MCU & Periphery Circuit function
a. lithium battery charge circuit
b. lithium battery protecter circuit
c. 1 comparator or ADC should be required for battery capacitance detection
d. 2 input GPIOs should be required for charge state monitor
e. 2 output GPIOs should be required for LED Control(2 colers led control)
f. 1 input GPIO should be required for key state detection
g. 1 comparator may be required for signal detection
h. 1 output GPIOs should be required for on/off control
a. lithium battery charge circuit
b. lithium battery protecter circuit
c. 1 comparator or ADC should be required for battery capacitance detection
d. 2 input GPIOs should be required for charge state monitor
e. 2 output GPIOs should be required for LED Control(2 colers led control)
f. 1 input GPIO should be required for key state detection
g. 1 comparator may be required for signal detection
h. 1 output GPIOs should be required for on/off control
battery(1 cell,more than 200mAh)
