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Chengdu Ebyte Electronic Technology Co., Ltd
3 Size and pin definition
No.
Name
1
M0
2
M1
3
RXD
4
TXD
5
AUX
6
VCC
Copyright ©2012–2019，Chengdu Ebyte Electronic Technology Co.,Ltd.
Direction
Input
With M1, the four working modes of the module can be determined (it cannot be
（weak pull-up）
suspended, and it can be grounded if it is not used).
Input
With M0, the four working modes of the module can be determined (it cannot be
（weak pull-up）
suspended, and it can be grounded if it is not used).
TTL UART input, connect to external TXD output pins; Can be configured as
Input
drain open circuit or pull up input, see parameter Settings
TTL UART output, connect to external RXD input pin; Can be configured as
Output
drain open circuit or push - pull output, see parameter Settings
Used to indicate the working status of the module; The user wakes up the external
Output
MCU and outputs low level during self-test initialization; Can be configured as
drain open output, or push-pull output, see parameter Settings (can be suspended)
Input
Positive reference of module power supply, voltage range: 3.3V ~ 5.2V DC
E32-433T30D User Manual
Function
5
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