N20 Demo Board User Guide
Copyright © Neoway Technology Co., Ltd
2 Board Interfaces
The following table lists the interfaces of N20 demo board.
Main power supply input, 3.3 V to 4.2 V
Pull it to DC5V side to supply power if a DC adapter is used; pull it to
USB5V side to supply power if the board is supplied power through
USB.
Normal SIM card connector
Used to commission AT commands
Main antenna and GPS antenna
After supplying power to the module, hold this button for 1 second to
power up the module
Used to supply power and transmit data & firmware upgrade
Force the module to enter download mode