Ebyte E32-TTL-1W User Manual

SX1278 Wireless Module E32 Series User Manual
Copyright ©2012–2017, Chengdu Ebyte Electronic Technology Co., Ltd. 11 / 24
3.1.4 E32-TTL-500/ E32-TTL-1W
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 2.8V ~ 5.5V DC
7
GND
Input
Ground
8
Fixing
hole
Fixing hole
9
Fixing
hole
Fixing hole
10
Fixing
hole
Fixing hole
11
Fixing
hole
Fixing hole

Ebyte E32-TTL-1W Specifications

General

Brand	Ebyte
Model	E32-TTL-1W
Category	Wireless modules
Language	English