@jmarcelino Am getting the error at gateway side. Error message with line number is as below Traceback (most recent call last): File "<stdin>", line 47, in <module> TypeError: unsupported types for add: 'str', 'bytes' Gateway code is attached also node side code is attached. And also please let me know whether i have used correct method to send data to server in the gateway code, using below lines of code response = urequests.get("http://localhost/ksn/server.php?data=" + msg) response.close() 1_1523684617338_node.py 0_1523684617338_gateway.py

I have raised a ticket for the issue of allowing dr_min > 0 for channels 64-71, tested the fix and added a pull request. Hope that it helps (it is working for me!). Regards, Brian

Thanks for the replies! @robert-hh It might be that the program is not burnt onto my LoPy. I ran the uos command and this is what I got: ['main.py', 'sys', 'lib', 'cert', 'boot.py']

@juan-narvaezb95 said in Multi-hop End-Device?: listens, sends and transmits at the same time At the RF channel, the LoPy can either Receive or Send at a given moment. You can of course communicate by WiFi and Lora at the same time.

@rachelsimida this is to fast to read it in this way look at pulses_get https://docs.pycom.io/chapter/firmwareapi/pycom/pycom.html#pycompulsesgetpin-timeout sometimes is also good to dissable irq remember = disable_irq() .... enable_irq(remember)

@juan-narvaezb95 Multi-hop is not supported by the LoRaWAN Specification.

@jmarcelino Thanks for these resources - I'll definitely give them a read.

@rskoniec Thank You sir

@robert-hh Thanks, that did it! I had to do the P12 to 3.3V for the 7-9s to load the factory firmware. I retested a firmware update and it went back to the unresponsive mode. So I then reformatted the /flash area by running: import os os.mkfs('/flash') A firmware update then worked ok. Thanks again.

@livius I'm actually using this code, because I'm looking to get the blink of the meter. Know I need to find when the led is blinking, because he send everytime the value. I want to know how to check the difference between this value and the last one.

@sympatron ACK, so my tendency is to close that attempt.

So I need to do both, i.e. upgrade and change code or is changing my code to declare AU915 is not enough? thanks Simon p.s. just tried changing code and did not see it post to my gateway.

@ahelllycan I think we would need to see code, or general overview of your process. At the moment we are guessing. But @jcaron is right. You should have a call back on message receive and you choose when to send messages based on other criteria. The rest of the time you will be sleeping or waiting.

For that kind of longevity you're better off ditching the secondary cells (rechargeable) and going for a primary cell. I would recommend looking at the SAFT LS or LSH series. They are the best energy density to size batteries available.

It’s probably a better option to try to make it work with the current version of the firmware, otherwise you may have issues down the road when you need something else added or fixed. What are your settings on your sensors? In which direction to you have traffic flowing?

@burgeh As said, I did not investigate the ping-pong example further. I just used it to check, whether the devices work at all. Using the TTN gateway software was more reliable. At least messages form the node to the gateway arrive all the time. You may have a look at the non-TTN gateway example https://github.com/pycom/pycom-libraries/tree/master/examples/loraNanoGateway That one is a litte bit more elaborate and may be a better starting point. I tried it too, and it worked. The code of interest is in the respective main.py files.

@robert-hh There is a PR for that to fix the issue OK, thank you for the heads up

@jcaron Thanks. Just to note this method works also for both a software reset AND powercycle.

Hello @braulio. I think the extra milliseconds are from Lopy info processing, you can try with a different number (10 seconds, 20, 30 etc) and the "extra" time is the same then you have a solution. Also you hsould try to make a new post, the topic is quite different from this one.