SX127X RF Module
User Manual of E19 Series Modules
Copyright ©2012–2018，Chengdu Ebyte Electronic Technology Co.,Ltd
7
2.2. E19 (433M30S)/ E19 (868M30S)/ E19 (915M30S)
2.2.1 Dimensions
2.2.2 Pin definition
Pin No.
Name
Direction
Usage
1
GND
Ground electrode, connected to the power reference ground.
2
DIO5
Input/Output
Configurable IO port（Please find more on SX1276 datasheet）.
3
DIO4
Input/Output
Configurable IO port（Please find more on SX1276 datasheet）
4
DIO3
Input/Output
Configurable IO port（Please find more on SX1276 datasheet）
5
DIO2
Input/Output
Configurable IO port（Please find more on SX1276 datasheet）
6
DIO1
Input/Output
Configurable IO port（Please find more on SX1276 datasheet）
7
DIO0
Input/Output
Configurable IO port（Please find more on SX1276 datasheet）
8
RST
Input
Reset
9
NC
Not connect
10
GND
Configurable IO port（Please find more on SX1276 datasheet）
11
VCC
Power supply: 4.75~5.5V (Ceramic filter capacitor is advised to add)
12
SCK
Input
SPI clock
13
MISO
Output
Master output slave input
14
MOSI
Input
Master input slave output
15
NSS
Input
Chip select
16
TXEN
Input
Radio frequency switch control, make sure the TXEN pin is in
high level, RXEN pin is in low level when transmitting.
17
RXEN
Input
Radio frequency switch control, Make sure the RXEN pin is in
high level ,TXEN pin is in low level when receiving.
18
GND
Ground electrode, connected to the power reference ground
19
ANT
Antenna
20
GND
Ground electrode, connected to the power reference ground
21
GND
Ground electrode, connected to the power reference ground
22
GND
Ground electrode, connected to the power reference ground
★ Please find more on SX127X6 datasheet from SEMTECH ★
