What is the lower voltage level where recording will stop? I seem to have some performance trials that are stopping at about 3V (under load), but will record in default mode at this voltage for awhile.
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Hi Matthew, The upper limit is 20V. Andy
Hi, What is the upper voltage limit? I am looking at some battery packs on alibaba that provide 13000 mAh of capacity, but the 10 x 1.5 v cells are wired in a way that the voltage is 7.4 volts...
3V is getting quite low. The processor and microphone will be quite happy at this voltage but it is probably at the limit of what the SD card will accept (nominally it should be 3.3V). With Energizer Ultimate Lithium batteries - http://data.energizer.com/pdfs/l91.pdf - the voltage stays high until the very end of the battery life.
The regulator needs a voltage supply over 3.4V to operate. What is your trial/measurement set up?