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Recent content by microlab

  1. M

    Digital AC Lamp intensity controller

    hi you can use the pwm to vary the intensity of the output. use MOC series couplers to trigger a triac to vary the intensity of the ac lamb you will find many sample circuits just by trying google
  2. M

    analog input multiplexer

    hi all i need to connect 8 analog inputs to a single ADC. the input voltage ranges from 0-2.5V or 0-5V can any one suggest an analog multiplexer for this application? 1x4 or 1x8 or 1x16 will do thanking you regards mL
  3. M

    [SOLVED] LCD on PIC16F887 not working

    hi simulation is good for testing there are many things that need in actual hardware. if u connect a 12v supply in simulation at the supply points, nothing will happen. but in real hardware,the controller will go bad. are you sure that your lcd's are fine?
  4. M

    dmx 512 16 bit data format

    hi all some dmx transmitters use coarse and fine settings which transmits 16 bit data how can we decode that using mcu ? thanks mL
  5. M

    building infra red remote control switch

    hi there are many standards in IR remote. if you are going to use a readymade remote, you need to check which standard is been used by that remote and write receiver code according to. if you want to design a transmitter too, you can use your own standard :) mL
  6. M

    [SOLVED] LCD on PIC16F887 not working

    hi try to increase the delays after sending commands and data . also you need to use some resistor (fixed or variable ) at pin number 3 of the lcd as the proteus will show u the value but in real life u need to adjust the contrast. thank you mL
  7. M

    [PIC] low frequency sinewave

    dear FvM and Horace1 thank you for the suggestions i will try it regards mL
  8. M

    [PIC] low frequency sinewave

    dear horace1 thank you for the reply is it not possible to generate such low frequency sine wave with built in pwm module and look up table? regards mL
  9. M

    [PIC] low frequency sinewave

    hi friends can anyone help me to make a sine wave of 6 Hertz with pwm? i am using 16F886 with 16MHz crystal(any crystal can be used) how to decide the pwm frequency and look up table ? regards mL
  10. M

    replacing VFD with LCD

    hi i will try all that you mentioned i could not find the company web site of ISE. is that company is been overtook by some other companies? ml
  11. M

    difference between led and lcd driver?

    hi just download the datasheet and you will understand the lcd have an inbuilt processor which controls the display here you communicate with this inbuilt processor in led's you are directly on/off the led's with used defined hardware ml
  12. M

    difference between led and lcd driver?

    hi which type of lcd you are referring with? graphical/charector/segment? single led/led array/7 segment? all are different ml
  13. M

    c programming for robot please check

    hi first of all you have to configure the port pins as input and output accordingly you must use a while loop to work the system if you want to run it for ever. this is what i feel went wrong in the code ml
  14. M

    Migration from PIC16F877A to PIC18F4620

    hi can you post the diagrams and codes that you use for both the controllers? it will help to solve easily ml
  15. M

    difference between led and lcd driver?

    hi both are using different technologies that's the difference ml
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