PI that works 9 months with DD cells

[Esteban]

http://www.thetaeng.com/MetalDetector.htm

[wyndham]

There's scant information or a followup on the features and testin of the MD.
I guess they are just advertising there projects. I couldn't find who has used there board in a final product. ?????
Wyndham

[Max]

http://www.thetaeng.com/MetalDetector.htm

Hmmmmm.... yes... but all that to save some batteries.. ?

Use a well packed, sealed, maintenance free gel-battery and the thing will run for 10 years so!

Or was a general electronic thread ???

Kind regards,
Max