New firmware release 1.6.7.b1 (LoRaWAN Nano Gateway with TTN example!!)

[jomifo]

@daniel +1 to see code adapted for US frequencies.

[Colateral]

Hello Daniel,

You promised weeks ago (around build 1.3.0) that you will enable frozen bytecode. When this will happen?

[johncaipa]

Is there anyone who has tested how many nodes could be received in practice with the nano-gateway?

[Colateral]

@johncaipa So far we tested with 7 nodes .... but not with pycom nano-gw example.

[gerkez]

Hello Daniel,

The scripts look great, but I don't seem to get them working.
I have created a gateway in the TTN console, but the gateway doesn't connect.
I have a WiFi connection to my router, so that is not the problem.

In your config.py:
the GATEWAY_ID = '11aa334455bb7788'. Where did you get this ID?
I created my own ID when I registered a gateway at TTN console.
Can I leave the LORA_DR = "SF7BW125" # DR_5 unchanged?

In the nanogateway.py:
def stop(self):
# TODO: Check how to stop the NTP sync
# TODO: Create a cancel method for the alarm
# TODO: kill the UDP thread
self.sock.close()
I have no idea how to handle those TODO's.
Can you give some examples?

Hopefully you can help a newbee to get this working.
Thanks

GerkeZ

[daniel]

@gerkez you can put there in the Gateway ID that you created when registering it to TTN.

Can I leave the LORA_DR = "SF7BW125" # DR_5 unchanged?

Yes.

Don't worry about those TODO's, those will be taken care of on a future update of the nanogateway scripts.

Cheers,
Daniel

[jmarcelino]

@gerkez
also make sure you have selected the "packet forwarder" protocol when registering the gateway in TTN. I think your ID question may relate to this.

[gerkez]

@daniel
Thanks. I'll try it and let you know

[gerkez]

@jmarcelino
Hi. Thanks.
I deleted my gateway and registered a new one with the "packet forwarder" protocol.
It generates a Gateway ID based on the EUI (eui-70b3d54991ae49e8).
I tried both ID's in the config.py.
eui-70b3d54991ae49e8: script runs but the console displays "not connected".
70b3d54991ae49e8 (without prefix eui-): script runs but restarts all the time.

Here is my config.py:

GATEWAY_ID = 'eui-70b3d54991ae49e8' (not working)

GATEWAY_ID = '70b3d54991ae49e8' (infinite loop, restart)

SERVER = 'bridge.eu.thethings.network'
PORT = 1883

NTP = "pool.ntp.org"
NTP_PERIOD_S = 3600

WIFI_SSID = 'my ssid'
WIFI_PASS = 'my passwd'

LORA_FREQUENCY = 868100000
LORA_DR = "SF7BW125" # DR_5

[daniel]

The correct gateway ID to use is: 70b3d54991ae49e8

These 2 parameters are incorrect:

SERVER = 'bridge.eu.thethings.network'
PORT = 1883

Please use the same as in the example, which are:

SERVER = 'router.eu.thethings.network'
PORT = 1700

Cheers,
Daniel

[gerkez]

@daniel
@jmarcelino

Hi Guys,

Thanks a lot for helping.
I have a connection to TTN, but is seems that my lopy reboots all the time (every 30 -60 seconds).
I hav put a red led for 3 seconds in main.py and I can see this red led light up all the time and than I lose my connection (wiFi as well).
Hope you have an idea what's going wrong

[livius]

@gerkez
What you got on UART REPL?
Put info here - there can be some usefull info

[gerkez]

@livius
Hello Livius,

My pymakr doesn't work. Connection errors.
So I use Putty. Problem is that the device reboots all the time, so I don't see anything on the UART REPL

[livius]

@gerkez
Try Arduino IDE -> COM port monitor instead

[zmrzli]

@Colateral
My problem was that password was not long enough. Once I changed it, it worked fine. It would be better if some indication was given about a problem from WiPy, but no big deal, once understood...!

[gerkez]

@zmrzli
Which password do you mean?

[Shaun]

@gerkez Are you using a custom base PCB (your own) or are you using the Pycom expansion PCB?
I ask, as you may be running into the WiPy resetting due to rf reflections issue.

[gerkez]

@Shaun
I am using a pycom expansion board with LoPy

[Shaun]

@gerkez Ok, then you should not be experiance problems from rf reflections, and should be able to rule it out.
I doubt you are working on a conductive table ;-)

[gerkez]

@livius

Hello Livius.

Here is what I see on my W UART REPL:

I (146522) wifi: mode : sta (24:0a:c4:00:84:44)
I (146523) wifi: sleep disable
I (146650) wifi: n:1 0, o:6 0, ap:255 255, sta:1 0, prof:6
I (147638) wifi: state: init -> auth (b0)
I (147640) wifi: state: auth -> assoc (0)
I (147643) wifi: state: assoc -> run (10)
I (147662) wifi: connected with IANNIS, channel 1
WiFi connected!

Push ack
I (157644) wifi: pm start, type:0

Pull ack
Pull ack
Push ack
Guru Meditation Error of type LoadProhibited occurred on core 0. Exception was unhandled.
Register dump:
PC : 0x400f6f9f PS : 0x00060b30 A0 : 0x800d8428 A1 : 0x3ffc5c30
A2 : 0x000330d0 A3 : 0x3ffc666c A4 : 0x00000001 A5 : 0x00000000
A6 : 0x00000000 A7 : 0x00000000 A8 : 0x800f5ed2 A9 : 0x3ffe96c0
A10 : 0x00000001 A11 : 0x00000001 A12 : 0x3ffe21b0 A13 : 0x00000010
A14 : 0x3ffe9830 A15 : 0x3ffe9790 SAR : 0x00000013 EXCCAUSE: 0x0000001c
EXCVADDR: 0x000330d0 LBEG : 0x400f296c LEND : 0x400f2974 LCOUNT : 0x00000000

Backtrace: 0x400f6f9f:0x3ffc5c30 0x400d8428:0x3ffc5c70 0x400d85b8:0x3ffc5c90 0x400d862b:0x3ffc5cb0 0x400d8b38:0x3ffc5ce0 0x400d8d52:0x3ffc5d00 0x400d7eff:0x3ffc5d40

================= CORE DUMP START =================

Here is a coredump. I haven't copied it.

================= CORE DUMP END =================
Rebooting...
ets Jun 8 2016 00:22:57

rst:0xc (SW_CPU_RESET),boot:0x13 (SPI_FAST_FLASH_BOOT)
configsip: 0, SPIWP:0x00
clk_drv:0x00,q_drv:0x00,d_drv:0x00,cs0_drv:0x00,hd_drv:0x00,wp_drv:0x00
mode:QIO, clock div:2
load:0x3fff9010,len:8
load:0x3fff9018,len:248
load:0x40078000,len:4056
load:0x4009fc00,len:920
entry 0x4009fde4
I (1542) wifi: wifi firmware version: 2a22b2d
I (1558) wifi: pp_task_hdl : 3ffd72f8, prio:23, stack:8192
I (1558) wifi: Init lldesc rx mblock:10
I (1558) wifi: Init lldesc rx ampdu len mblock:7
I (1560) wifi: Init lldesc rx ampdu entry mblock:4
I (1565) wifi: sleep disable
I (2553) wifi: frc2_timer_task_hdl:3ffdd348, prio:22, stack:2048
I (2574) wifi: mode : softAP (24:0a:c4:00:84:45)
MicroPython v1.8.6-493-g99ac80fe on 2017-03-03; LoPy with ESP32
Type "help()" for more information.