Ebyte E32-400T20S, Руководство пользователя

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Chengdu Ebyte Electronic Technology Co,;Ltd E32-400T20S User Manual
Copyright ©2012–2019
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Chengdu Ebyte Electronic Technology Co,;Ltd 6
9 AUX Input
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 push-pull output (suspending is allowed).
10 VCC -
Power supply
：
2.3~ 5.2V DC
11 GND -
Ground
12 NC - -
13 GND - Ground
14 NC - -
15 NC - -
16 NC - -
17 NC - -
18 NC - -
19 GND -
Ground
20 GND -
Ground
21 ANT -
Antenna
22 GND -
Ground
4. Connect to MCU
No.
Description
（
STM8L MCU
）
1 The UART module is TTL level.
2 For some MCU works at 5VDC, it may need to add 4-10K pull-up resistor for the TXD & AUX pin.