Pin No.
|
Pin Item |
Pin Direction |
Pin Application |
1 |
VCC |
- |
Power supply, 1.8V ~3.6V (recommend to add external ceramic filter capacitor)
|
2 |
GND |
- |
Ground, connecting to power source reference ground
|
3 |
MISO_TX |
Output |
SPI data output pin,can be used as UART transmitting pin
|
4 |
MOSI_RX |
Input |
SPI data input pin,can be used as UART receiving pin
|
5 |
SCK_RTSN |
Input |
SPI clock input pin,can be used as UART request transmitting pin
|
6 |
NSS_CTS |
Input |
Module chip selection pin, used to start a SPI communication; and can be used as UART
clearing transmitting pin
|
7 |
GND |
- |
Ground, connecting to power source reference ground
|
8 |
RX_EN |
Input |
LNA controlling pin. Valid under high level
|
9 |
TX_EN |
Input |
PA controlling pin. Valid under high level
|
10 |
GND |
- |
Ground, connecting to power source reference ground
|
11 |
NRESET |
Input |
Chip reset initiation input pin, valid under low level, built-in 50k pull-up resistor
|
12 |
BUSY |
Output |
Status indication (refer to SX1280 Datasheet)
|
13 |
DIO1 |
Input/Output |
Configurable general IO interface (refer to SX1280 Datasheet)
|
14 |
DIO2 |
Input/Output |
Configurable general IO interface (refer to SX1280 Datasheet)
|
15 |
DIO3 |
Input/Output |
Configurable general IO interface (refer to SX1280 Datasheet)
|
16 |
GND |
- |
Ground, connecting to power source reference ground
|