Hi folks. In rebuilding a board (hopefully I can write a driver for its interface), I am replacing the 3467 and 3468 quad transistor array chips. These chips...
dg140@...
Mar 3, 2003 5:06 pm
6164
Hi there, Anyone ever hooked up the PC joystick output to an inductance [ such as a motor coil] rather than the standard resistance that a joystick provides...
Another approach (although not what you had in mind experimentally) would be to set up at least three comparators to sense either voltage or current at chosen...
dg140@...
Mar 4, 2003 4:08 am
6166
Hi Charles, Thanks for the suggestion. The idea sounds good, but i dont know how to implement it with coil inductances. Any ideas on how to implement the...
i want to use parallel port in bidirectional mode after setting my bios to epp1.7 qnd bidirctional mode i togle bit no 5 of controll register but nothing can...
More information required ... From: "aamir_khoja" <aamirkhoja2k@...> To: <interfacing@yahoogroups.com> Sent: Wednesday, March 05, 2003 1:41 PM Subject:...
listgroups@...
Mar 5, 2003 9:51 am
6169
Hi, I'm new to the group and subject matter. I need to interface my PC to a Eurotherm DC drive. There is an RS485 interface and I have a B & B RS232 - 485...
Hi there If the same data is read again, and again - then maybe you are not reading the right address. Or, maybe your signals arent making it to the port, or...
Richard, I don't know anything about this modbus protocol, but, all transfers via the asynchronous port, whether using MSCOMMxx.OCX or by any other means, will...
Incidentally, it's always worth looking at http://www.beyondlogic.org/ In particular, folk who are developing software to drive serial ports, might find the...
How to send and receive data using siemens mobile phone with 35 series ? __________________________________________________ Do you Yahoo!? Yahoo! Tax Center -...
Hi all, i have an application(x) which calls a C function(void func(char*,char*,char*)) The purpose of this C function is to call few third party C/C+...
gvenkat@...
Mar 7, 2003 6:49 am
6175
The idea is if u use a third party library, u will have to include the header file associated with it to let the compiler know about the prototype of the...
Shiva The problem is i donot have the third party header files.(no source files).i will get only the libraries. Then what to do??? regards venkat "Shiva Prasad...
gvenkat@...
Mar 7, 2003 7:16 am
6177
sorry not sure what to do... ... From: gvenkat@... To: interfacing@yahoogroups.com Sent: Friday, March 07, 2003 12:39 PM Subject: Re: [interfacing] A...
Could you please recommend an inexpensive chip to decode quadrature signals from a shaft encoder? Manufacturers that give out free samples would be ones that i...
Hi Rich! If "inexpensive" is more important than "single chip solution," maybe you'd like to build your own. It takes one CMOS chip of quad XNOR gates plus a...
Did you solve the problem yet? I have had problems myself with functions not being defined. So i searched the net for people trying to do what i was doing [in...
Sounds cool Zethy! Was it all XOR? I drew quadrature waveforms on paper, and XOR seems to get me 2x with one XOR. Any ideas on how to get 4x from the two A...
Dear all, I was looking for circuits that read data from 2 shaft encoders and send the data to a PC. When you talked about mouse, you gave me a new idea: Why...
Sciensoria
sensors@...
Mar 8, 2003 11:45 am
6184
Hi all. I am designing heater control system. But i want idea, hint, tip or ckt to detect FAN FAILURE. That is to detect either FAN is running or not. Fan is ...
Laiq Ahmed
laiq491@...
Mar 8, 2003 1:09 pm
6185
There is a board for this in public domain with software, at CNC DRO group. Alex ... From: <interfacing@yahoogroups.com> To: <interfacing@yahoogroups.com> ...
Dear Eric. Thanks for reply. I want to clear that i donot want to measure speed of fan. Just checking that IS FAN ON or not. By the way i am thinking on ...
Laiq Ahmed
laiq491@...
Mar 8, 2003 6:55 pm
6188
Check out on like, i think there is an article about an OBSERVATORY that did just what you are trying to do ... ...
Hi, There are tons of articles on how to "use a 555 timer to detect current" usually to an inductive load like a motor. Use a google web search for "detect...
memory fails sometimes, i can't remember what it's called, but there is a circuit that pulls a relay or something else when a button is pushed, if the button...
awful nice of you to not trim that down, lord knows we modem users really need to kill as much bandwidth as possible on irrelevancies, thanks so much. ... -- ...
Hi Laiq! Since the fan could be stalled and still getting its 220, a functional test might be best: function being that it is moving air. A magnetic reed...
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