The LR1302-PI HAT is a Raspberry Pi expansion board that connects the SX1302-based LR1302 LoRaWAN gateway module to a Raspberry Pi (up to Raspberry Pi 5). It also integrates a GPS module and RTC real-time clock to improve the timing and positioning accuracy of the LR1302 module.
In addition to supporting the mini-PCIe form factor of the LR1302 gateway module, the LR1302 LoRaWAN HAT for RPI automatically configures the standard 52-pin gold finger to the Raspberry Pi GPIO connector with a 40-pin compatible header. This simplifies the development process for users to integrate with Raspberry Pi, making it easier to add LR1302 functionality to Raspberry Pi. In addition, it comes with a cooling fan that can effectively dissipate heat for the Raspberry Pi and improve the performance of the Raspberry Pi.
By using the LR1302 LoRaWAN HAT with the LR1302 Gateway Module and a Raspberry Pi, users can build a complete and compact LoRaWAN wireless communication gateway.
It provides reliable communication solutions for smart agriculture, smart cities, and other IoT scenarios.
Feature
Compatibility: Standard Pi Hat shape, specially designed for Raspberry Pi, compatible with up to Raspberry Pi 5;
GPS module& RTC: Integrated GPS module and RTC, providing location information acquisition, positioning, and RTC real-time clock functions;
Simplified integration: Supports converting the standard 52-pin gold finger configuration to match the Raspberry Pi GPIO connector with a 40-pin compatible connector, simplifying the integration process on the Raspberry Pi;
Built-in fan: Built-in cooling fan module, which can effectively dissipate heat for the Raspberry Pi;
Compact design: The compact size allows the LR1302 LoRaWAN HAT for RPI to be easily integrated into the Raspberry Pi, saving space.
Specification
Power Interface: 40 Pin Header or USB
Clock: with the logical master clock and real-time clock functions
Fan: Built-in（DC 5V）
Raspberry Pi 40-Pin Headers: Support Raspberry Pi 5/Support Raspberry Pi 4 B / Support Raspberry Pi 3 A+/B/B+ / Support Raspberry Pi 2 B / Support Raspberry Pi A+/B+
PCIe Header: 52 Pin Mini-PCIe Header
GNSS: Suport GPS L1, GLONASS L1, BeiDou B1
Indicator light: PWR: GreenTXD: GreenRXD: BlueGPS: Green
Battery: CR1220
Operating Voltage: 5V
Dimensions: 65X57.2mm
Weight: 28.8g
Interface
| No |
Raspberry Pi GPIO |
LR1302 Pi Hat Pin Nane |
IO Type |
function |
| 1 |
3V3 power |
NC |
|
|
| 2 |
5V power |
5V |
Power |
|
| 3 |
GPIO 2(SDA) |
I2C_SDA |
DIO |
I2C Data for Temperature Sensor 8
Authentication chip |
| 4 |
5V power |
5V |
Power |
|
| 5 |
GPIO 3(SCL) |
I2C_SCL |
DI |
I2C Clock for Tenperature Sensor
Authentication chip |
| 6 |
Ground |
GND |
Ground |
|
| 7 |
GPIO 4(GPCLKO) |
NC |
|
|
| 8 |
GPIO 14(TXD) |
GPS RXD |
DI |
GPS UART RXD |
| 9 |
Ground |
GND |
Ground |
|
| 10 |
GOIO 15(RXD) |
GPS TXD |
DO |
GPS UART_TXD |
| 11 |
GPIO 17 |
RESET |
DI |
Reset Pin
Active high, when SPI version
Active Low, when the USB version |
| 12 |
GPIO 18(PCM CLK) |
SX1262_BUSY |
DO |
SX1262 BUSY Pin |
| 13 |
GPIO 27 |
NC |
|
|
| 14 |
Ground |
GND |
Ground |
|
| 15 |
GPIO 22 |
NC |
|
|
| 16 |
GPIO 23 |
SX1262_IO1 |
DIO |
SX1262 DIO1 Pin |
| 17 |
3V3 power |
NC |
|
|
| 18 |
GPIO 24 |
SX1262_I02 |
DIO |
SX1262 DI02 Pin |
| 19 |
GPIO 10(JOSD) |
SPI MOSI |
DI |
SPI]0SI |
| 20 |
Ground |
GND |
Ground |
|
| 21 |
GPIO 9(MIS0) |
SPI MISO |
D0 |
SPI MIS0 |
| 22 |
GPIO 25 |
GPS_RST |
DI |
Active high at least 10ms to reset
GPS module |
| 23 |
GPIO 11(SCLK) |
SPI_SCK |
DI |
SPI Clock |
| 24 |
GPI 8(CEO) |
SX1302_CSN |
DI |
SX1302 Chip select |
| 25 |
Ground |
GND |
Ground |
|
| 26 |
GPIO 7CE1) |
NC |
|
|
| 27 |
GPIO OID_SD) |
ID_SD |
DIO |
I2C Data for EEPROM |
| 28 |
GPIO 1(ID SC |
ID_SC |
DI |
I2C Clock for EEPRO |
| 29 |
GPIO 5 |
SX1262_RST |
DI |
SX1262 Reset Pin |
| 30 |
Ground |
GND |
Ground |
|
| 31 |
GPIO 6 |
SX1262_CSN |
DI |
SX1262 Chip select |
| 32 |
GPIO 12(PWK0) |
GPS_WAKE_UP |
DI |
Active high for GPS module enter
St.andby node |
| 33 |
GPIO 13(PWN1) |
NC |
|
|
| 34 |
Ground |
GND |
Ground |
|
| 35 |
GPIO 19(PCM FS) |
NC |
|
|
| 36 |
GPIO 16 |
NC |
|
|
| 37 |
GPIO 26 |
NC |
|
|
| 38 |
GPO 20(PCM DIN) |
NC |
|
|
| 39 |
Ground |
GND |
Ground |
|
| 40 |
GPIO 21(PCN_DOU |
NC |
|
|
Package Include
1x LR1302 LoRaWAN Hat for RPI
1x GPS+BD Dual-mode Antenna
1x Antenna (868MHz/915MHz)
1x IPEX Cable
1x Screw Pack
Useful Link:
User Manual
Schematic Diagram
