Ebyte E32 Series User Manual

SX1278 Wireless Module E32 Series User Manual
Copyright ©2012–2017, Chengdu Ebyte Electronic Technology Co., Ltd. 9 / 24
3.1.2 E32-TTL-100S1
Pin No.
Pin item
Pin direction
Application
1
M0
Input
Work with M1 & decide the four operating modes.
（weak pull-up）
Floating is not allowed, can be ground.
2
M1
Input
Work with M0 & decide the four operating modes.
（weak pull-up）
Floating is not allowed, can be ground.
3
RXD
Input
TTL UART inputs, connects to external (MCU, PC) TXD output pin.
Can be configured as open-drain or pull-up input;
4
TXD
Output
TTL UART outputs, connects to external RXD (MCU, PC) input pin.
Can be configured as open-drain or push-pull output
5
AUX
Output
To indicate module’s working status
To wake up the external MCU, during the procedure of self-check initialization, the pin
outputs low level.
Can be configured as open-drain output or push-pull output
Floating is allowed
6
VCC
Input
Voltage reference of module
Power supply 2.3V ~ 5.5V DC
7
GND
Input
Ground
8
GND
Output
Reference places of high frequency signal output
9
ANT
Output
Antenna interface（ high frequency signal output）
10
GND
Input
Ground
11
GND
Input
Ground

Ebyte E32 Series Specifications

General

Brand	Ebyte
Model	E32 Series
Category	Wireless modules
Language	English