Ebyte E70-915NW14S, Руководство пользователя

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Chengdu Ebyte Electronic Technology Co.,Ltd E70-915NW14S User Manual
Copyright ©2012–2019 ，
Chengdu Ebyte Electronic Technology Co.,Ltd
9
2 ANT Antenna (50 ohm impedance)
3 NC Reserved pin Reserved, to be floated
4 NC Reserved pin Reserved, to be floated
5 NC Reserved pin Reserved, to be floated
6 NC Reserved pin Reserved, to be floated
7 NC Reserved pin Reserved, to be floated
8 NC Reserved pin Reserved, to be floated
9 NC Reserved pin Reserved, to be floated
10 NC Reserved pin Reserved, to be floated
11 NC Reserved pin Reserved, to be floated
12 NC Reserved pin Reserved, to be floated
13 NC Reserved pin Reserved, to be floated
14 NC Reserved pin Reserved, to be floated
15 NC Reserved pin Reserved, to be floated
16 GND Ground Ground electrode
17 M0 Input
M1M0 The four working modes of the module are determined by the joint
combination. When in use, a 1K protection resistor shall be connected in series
externally, and a 1M pull-up resistor shall be added (it shall not be suspended,
otherwise, it can be grounded).
18 M1 Input
M1M0 The four working modes of the module are determined by the joint
combination. When in use, a 1K protection resistor shall be connected in series
externally, and a 1M pull-up resistor shall be added (it shall not be suspended,
otherwise, it can be grounded).
19
RXD
Input
TTL UART inputs, connects to external TXD output pin. Can be configured as
open-drain or pull-up input. For details, please refer to parameter setting.
20
TXD
Output
TTL UART outputs, connects to external RXD input pin. Can be configured as
open-drain or push-pull output. For details, please refer to parameter setting.
21 TMSC Input JTAG TMSC
22 TCKC Input JTAG TCKC
23 NC Reserved pin Reserved, to be floated
24 NC Reserved pin Reserved, to be floated
25 AUX Output
To indicate module ’ s working status & wakes up the external MCU. During the
procedure of self-check initialization, the pin outputs low level.
Can be configured as open-drain output or push-pull output, see parameter settings
for details.
A 1K protection resistor needs to be connected in series when using
(it can be suspended)
26 VCC Module power supply positive reference, voltage range: 2.2V ~ 3.8V DC
27 GND Ground Ground electrode
28 ACK Output
The user indicates the data transmission result of the module, which is pulled down
before transmission and pulled up after success. It can be configured as drain open
circuit output or push-pull output. When it is used, a 1K protection resistor should
be connected externally in series (it can be suspended).