Hello. I'm looking for the option to minimise the current. I have a picaxe 08M2 which drives a piezo by TUNE with a pot (volume) from C.2 (also a led). The supply is 9v (by 7805 - 5v). The program is a TUNE (every 20minutes) and I finish by END after 3 hours. The cell drops to 6v after 2 days I checked and only the piezo in PAUSE (20 minutes between TUNE) draws the current. For the 08M2 is there any solution to have no current in PAUSE or after the END. Thank you