Juli f238cfc9bf
Battery/USB readout and wrap-around menu scrolling ...
BAT_ADC (GPIO4) sits between two 100k resistors on the switched supply
rail, so it reads the cell on battery and ~4.4 V on USB; above 4.25 V is
reported as USB power. On battery the caption shows a glyph + percentage
from a LiPo OCV table; the menu shows voltage and source. Menu lists now
wrap at both ends.
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Juli
f238cfc9bf