Ebyte E49-400T30D, Specifications

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Chengdu Ebyte Electronic Technology Co.,Ltd. E49-400T30D Specifications
Copyright ©2012–2019
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Chengdu Ebyte Electronic Technology Co.,Ltd. 5
Dimensions 43*24mm
Antenna interface SMA connector Equivalent impedance is about 50 ohms
Ⅲ Dimensions and Pin Definitions
Pin number Pin name Pin Orientation Pin Usage
1 M0
Input (very weak
pull-up)
Cooperate with M1 to determine the 4 working modes of the module (can not be suspended, if not used, it
can be grounded)
2 M1
Input (very weak
pull-up)
Cooperate with M0 to determine the 4 working modes of the module (can not be suspended, if not used, it
can be grounded)
3 RXD Input
TTL serial port input, connected to the external TXD output pin;
Can be configured as open-drain or pull-up input, see parameter settings for details.
4 TXD Output
TTL serial output, connected to external RXD input pin;
Can be configured as open-drain or push-pull output, see parameter settings for details.
5 AUX Output
It is used to indicate the working status of the module; the user wakes up the external MCU, and outputs a
low level during the power-on self-test initialization; it can be configured as open-drain output or
push-pull output, see parameter settings for details. (can be left floating)