Epe pic magnetometer

[SimonS]

OK no problem. Send me only sensors. Address will be send under PM

[amitech1982]

OK no problem. Send me only sensors. Address will be send under PM

Ok. I will send you the two sensors during this week. Thank you.

[amitech1982]

I'm going today to a technician who repairs the video camera, he has an oscilloscope. I then test one of these two sensors ... and the surprising thing that he has output a signal very stable and strictly square! it's really confusing !! So where's the problem ! I tested another project with arduino that uses the same sensors (mag-shield) and also the reading on the LCD is unsatble (still unstable reading from 1hz to 100hz). Where is the problem ?!
The common thing between all these experiences is the power ... still same source of 5v ... I will then look at the power supply of 5v.

[amitech1982]

I have a note that I haven't mentioned before ... When I connect a single sensor, whether it is up or down, the lcd displays the same reading for T and B which is supposed to display a single reading next to T or B and the other must be 0

[waltr]

Where is the problem ?!
The common thing between all these experiences is the power ... still same source of 5v ... I will then look at the power supply of 5v.

What power supply are you using??

For very sensitive circuits I always use a current limited Battery that is isolated completely from the AC Mains.

[SimonS]

Hmmm that is very strange.
And yes first of all is power supply. But if you use LM78l05 this must be OK. You can use single LM78l05 for sensor and other for digital. Also mag-shield is made like this. So I really don't have idea. If I have board in my lab it is simple to find out.

[amitech1982]

But can be a variation of 10 Hz is quite normal, compared to 50000Hz! no ?! even we can not notice this variation on an oscilloscope that displays one or two periods.

[ramin]

hi

dear friends

In Iran, I do not have access to the FGM sensor

Can anyone help me make something like that?

regards

[SimonS]

at www.fgsensors.com
Send also to Iran

[amitech1982]

Hello Mr. Simons. It's been a long time, and I've tried a lot this long to find out the cause of the problem. But I didn't succeed, The reading is always changing. Can I send you please the sensors and the electronic card to find out the cause of the problem? Thank you.

[SimonS]

Hello Mr. Simons. It's been a long time, and I've tried a lot this long to find out the cause of the problem. But I didn't succeed, The reading is always changing. Can I send you please the sensors and the electronic card to find out the cause of the problem? Thank you.

Sure no problem. Do you have my address?

[amitech1982]

Sure no problem. Do you have my address?

Thank you very much... Yes, you sent me the address previously.

[Omerta 1312]

Good evening everyone, I made the EPE magnetometer but when I pass the hex file to pic16f877-20 then on my screen it shows a bar only on top with some lines. Why does not the file pass? If you have made it let me help, thank you

[SimonS]

This can be:
- PIC didn't programmed or without power supply or defect PIC
- missing/wrong wires from PIC to LCD
- defect LCD

[Omerta 1312]

Thank you, okay, I made it. Now I have another problem, he has been writing "CLEARING EEPROM" for ten minutes and below he writes numbers with "OF CHIP 1 to 7" and continues. Now what should I do?