Go Down

Topic: Sun sensor. (Read 2 times) previous topic - next topic

USMCinfinity

Before I actually post what I want to post, how do I attach a PDF file?  :-[

Funky Diver

I think you need to upload it to "somewhere" then post the link.

When you do a reply, click the little world symbol on the left above the posting box.

USMCinfinity

Well, thats seems overly complicated it...anyways... I had a sun sensor design using a arduino using a AD820, thing didn't work ..anyone has a sun sensor design with the Arduino that DOES work ?

mowcius

Sun calculations maybe?

http://www.mowcius.co.uk/suntrackercode.html

;)

USMCinfinity

Maybe I was a little broad, its for a ADS for a Balloon Sat.

USMCinfinity


mowcius


USMCinfinity

I'M talking about something like this.

http://i394.photobucket.com/albums/pp22/USMCinfinity/SENSOR.jpg

There are 5 of those PCBs, each one has a photodiode attached to it, and also each PCB is connected to the Arduino. We didn't get it to work, I'm wondering if anyone has done a similar ADS system using a Arduino? I can supply the PDF File which includes all the details if requested.

mowcius

What was it that didn't work?

Mowcius

USMCinfinity

We didn't get the correct voltage readings. Give me a email so I can send you the file so you know in more detail what I'm talking about.

USMCinfinity

Let me know if you got the email? I'm getting mail delivery notifications since your email domain is kinda weird.

mowcius

Umm, nope... Hang on a mo, i'll send you a different one.

Quote
since your email domain is kinda weird.

Umm it's just for my website (one of)

mowcius

I have an idea of how you could do this slightly differently but I don't think it would be a better way to do it.

Did you check the sensor boards individually to check voltages?
Did you check the sensors were working as expected when not on the circuit board?

There are many things you could check to wok out the issue with this and hopefully get it working.

Mowcius

USMCinfinity

Yup to those two questions, what would your idea be ?

mowcius

Quote
Yup to those two questions, what would your idea be ?

So... if they worked fine off the boards, do they work correctly individually on each board?

I am slightly confused as to why you used the AD820 instead of just using 6 analog photodetectors and then comparing the analog voltage from each one.

Go Up