Name: Neoway N21 Series
Brand: Neoway
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N21

Hardware User Guide

3.5 Other Interfaces

3.5.1 WAKEUP

This pin is used to wake up N21 from PSM mode. After N21 enters PSM mode, input high level at

WAKEUP pin for more than 1 second to wake up the module to send data. However, the module will

not register with networks proactively after wake up. Therefore, users need to send a data transmitting

request. For details, see Neoway_N21_AT_Command_Manual.

Figure 3-22 shows the reference design of WAKEUP pin.

Figure 3-22 Reference design of WAKEUP

2 kΩ

WAKEUP

N21

Module

1KΩ

MCU_WAKEUP

VCC_3P3

10KΩ

4.7KΩ

3.5.2 NET_LIGHT

NET_LIGHT outputs a high level of 2.8V and a maximum driving current of 4 mA.

High level is allowed to drive a common LED indicator directly. See Figure 3-23.

Figure 3-23 Driving LED directly

1kΩ

NET_LIGHT

N21

Module

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Neoway N21 Series Specifications

General