@jmarcelino OK, i contact the owner of the gateway to see if it's possible to connect to that gateway. Thanks for all informations! we can close the post ;)

thanks! i didn't want to damage the radio unit.

@shishir said in Lopy4 indoor range: On Cayenne, chose LoRa-> The Things Network->Cayenna LLP That was the missing link. Thanks alot

@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.

@jcaron Ok thanks, appreciate the response and will keep all this in mind. Might reduce the frequency of the call-in's to once a day which of course would decrease power consumption appreciably.

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

@jonasde For verification, you can use a different and dump terminal software like Putty (Windows), screen (mac, linux) or picocom (Linux). Just make sure that any kind of handshake is disabled. For fil etranfer you can use an ftp client like filezilla or fireftp.

@seb OK, I think you are right that it is a power supply issue. I've tried the same cable directly with a USB power supply and haven't seen the issue happen again. So it might be for some reason that the Macbook USB port (or adapter) cannot supply enough power. Will try it with a LiPo connected.

@sympatron OK. I do not know where I found that, and cannot see it in the sources either. The only thing I found in the comments to 1.17.3.b1 was to switch of the RGB led early. So maybe it lights up for other reasons. A transition on P2 may bring the LED on. But at least the fact, that it switched off indicates the normal boot being started.

@bmarkus Hello Bèla. I now tested OTAA join. Due to the timing jitter of the gateway, I wanted to use RX2 for the join response. So Ive set that in the device parameters of the Loriot server. But that did not work. The join response appeared in the RX1 window. Did I expected something wrong from the settings, or just looked at the wrong place? P.S.: After a few attempts, join also worked at the RX1 window.

What is the ETA for the board?

I have the same problem after upgrading to release='1.16.0.b1', version='v1.8.6-849-055728a on 2018-02-13' now I have to do a wlan init (and wlan deinit) to get the mac address firmware bug? tnx André

You can also find the expansion board schematics here: https://github.com/wipy/wipy/tree/master/hardware/ExpansionBoard-v1.2

@cduplouy I am also getting around 15mA during deepsleep. I tried with 3.3v and 3.7v using resistor but then it is not sufficient power for the pycom to run.

@jmarcelino thanks for the clear explanation. It would be really useful if you could put this small section of code on the Getting Started section of Pycom's LoPy documentation for those who are connecting to TTN; the most popular LoRa network in Australia/New Zealand region. I will try and post something in The Things Network Australia Community page too. If you would prefer, I can raise it through GitHub, but I suspect your ability to change the Pycom documentation is much quicker! thanks again for your help Jose. Also, I really enjoyed your talk on The Things Network conference

@jmarcelino Thanks. I was thinking on something like the FT2232H. I would also say it is difficult but it is for an academic research, so I think it is worthy. :) I have just read that page, but today the OpenOCD page with the compatible JTAG adapters seems to have fallen.

I can confirm @River is correct, the LDO automatically switches modes, there is no GPIO pin involved in this

@robert-hh Yes, it looks like better choise. You could try if the figure changes if you add a smaller pull-up resistor, like 4k7 Ohm. I use already 4k7.