Neoway N10 - Power-On;Off Control and Procedure; Figure 3-6 VRTC Reference Design

N10_Hardware_User_Guide
Copyright © Neoway Technology Co., Ltd.
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Figure 3-6 VRTC reference design
Backup
battery
GPRS Module
RTC
Circuit
Capacitor
VRTC
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3.1.4 Power-On/Off Control and Procedure
Prior to turning on the module, power on the host MCU and finish the UART initialization. Otherwise
conflictions may occur during initialization, due to unstable conditions. ON/OFF is a pin triggered by low
level pulse and used to turn on or off the module.
Power-On Procedure
While the module is off, pull the ON/OFF pin to ground for at least 1.2 second and then release, the
module will start.
If the module adopts a fixed baudrate, an unsolicited message (\r\nMODEM:STARTUP\r\n) will be sent to
host through UART port, indicating that the module is initialized and the UART can respond to the AT
commands.