LoraWAN网关硬件上需要一个网关模组，比如SX1301、SX1302等，我使用的是SX1302，某鱼入手还是挺便宜的还带树莓派转接板，到手后就直接可以用了，连接图如下：
SPI -- 与SX1302通讯，使用的是SPI3.0；
I2C -- 与温度传感器通讯，使用的是I2C-3；
串口 -- 接收GPS数据，使用的是ttyS8；
还有需要一个GPIO口，接到了板子的83引脚；
修改/boot/uEnv/uEnvLubanCatZW.txt
下面是设备树插件部分的内容，开启了一下相关的硬件：
#network
dtoverlay=/dtb/overlay/rk356x-lubancat-gmac1-disabled-overlay.dtbo
#40pin
dtoverlay=/dtb/overlay/rk356x-lubancat-i2c3-m0-overlay.dtbo
dtoverlay=/dtb/overlay/rk3566-lubancat-0-spi3-m1-gpio-cs-overlay.dtbo
dtoverlay=/dtb/overlay/rk356x-lubancat-spi3-m1-overlay.dtbo
dtoverlay=/dtb/overlay/rk356x-lubancat-uart8-m0-overlay.dtbo
软件上需要用到SX1302的hal库，chirpstack的bridge软件包和chirpstack服务器软件包。
通过以下命令安装mosquitto
通过以下命令安装PostgreSQL配置
安装：
sudo apt install postgresql
配置：
sudo -u postgres psql
create role chirpstack with login password 'chirpstack';
create database chirpstack with owner chirpstack;
\c chirpstack
create extension pg_trgm;
\q
上面的账号密码及数据库名字都可以自定义，在下面配置chirpstack时保持一致就行。
通过以下命令安装redis-server
sudo apt install redis-server
安装emqx
可以选择docker部署或者直接安装emqx服务。
直接安装参考Ubuntu 安装 EMQX 5.0 文档
docker部署参考Docker 部署 EMQX 5.0 文档
可以在github上面下载到：
地址是：https://github.com/Lora-net/sx1302_hal.git
使用的是release版本，V2.1.0
里面需要修改的文件有：
// libloragw/inc/loragw_i2c.h
// 将I2C_DEVICE中的i2c-0改为i2c-3
#define I2C_DEVICE "/dev/i2c-3"
复制tools/reset_lgw.sh到sx1302的根目录
修改如下
SX1302_RESET_PIN=83 #23 # SX1302 reset
SX1302_POWER_EN_PIN=18 # SX1302 power enable
SX1261_RESET_PIN=22 # SX1261 reset (LBT / Spectral Scan)
AD5338R_RESET_PIN=13 # AD5338R reset (full-duplex CN490 reference design)
WAIT_GPIO() {
sleep 0.1
}
init() {
# setup GPIOs
echo "$SX1302_RESET_PIN" > /sys/class/gpio/export; WAIT_GPIO
#echo "$SX1261_RESET_PIN" > /sys/class/gpio/export; WAIT_GPIO
#echo "$SX1302_POWER_EN_PIN" > /sys/class/gpio/export; WAIT_GPIO
#echo "$AD5338R_RESET_PIN" > /sys/class/gpio/export; WAIT_GPIO
# set GPIOs as output
echo "out" > /sys/class/gpio/gpio$SX1302_RESET_PIN/direction; WAIT_GPIO
#echo "out" > /sys/class/gpio/gpio$SX1261_RESET_PIN/direction; WAIT_GPIO
#echo "out" > /sys/class/gpio/gpio$SX1302_POWER_EN_PIN/direction; WAIT_GPIO
#echo "out" > /sys/class/gpio/gpio$AD5338R_RESET_PIN/direction; WAIT_GPIO
}
reset() {
echo "CoreCell reset through GPIO$SX1302_RESET_PIN..."
#echo "SX1261 reset through GPIO$SX1302_RESET_PIN..."
#echo "CoreCell power enable through GPIO$SX1302_POWER_EN_PIN..."
#echo "CoreCell ADC reset through GPIO$AD5338R_RESET_PIN..."
