AnalogRead - readings are erratic

Hi dlloyd,

Thanks for your post. Yeap, that improved things, but I think I just need a higher resolution ADC to get more accurate results. I guess I have to wait for a week while it comes in the mail.

The only other thing I thought about was maybe there was some calculation I could do:

For example:

834 = 500 grams
133 = 0 grams

When I increase the gain the 500 grams goes over the scale:
834 = Unknown weight
526 = 0 grams

Can anyone think of a way to calculate what the weight might be here? That way I could adjust the sensitivity with the previous 500 gram reference.