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I m using pic microcontroller. i want to generate pwm on all pins using software technic

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Go lurk on and then ask your question.

Posted on Dec 06, 2008


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SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017


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I need its datasheet to connect it to microcontroller and give pwm pulses...can anyone give it or tell me how to connect its four terminals

the four wires will be 0V, 12V (from supply), and a sensor to sense speed (I think this is a voltage o/p proportional to the fan speed). The fourth wire with be the PWM signal to control the fan speed (input to the fan)
see Motherboard CPU 4 Pin Fan Connector Pinout AllPinouts

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Hello Good day to all,i want to know about PIC micro controllers chips like PIC16F84A..?i build a 32 LED knight rider circuit but the problem is not working,is PIC16F84A need to be program first befor

You not only need a PIC programmer. (cheap ones you connect to a home computer like a windows or MAC) you also need the program that goes in. I hope they did deliver the code with the description for the knight rider circuit.

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1 Answer

Finding a Microcontroller for a Technics Tape Deck

I am sure there is one available or suitable sub . I wonder if technics would provide more information if you contacted them or a local electronics store.
A microcontroller may or may not be programmed for a specific purpose so, that also may be an issue if not purchesd froma source used for that device.

There is also a forum called tapeheads:

Technics RS-B49R - Tapeheads Tape, Audio and Music Forums >

I found some links here and even a few sold for parts around 15 bucks:


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Key fob programming

These use KeeLoQ, a system owned by Microchip (makers of our happy line of PIC microcontrollers that we see in the Basic Stamp). KeeLoQ has supposedly been broken, though I haven't personally seen the 'sploit.

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I having pcs motherboard, and also lg driver, but the edi pin and also motherboard edi pin is not suitable . . . what about the solution

If I'm interpreting what you are saying correctly it sounds like you are either trying to use the on board network connector on your mother board to connect to a Audio Dock, or you are using the wrong kind of Audio dock together with your PCI or PCIe E-MU card.
Scenario 1: You'll most likely fry the network connector and the Audio dock or if you are really lucky only one of them. Fingers crossed that it's the cheaper of the two that goes.
Scenario 2: The 1616/1616m will only work with the PCIe version of the controller card from E-MU. The 1820/1820m will only work with the PCI version of the controller board.
Again, if you are lucky your hardware is still functional, but I wouldn't bet on it. Combining the wrong controller with the wrong Dock will most likely smell a bit funny after a while.
The PCI version of the controller board provides power to the whole 1820 and considering how hot the docks can get you can bet that it's quite a lot of current that is provided.
I've tried to figure out the pinout of the EDI-connector and there's a 48VDC going into the dock's onboard PWM-regulator. This is apparently generated from a floppy-power connector providing an additional source of 12VDC to the step-up PWM on the controller board.

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1 Answer

? L5 Landice 8700

Upper display lights up;treadbelt moves;speed will not increase;L5 error.

Check speed sensor alignment.
It should be within 1/16" of the flywheel
and parallel to the flywheel.
Is it out of position?
Unplug 3 wire speed sensor connector from
relay board. Check for pushed pins or loose
Any found?
Unplug 12 wire upper harness connector
from relay board. Check for pushed pins or
loose wires. Specifically look at 8 (White)
and 12 (Green).
Any found?
Is speed control wiring OK?
Purple wire from V+ on pwm board to P3 on relay board.
Orange wire from P1 on pwm board to P1 on relay board.
Brown wire from P2 on pwm board to P2 on relay board.
P3 on pwm board has no connection.
Adjust speed sensor:
1.Use 1/2" wrench and loosen
the two lock nuts securing
sensor to it's bracket.
2. Adjust sensor gap to 1/16".
3. Tighten lock nuts.
Repair or replace speed
sensor / harness assembly.
Part# 71007
Repair or replace upper
harness. Part# 70251
Correct speed
control wiring.
Replace the speed sensor.
Part # 71007

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1 Answer

3 pin fan on heasink to 4 pin fan replacement HELP!!!

4 pins "PWM" fans are specially designed for use with newer motherboards which have 4-pins CPU fan-connector, but the fans are backwards compatible with 3-pins connectors. Just plug the 4-pins fan-header into a 3-pins connector (only 1 way possible) and you're good to go (although you don't get the "PWM" advantages).

You can find more information about the different type of computer fans here:

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3 Answers

Keil compiler

ya keil is a software which used for making hex file for microcontrollers and after that we insert this file to microcontroller by assembler .in keil you hv to use a c similar language.i am expert of embeeded system if u hv any further quiery then u can call me also at 9811613568

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4 Answers

Reqd Software for BF-810

Go to

this page at

and follow the link to download a free copy of the driver for the BafoTech BF-810.

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