pygate, wipy & TTN no data

Gregor Leban · Feb 6, 2022, 5:34 PM

Hello,
I think I did everything ok, as on the manuals, but gateway is still disconected on TTN

On my pygate I have:
boot. py

# boot.py -- run on boot-up
import machine
import pycom
from _pybytes import Pybytes
from _pybytes_config import PybytesConfig

# We want to save a little bit power
# Disable Heartbeat LED
pycom.heartbeat_on_boot(False)
# Enable Pybytes
pybytes_conf = PybytesConfig().read_config()
pybytes = Pybytes(pybytes_conf)
pybytes.start()

# disable debug messages
machine.pygate_debug_level(1)

# Proceed with main.py
machine.main('main.py')

global_conf.json (downloaded from TTN);

{
  "SX1301_conf": {
    "lorawan_public": true,
    "clksrc": 1,
    "antenna_gain": 0,
    "radio_0": {
      "enable": true,
      "type": "SX1257",
      "freq": 867500000,
      "rssi_offset": -166,
      "tx_enable": true,
      "tx_freq_min": 863000000,
      "tx_freq_max": 870000000
    },
    "radio_1": {
      "enable": true,
      "type": "SX1257",
      "freq": 868500000,
      "rssi_offset": -166,
      "tx_enable": false
    },
    "chan_multiSF_0": {
      "enable": true,
      "radio": 1,
      "if": -400000
    },
    "chan_multiSF_1": {
      "enable": true,
      "radio": 1,
      "if": -200000
    },
    "chan_multiSF_2": {
      "enable": true,
      "radio": 1,
      "if": 0
    },
    "chan_multiSF_3": {
      "enable": true,
      "radio": 0,
      "if": -400000
    },
    "chan_multiSF_4": {
      "enable": true,
      "radio": 0,
      "if": -200000
    },
    "chan_multiSF_5": {
      "enable": true,
      "radio": 0,
      "if": 0
    },
    "chan_multiSF_6": {
      "enable": true,
      "radio": 0,
      "if": 200000
    },
    "chan_multiSF_7": {
      "enable": true,
      "radio": 0,
      "if": 400000
    },
    "chan_Lora_std": {
      "enable": true,
      "radio": 1,
      "if": -200000,
      "bandwidth": 250000,
      "spread_factor": 7
    },
    "chan_FSK": {
      "enable": true,
      "radio": 1,
      "if": 300000,
      "bandwidth": 125000,
      "datarate": 50000
    },
    "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": "2462ABFFFEF4Dxxx",
    "server_address": "eu1.cloud.thethings.network",
    "serv_port_up": 1700,
    "serv_port_down": 1700,
    "servers": [
      {
        "gateway_ID": "2462ABFFFEF4Dxxx",
        "server_address": "eu1.cloud.thethings.network",
        "serv_port_up": 1700,
        "serv_port_down": 1700,
        "serv_enabled": true
      }
    ]
  }
}

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='<SSID>', auth=(WLAN.WPA2, "<PASSWORD>"))

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_config.json','r') as fp:
    buf = fp.read()

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

pybytes_config.json

I folow manuals and create in TTN Aplication and gateway:

and to mention, when I restart pygate I get this:

>>> WMAC: 2462ABF4Dxxx
Firmware: 1.20.2.r6
Pybytes: 1.7.1
WMAC: 2462ABF4Dxxx
Firmware: 1.20.2.r6
Pybytes: 1.7.1
Initialized watchdog for WiFi and LTE connection with timeout 1260000 ms
WiFi connection established
Connected to MQTT mqtt.pybytes.pycom.io
Pybytes connected successfully (using the built-in pybytes library)
Traceback (most recent call last):
  File "boot.py", line 16, in <module>
AttributeError: 'module' object has no attribute 'pygate_debug_level'

Starting LoRaWAN concentrator
Traceback (most recent call last):
  File "main.py", line 25, in <module>
AttributeError: 'module' object has no attribute 'callback'
Pycom MicroPython 1.20.2.r6 [v1.11-c5a0a97] on 2021-10-28; WiPy with ESP32
Pybytes Version: 1.7.1
Type "help()" for more information.
>>>

What did I do wrong?

Gregor Leban · Feb 7, 2022, 8:53 AM

@jcaron
wii that was it.
I can’t tell you how happy I am that after many days of trying it finally works! : D

jcaron · Feb 7, 2022, 8:24 AM

@Gregor-Leban it does look better now. You must be missing the global_config.json (not global_conf.json).

Gregor Leban · Feb 7, 2022, 8:20 AM

Now I did it again. But I'm still disconected on TTN gateway

Connecting to COM3...
WMAC: 2462ABF4Dxxx
Firmware: 1.20.2.r6
Pybytes: 1.7.1
Initialized watchdog for WiFi and LTE connection with timeout 1260000 ms
WiFi connection established
Connected to MQTT mqtt.pybytes.pycom.io
Pybytes connected successfully (using the built-in pybytes library)
Pybytes configuration read from /flash/pybytes_config.json

Starting LoRaWAN concentrator
Connecting to WiFi... OK
Syncing RTC via ntp...... OK

Traceback (most recent call last):
  File "main.py", line 48, in <module>
OSError: [Errno 2] ENOENT
Pycom MicroPython 1.20.2.r6 [v1.11-c5a0a97] on 2021-10-28; WiPy with ESP32
Pybytes Version: 1.7.1
Type "help()" for more information.

jcaron · Feb 6, 2022, 9:41 PM

@Gregor-Leban did you flash the WiPy with the Pygate version of the firmware? Use the firmware upgrade tool and make sure you pick the right version.

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