# write output for SX1302 CoreCell power_enable and reset
#echo "1" > /sys/class/gpio/gpio$SX1302_POWER_EN_PIN/value; WAIT_GPIO
echo "1" > /sys/class/gpio/gpio$SX1302_RESET_PIN/value; WAIT_GPIO
echo "0" > /sys/class/gpio/gpio$SX1302_RESET_PIN/value; WAIT_GPIO
#echo "0" > /sys/class/gpio/gpio$SX1261_RESET_PIN/value; WAIT_GPIO
#echo "1" > /sys/class/gpio/gpio$SX1261_RESET_PIN/value; WAIT_GPIO
#echo "0" > /sys/class/gpio/gpio$AD5338R_RESET_PIN/value; WAIT_GPIO
#echo "1" > /sys/class/gpio/gpio$AD5338R_RESET_PIN/value; WAIT_GPIO
}
# 再往下的代码不变
复制packet_forwarder下的global_conf.json.sx1250.CN490到sx1302根目录，然后重命名为global_conf.json。修改为如下：
{
"SX130x_conf": {
"com_type": "SPI",
"com_path": "/dev/spidev3.0",
"lorawan_public": true,
"clksrc": 0,
"antenna_gain": 0, /* antenna gain, in dBi */
"full_duplex": false,
"fine_timestamp": {
"enable": false,
"mode": "all_sf" /* high_capacity or all_sf */
},
"radio_0": {
"enable": true,
"type": "SX1250",
"single_input_mode": true,
"freq": 470600000,
"rssi_offset": -207.0,
"rssi_tcomp": {"coeff_a": 0, "coeff_b": 0, "coeff_c": 20.41, "coeff_d": 2162.56, "coeff_e": 0},
"tx_enable": true,
"tx_freq_min": 500000000,
"tx_freq_max": 510000000,
"tx_gain_lut":[
{"rf_power": -6, "pa_gain": 0, "pwr_idx": 0},
{"rf_power": -3, "pa_gain": 0, "pwr_idx": 1},
{"rf_power": 0, "pa_gain": 0, "pwr_idx": 2},
{"rf_power": 3, "pa_gain": 1, "pwr_idx": 3},
{"rf_power": 6, "pa_gain": 1, "pwr_idx": 4},
{"rf_power": 10, "pa_gain": 1, "pwr_idx": 5},
{"rf_power": 11, "pa_gain": 1, "pwr_idx": 6},
{"rf_power": 12, "pa_gain": 1, "pwr_idx": 7},
{"rf_power": 13, "pa_gain": 1, "pwr_idx": 8},
{"rf_power": 14, "pa_gain": 1, "pwr_idx": 9},
{"rf_power": 16, "pa_gain": 1, "pwr_idx": 10},
{"rf_power": 20, "pa_gain": 1, "pwr_idx": 11},
{"rf_power": 23, "pa_gain": 1, "pwr_idx": 12},
{"rf_power": 25, "pa_gain": 1, "pwr_idx": 13},
{"rf_power": 26, "pa_gain": 1, "pwr_idx": 14},
{"rf_power": 27, "pa_gain": 1, "pwr_idx": 15}
]
},
"radio_1": {
"enable": true,
"type": "SX1250",
"single_input_mode": true,
"freq": 471400000,
"rssi_offset": -207.0,
"rssi_tcomp": {"coeff_a": 0, "coeff_b": 0, "coeff_c": 20.41, "coeff_d": 2162.56, "coeff_e": 0},
"tx_enable": false
},
"chan_multiSF_All": {"spreading_factor_enable": [ 5, 6, 7, 8, 9, 10, 11, 12 ]},
"chan_multiSF_0": {"enable": true, "radio": 0, "if": -300000},
"chan_multiSF_1": {"enable": true, "radio": 0, "if": -100000},
"chan_multiSF_2": {"enable": true, "radio": 0, "if": 100000},
"chan_multiSF_3": {"enable": true, "radio": 0, "if": 300000},
"chan_multiSF_4": {"enable": true, "radio": 1, "if": -300000},
"chan_multiSF_5": {"enable": true, "radio": 1, "if": -100000},
"chan_multiSF_6": {"enable": true, "radio": 1, "if": 100000},
"chan_multiSF_7": {"enable": true, "radio": 1, "if": 300000},
"chan_Lora_std": {"enable": true, "radio": 1, "if": -200000, "bandwidth": 250000, "spread_factor": 7,
"implicit_hdr": false, "implicit_payload_length": 17, "implicit_crc_en": false, "implicit_coderate": 1},
