Size And Pin Definition - Ebyte E43-900T13S3 User Manual

Chengdu Ebyte Electronic Technology Co., Ltd.

3. Size and pin definition

No. Name
1 GND
2 GND
3 GND
4 GND
5 M0
6 M1
7 RXD
8 TXD
9 AUX
10 VCC
11 GND
12 NC
13 GND
14 NC
15 NC
16 NC
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Direction
Work with M1 & decide the four operating modes.
Input（weak pull-up）
Floating is not allowed, can be ground.
Work with M0 & decide the four operating modes.
Input（weak pull-up）
Floating is not allowed, can be ground.
TTL UART inputs, connects to external TXD output pin. Can be configured
Input
as open-drain or pull-up input. See details in parameters setting.
TTL UART outputs, connects to external RXD input pin. Can be configured
Output
as open-drain or push-pull output. See details in parameters setting.
To indicate module's working status & wakes up the external MCU.
During the procedure of self-check initialization, the pin outputs low
Output
level. Can be configured as open-drain output or push-pull output
(floating is allowed).
Power supply reference: 2.3V~5.5V DC
E43-900T13S3 User manual
Function
Ground wire
Ground wire
Ground wire
Ground wire
Ground wire
Ground wire
7