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Recent content by elvik

can this be done?

Hi, Check Dallas Semiconductors (now part of Maxim). You can reach it on both http://www.maxim-ic.com and http://www.dalsemi.com Best Regards
- elvik
- Post #2
- Jul 22, 2002
- Forum: Circuit design
simple circuit to close switch for x seconds

Hi, I also suppose (just an idea, I can not point you to any website), that you can try to use musical greeting card. Just connect yout sensor output (relay, open collector) to card's switch. Best Regards
- elvik
- Post #4
- Jul 21, 2002
- Forum: Circuit design
ADC0808 problems

Hello, Are you also sure in your programm? May be, the error is in software interpretation you have made in "C"? Since ADC0808 is the successive approximation device, it is critical to maintain the reading algorithm. Are you sure that you perform the reading after EOC goes high? And at...
- elvik
- Post #2
- Jul 10, 2002
- Forum: Circuit design
Amplify signal level from microvolts to 5Volts

Hi Johnxavier, It is a bit unclear, is the detector's uV is the main echo burst or consequent one. If I understand correct, you need ignore some reflections from surrounding obstacles, that may come earlier and be stronger, than the echo you need. In other words, I am not sure that your project...
- elvik
- Post #5
- Jul 8, 2002
- Forum: Circuit design

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