LoPy Nano-Gateway Extended (Timeout and Retry)

[bucknall]

Hi @Butch

There's previously was a small bug in the gateway and node code where you need to specify the spread factor (e.g. sf=7).

This has since been patched in the latest firmware release, please try to update your device and your code should now work!

Cheers!

[Butch]

@Butch said in LoPy Nano-Gateway Extended (Timeout and Retry):

I've tried the examples, but I am not having any success. The gateway is not receiving any messages with length > 0. To the best of my knowledge, there are no other LoRa devices in use, and I am using only one gateway and one node.

Any suggestions on how to debug this?

Thanks!

Following up on my own post (poor form, I know, but what to do?), I thought I'd provide more information:

• I am trying to use one LoPy on an expansion board with antenna as a gateway, and one with the same setup as a node.
• I am running this code on the gateway (http://pastebin.com/PDCnq2gF) and this on the node (http://pastebin.com/Ztf5QMWY).
• I am seeing constant messages of zero length being received on the gateway:

Starting LoRaNanoGateway
Received message, length = 0
Received message, length = 0
Received message, length = 0
Received message, length = 0
Received message, length = 0
Received message, length = 0

• I am seeing no acknowledgements on the node:

Starting LoRaNanoNode on device 1
Sending a message from device 1
MESSAGE FAILED
Sending a message from device 1
MESSAGE FAILED
Sending a message from device 1
MESSAGE FAILED
Sending a message from device 1
MESSAGE FAILED

I have tried four different LoPy's in two different physical locations, so I don't think I'm having any RF pollution issues.

I could really use some help with this.

Thanks!

[gerkez]

Hello Roberto,

Where do I change the band?
I don't see it in your scripts

[Butch]

I've tried the examples, but I am not having any success. The gateway is not receiving any messages with length > 0. To the best of my knowledge, there are no other LoRa devices in use, and I am using only one gateway and one node.

Any suggestions on how to debug this?

Thanks!

[gouao]

This post is deleted!

[rvandam]

Thank you for these examples!

Could you add a print(msg) in the gateway code?

It is more consistent with the previous example, and you know quicker that it works (should have started after the coffee this morning :-) )

[adrian12310407]

Thanks, I'll prove it

[livius]

@adrian12310407
you must update firmware
current version is 1.4.0.b1
https://www.pycom.io/support/supportdownloads/

[adrian12310407]

this is the version
(sysname='ESP32', nodename='ESP32', release='0.9.0b', version='8785822 on 2016-10-06', machine='LoPy with ESP32')

[livius]

@adrian12310407
what version of firmware? You can heck by:
os.uname()

[adrian12310407]

hallo and good day
i'm beginner in micrpython
and i have this error when i want use lopy as gateway

---

Running gatewaypy.py
/home/danicampora/Code/pycom/esp-idf-new/components/freertos/./queue.c:1326 (xQueueGenericReceive)- assert failed!
Guru Meditation Error: Core 0 panic'ed.
Register dump:
PC : Guru Meditation Error of type LoadProhibited occurred on core 0. Exception was unhandled.
Register dump:

---

I do not understand why that mistake
I hope you can help me
thank you!!