MPPS Pycom LoRa WAN Gateway

MPPS-tiny-house-1

main.py

from network import WLAN
import time
import machine
from machine import RTC
import pycom

print('\nStarting LoRaWAN concentrator')
# Disable Hearbeat
pycom.heartbeat(False)

# Define callback function for Pygate events
def machine_cb (arg):
    evt = machine.events()
    if (evt & machine.PYGATE_START_EVT):
        # Green
        pycom.rgbled(0x103300)
    elif (evt & machine.PYGATE_ERROR_EVT):
        # Red
        pycom.rgbled(0x331000)
    elif (evt & machine.PYGATE_STOP_EVT):
        # RGB off
        pycom.rgbled(0x000000)

# register callback function
machine.callback(trigger = (machine.PYGATE_START_EVT | machine.PYGATE_STOP_EVT | machine.PYGATE_ERROR_EVT), handler=machine_cb)

print('Connecting to WiFi...',  end='')
# Connect to a Wifi Network
wlan = WLAN(mode=WLAN.STA)
wlan.connect(ssid='TPW4G_Cj7G2J', auth=(WLAN.WPA2, "<password-here>"))

while not wlan.isconnected():
    print('.', end='')
    time.sleep(1)
print(" OK")

# Sync time via NTP server for GW timestamps on Events
print('Syncing RTC via ntp...', end='')
rtc = RTC()
rtc.ntp_sync(server="pool.ntp.org")

while not rtc.synced():
    print('.', end='')
    time.sleep(.5)
print(" OK\n")

# Read the GW config file from Filesystem
with open('/flash/global_conf.json','r') as fp:
    buf = fp.read()

# Start the Pygate
machine.pygate_init(buf)
# disable degub messages
# machine.pygate_debug_level(1)

global_conf.json

{
  "SX1301_conf": {
    "lorawan_public": true,
    "clksrc": 1,
    "antenna_gain": 0,
    "radio_0": {
      "enable": true,
      "type": "SX1257",
      "freq": 917200000,
      "rssi_offset": -166,
      "tx_enable": true,
      "tx_freq_min": 915000000,
      "tx_freq_max": 928000000
    },
    "radio_1": {
      "enable": true,
      "type": "SX1257",
      "freq": 917900000,
      "rssi_offset": -166,
      "tx_enable": false
    },
    "chan_multiSF_0": {
      "enable": true,
      "radio": 0,
      "if": -400000
    },
    "chan_multiSF_1": {
      "enable": true,
      "radio": 0,
      "if": -200000
    },
    "chan_multiSF_2": {
      "enable": true,
      "radio": 0,
      "if": 0
    },
    "chan_multiSF_3": {
      "enable": true,
      "radio": 0,
      "if": 200000
    },
    "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": 0,
      "if": 300000,
      "bandwidth": 500000,
      "spread_factor": 8
    },
    "chan_FSK": {
      "enable": false
    },
    "tx_lut_0": {
      "pa_gain": 0,
      "mix_gain": 8,
      "rf_power": -6,
      "dig_gain": 0
    },
    "tx_lut_1": {
      "pa_gain": 0,
      "mix_gain": 10,
      "rf_power": -3,
      "dig_gain": 0
    },
    "tx_lut_2": {
      "pa_gain": 0,
      "mix_gain": 12,
      "rf_power": 0,
      "dig_gain": 0
    },
    "tx_lut_3": {
      "pa_gain": 1,
      "mix_gain": 8,
      "rf_power": 3,
      "dig_gain": 0
    },
    "tx_lut_4": {
      "pa_gain": 1,
      "mix_gain": 10,
      "rf_power": 6,
      "dig_gain": 0
    },
    "tx_lut_5": {
      "pa_gain": 1,
      "mix_gain": 12,
      "rf_power": 10,
      "dig_gain": 0
    },
    "tx_lut_6": {
      "pa_gain": 1,
      "mix_gain": 13,
      "rf_power": 11,
      "dig_gain": 0
    },
    "tx_lut_7": {
      "pa_gain": 2,
      "mix_gain": 9,
      "rf_power": 12,
      "dig_gain": 0
    },
    "tx_lut_8": {
      "pa_gain": 1,
      "mix_gain": 15,
      "rf_power": 13,
      "dig_gain": 0
    },
    "tx_lut_9": {
      "pa_gain": 2,
      "mix_gain": 10,
      "rf_power": 14,
      "dig_gain": 0
    },
    "tx_lut_10": {
      "pa_gain": 2,
      "mix_gain": 11,
      "rf_power": 16,
      "dig_gain": 0
    },
    "tx_lut_11": {
      "pa_gain": 3,
      "mix_gain": 9,
      "rf_power": 20,
      "dig_gain": 0
    },
    "tx_lut_12": {
      "pa_gain": 3,
      "mix_gain": 10,
      "rf_power": 23,
      "dig_gain": 0
    },
    "tx_lut_13": {
      "pa_gain": 3,
      "mix_gain": 11,
      "rf_power": 25,
      "dig_gain": 0
    },
    "tx_lut_14": {
      "pa_gain": 3,
      "mix_gain": 12,
      "rf_power": 26,
      "dig_gain": 0
    },
    "tx_lut_15": {
      "pa_gain": 3,
      "mix_gain": 14,
      "rf_power": 27,
      "dig_gain": 0
    }
  },
  "gateway_conf": {
    "gateway_ID": "4A6A29781490703E",
    "server_address": "au1.cloud.thethings.network",
    "serv_port_up": 1700,
    "serv_port_down": 1700,
    "servers": [
      {
        "gateway_ID": "4A6A29781490703E",
        "server_address": "au1.cloud.thethings.network",
        "serv_port_up": 1700,
        "serv_port_down": 1700,
        "serv_enabled": true
      }
    ]
  }
}