Ebyte E43-900T13S3, Руководство пользователя

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Chengdu Ebyte Electronic Technology Co., Ltd. E43-900T13S3 User manual
Copyright ©2012–2019
，
Chengdu Ebyte Electronic Technology Co., Ltd.
8
17 NC
18 NC
19 GND Ground wire
20 GND Ground wire
21 ANT Antenna
22 GND Ground wire
4. Recommended wiring diagram
No.
Description
（
STM8L MCU
）
1 The UART module is TTL level, please connect with the MCU of TTL level.
2 For some MCU works at 5VDC, it may need to add 4~10K pull-up resistor for the TXD & AUX pin.
5. Functional Details
5.1 Module Reset

When the module is powered, AUX outputs low level immediately, conducts hardware self-check and sets the
operating mode on the basis of the user parameters. During the process, the AUX keeps low level. After the process
completed, the AUX outputs high level and starts to work as per the operating mode combined by M1 and M0.
Therefore, the user needs to wait the AUX rising edge as the starting point of module’s normal work..
5.2 AUX description

AUX Pin can be used as indication for wireless send & receive buffer and self-check.