Datasheet
Page 8
Page 9
1. Power supply
You  can  apply  power  supply  to  the  board 
using  MINI-B  USB  cable  provided  with 
the  board.  On-board  voltage  regulators  
provide  the  appropriate  voltage  levels 
to  each  component  of  the  board.  Power 
LED (GREEN) will indicate the presence of 
power supply. 
You can also power the board using Li-Polymer battery, 
via on-board battery connector. On-board battery charger 
circuit  MCP73832  enables  you  to  charge  the  battery 
over  USB connection.  LED diode  (RED) will indicate 
battery charging. Led is o when battery is full. Charging 
current is ~250mA and charging voltage is 4.2V DC. 
Battery power supply
USB power supply
Figure 1-1: Connecting 
USB power supply
Figure 1-2: Connecting Li-Polymer battery










