Smart LTE Module SeriesSmart EVB G2 User GuideSmart_EVB_G2_User_Guide 20 / 594 Interface ApplicationsThis chapter describes the hardware interfaces of Smart EVB G2, shown as follows: Power supply interfaces Smart TE-A interface LCM interfaces Touch panel interfaces Camera interfaces USB interface Audio interfaces (U)SIM interfaces UART interfaces SD card interface Emergency download interfaceIt also provides information about flashlights, sensors, vibrator, buttons, status indication LEDs and testpoints to help customers use the Smart EVB G2.Power Supply Interfaces (J0201/J0202)4.1.The Smart EVB G2 can be powered by an external 5.0V DC power adapter. Connect the DC poweradapter to the power jack (J0201) and then the step-down converter (DC-to-DC converter), which is usedto regulate the 5.0V DC power supply voltage to 4.2V for powering up the module.The Smart EVB G2 can also be powered by a Li-polymer battery through the battery connector J0202 onthe board.The following figure shows the simplified power supply block diagram of Smart EVB G2.
