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  1. MP1

    MOVED: microprocessor-based PROJECT

    This topic has been moved to Microcontroller Projects, Programming. http://www.electronics-lab.com/forum/index.php?topic=3753.0
  2. MP1

    MOVED: 8088 microprocessor

    This topic has been moved to Microcontroller Projects, Programming. http://www.electronics-lab.com/forum/index.php?topic=3696.0
  3. MP1

    Led display Digital Voltmeter question

    Actually, it was your comments in the past about the specs that caused me to get the Maxim sample and compare. I have always used the Intersil chip in the past since as a general rule Maxim is always more expensive. Unfortunately, I have not noticed any differences. The two ICs that I compared...
  4. MP1

    Led display Digital Voltmeter question

    I haven't found that to be true. I have samples from both manufacturers and in my bench tests have found both to be stable. In most cases where someone has complained, I have found it to be a board layout error or design error. Most problems are cured by reading the application notes and data...
  5. MP1

    Protel PCB layout

    http://www.electronics-lab.com/forum/index.php?topic=3689.0 MP
  6. MP1

    Which program saves *.pcb files?

    Many software packages use this extension. I have several in my archives that I made on various programs. I have to try opening them in one program after the other until I find the one which will deliver a board layout. Thanks for the tip Trigger. I will try that the next time I run into this...
  7. MP1

    Dual sided PCB

    As long as the multiple copying did not change the size, you will be ok. Many times, I have found the size to be distorted after copying only one time in a copier. You did not mention the method, but I will assume photo-etch. In this case, match up the two transparencies to be sure they are...
  8. MP1

    Free sample chips!

    TPS, where are the free sample chips from the site you posted? I did not see the link on the page. MP
  9. MP1

    cd4541 rc timing calculation

    I have corrected the topic, but the subject lines in your old posts will reflect the original. MP
  10. MP1

    MOVED: zilog z8

    This topic has been moved to Electronics chit chat. http://www.electronics-lab.com/forum/index.php?topic=3683.0
  11. MP1

    Silly Question

    Birdie, in other words, it is like two of the switches in audioguru's post sitting side by side but only one lever controls both of them. MP
  12. MP1

    Led display Digital Voltmeter question

    Which project did you use? There are two which are similar. There is one from Smart Kits and one from Zeus electronics. If you used the Smart Kit project at: http://www.electronics-lab.com/projects/test/014/index.html  Look at C6 and C7 on the board. There is also a description in the text...
  13. MP1

    Led display Digital Voltmeter question

    Are you using bypass caps on the +5V and -5V connections? There should be a capacitor from these supply lines to common or 0V. Be careful to make sure you use the correct polarity. Compare the project board and the schematic and you will see that the project uses the bypass caps. You should be...
  14. MP1

    Need a Robotics Topic

    Roboticinfo, perhaps it is good that we do not have a robotics topic area if it will only attract such argument. There is no reason to flame here on this website. There are plenty of robotics specific websites out there. This website is dedicated to "electronics", not robotics. Please view the...
  15. MP1

    temperature data logger

    cmer, which temperature sensor will you use? MP
  16. MP1

    lcd screen

    cangaate, You cannot produce an LCD display from house hold parts. LCD displays have quite an architecture on-board. However, if you are wanting to make some type of character display of your own, you could produce similar results by making a LED display. Below, I have posted a drawing of a...
  17. MP1

    tan-timers wanted to buy

    Red has informed me that he bench tests every circuit that he posts on his site. He also states that he does not have a problem with the circuit mentioned in the earlier post. He will answer questions about his circuits if you will contact him. His e-mail is posted on his site. MP
  18. MP1

    Led display Digital Voltmeter question

    You might want to post your schematic and board layout that was used. It has been my experience that when someone makes the same circuit, but only a little different, that means it is a different circuit. If you will post, others might be able to give you some ideas. Normally fluctuating numbers...
  19. MP1

    TIL 306

    Sorry for the confusion. I sometimes assume everyone knows certain things. TI is the abbreviation for Texas Instruments (the manufacturer of the chips). You can access them at http://www.ti.com on the internet. Hope it is helpful. MP
  20. MP1

    TIL 306

    That chip is a combination of a light photodiode and current to frequency converter. Too bad it is not available. It would make things a lot simpler. There are many other applications for your Numeric displays. You might find some application assistance from TI. Sometimes they have application...
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