial. I am exactly looking for the sample code for TCP/IP protocol.<p>Hi Miguel, Yes pocket size PDAs can serve my purpose but problem is that how can I get it fr...
by suniljha
Sun Jan 04, 2004 6:25 am
Forum: General Discussion
Topic: Microcontroller- Modem communication project
Replies: 8
Views: 3413

Re: Microcontroller- Modem communication project

Hi!
But I am looking for a small in size, simple and cheap solution that can be developed to embed in my main project module.<p>Sunil
by suniljha
Sat Jan 03, 2004 9:51 pm
Forum: General Discussion
Topic: Microcontroller- Modem communication project
Replies: 8
Views: 3413

Microcontroller- Modem communication project

Hi!
I am looking for an urgent help/tutorial/sample project in which microcontroller transfer data to server using PPP or any other protocol using Dial up networking. No PC at data acquisition side. <p>regards,
Sunil Jha
by suniljha
Fri Jan 02, 2004 8:10 pm
Forum: General Discussion
Topic: Powe Control Help
Replies: 2
Views: 1476

Powe Control Help

Hi! I am looking for your help if you have any idea to solve the problem mentioned below:<p>Problem: I am getting varying analog voltage signal from some source as feedback in terms of some milivolts. I want to use this signal to varying current/voltage in an electromagnet (R=10 ohm) which get suppl...
by suniljha
Fri Jan 02, 2004 7:40 pm
Forum: Robotics
Topic: DC Motor speed control help
Replies: 8
Views: 8635

DC Motor speed control help

Hi! First of all a very Happy New Year to all developers and researchers. I am interested in speed control of 12V DC motor using PWM. Anyone having experience in doing it. I am trying it but getting low torque at low duty cycle. What should be the frequency range for PWM signal? I want to control sp...