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Chengdu Ebyte Electronic Technology Co., Ltd.
Manual
3.Size and pin definition
Pin
Pin item
No
1
VCC
2
GND
3
MISO_TX
4
MOSI_RX
5
SCK_RTSN
6
NSS_CTS
7
GND
8
RX_EN
9
TX_EN
10
GND
11
NRESET
12
BUSY
13
DIO1
14
DIO2
15
DIO3
Copyright ©2012–2021，Chengdu Ebyte Electronic Technology Co.,Ltd.
Pin direction
-
Power supply: 1.8~3.6V (Ceramic filter capacitor is advised to add)
-
Ground, connecting to power supply reference ground
Output
SPI data output pin,can be used as UART transmitting pin
Input
SPI data input pin,can be used as UART receiving pin
Input
SPI clock input pin,can be used as UART request transmitting pin
Module chip selection pin, used to start a SPI communication; and can be used as
Input
UART clearing transmitting pin(refer to SX1280 Datasheet)
-
Ground, connecting to power supply reference ground
Input
LNA controlling pin. Valid under high level
Input
PA controlling pin. Valid under high level
-
Ground, connecting to power supply reference ground
Input
Chip reset initiation input pin, valid under low level, built-in 50k pull-up resistor
Output
Status indication (refer to SX1280 Datasheet)
Input / Output
Configurable IO port（Please find more on SX1280 datasheet）
Input / Output
Configurable IO port（Please find more on SX1280 datasheet）
Input / Output
Configurable IO port（Please find more on SX1280 datasheet）
Pin application
E28-2G4M20S User
5
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