"chan_FSK": {"enable": true, "radio": 1, "if": 300000, "bandwidth": 125000, "datarate": 50000}
},
"gateway_conf": {
"gateway_ID": "AA555A0000000000",
/* change with default server address/ports */
"server_address": "localhost",
"serv_port_up": 1700,
"serv_port_down": 1700,
/* adjust the following parameters for your network */
"keepalive_interval": 10,
"stat_interval": 30,
"push_timeout_ms": 100,
/* forward only valid packets */
"forward_crc_valid": true,
"forward_crc_error": false,
"forward_crc_disabled": false,
/* GPS configuration */
"gps_tty_path": "/dev/ttyS8",
/* GPS reference coordinates */
"ref_latitude": 0.0,
"ref_longitude": 0.0,
"ref_altitude": 0,
/* Beaconing parameters */
"beacon_period": 0,
"beacon_freq_hz": 869525000,
"beacon_datarate": 9,
"beacon_bw_hz": 125000,
"beacon_power": 14,
"beacon_infodesc": 0
},
"debug_conf": {
"ref_payload":[
{"id": "0xCAFE1234"},
{"id": "0xCAFE2345"}
],
"log_file": "loragw_hal.log"
}
}
最后通过下面命令启动：
sudo ./packet_forwarder/lora_pkt_fwd -c global_conf.json
可以去chirpstack官网下载，地址如下：
chirpstack-gateway-bridge下载地址
下载deb安装包进行安装，安装完成后修改配置文件：/etc/chirpstack-gateway-bridge/chirpstack-gateway-bridge.toml，内容如下：
marshaler="json"
主要为了调试的时候可以更直观的看到数据，也可以不改，只要与后面的chirpstack配置对应就行。
通过一下命令启动
sudo systemctl start chirpstack-gateway-bridge
也在chirpstack官网下载，地址如下：
ChirpStack下载地址
复制配置文件，从/etc/chirpstack中的chirpstack.toml和region_cn470_0.toml复制到~/.config/chirpstack（没有目录就创建），修改配置文件：
chirpstack.toml：
#以上内容不变
# Network related configuration.
[network]
# Network identifier (NetID, 3 bytes) encoded as HEX (e.g. 010203).
net_id="000000"
# Enabled regions.
#
# Multiple regions can be enabled simultaneously. Each region must match
# the 'name' parameter of the region configuration in '[[regions]]'.
enabled_regions=[
"cn470_0",
]
# API interface configuration.
[api]
# interface:port to bind the API interface to.
bind="0.0.0.0:28080"
# Secret.
#
# This secret is used for generating login and API tokens, make sure this
# is never exposed. Changing this secret will invalidate all login and API
# tokens. The following command can be used to generate a random secret:
# openssl rand -base64 32
secret="you-must-replace-this"
[integration]
enabled=["mqtt"]
[integration.mqtt]
server="tcp://localhost:1883/"
json=true
region_cn470_0.toml：
# 以上内容不变
# MQTT configuration.
[regions.gateway.backend.mqtt]
# Topic prefix.
#
# The topic prefix can be used to define the region of the gateway.
# Note, there is no need to add a trailing '/' to the prefix. The trailing
# '/' is automatically added to the prefix if it is configured.
#topic_prefix= "cn470_0"
event_topic="gateway/+/event/+"
command_topic="gateway/{{gateway_id}}/command/{{command}}"
# MQTT server (e.g. scheme://host:port where scheme is tcp, ssl or ws)
server="tcp://localhost:1883"
# Connect with the given username (optional)
username=""
# Connect with the given password (optional)
password=""
# 以下内容不变
运行chirpstack：
chirpstack -c ~/.config/chirpstack
至此，安装部署已经完成，接下去是通过控制面板来添加、配置lorawan。请参考下一节吧。
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