RAK8212 - Cannot connect to network after some time

[espruino-discuss]

Posted at 2019-05-03 by user99293

Hey guys,

everything works fine until some point.
Then It starts dumping tons of RDY and +PACSP1 on serial that was meant for modem.
And when it does, there is nothing i can do to stop it, not even reseting the board... I mean, it stops while the modem is down, but once i bring it up it won't stop until i reset the board.

I do have setConsole set on init. I also run it after boot, this isn't helping.

Bluetooth.setConsole(true);

I can't run a simple AT command.
Have you guys seen that behaviour before?

[espruino-discuss]

Posted at 2019-05-03 by @gfwilliams

It starts dumping tons of RDY and +PACSP1 on serial

By serial, do you mean over the Bluetooth connection?

The nRF52s only have one serial port, so that's the one it'd be using for the modem. If you were using it for something else as well then you'd be very likely to get conflicts.

If you mean Bluetooth I have no idea really - but as far as I know RDY would come from the modem, so perhaps there's some code somewhere that is causing it to be mirrored over Bluetooth LE (like a console.log for error conditions or something).

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Posted at 2019-05-03 by user99293

Thanks @gfwilliams,

Yes, By serial I mean over Bluetooth. I'm really not sure what's happening.

RDY is sent when ME initialization is successful. But I never received it before, now i'm wondering, in the GSM/GPRS example, there is a wait of 30 seconds before connecting to GSM.

var gprs;
console.log("Turning Cell on");
require("iTracker").setCellOn(true, function(usart) {
  console.log("Waiting 30 sec for GPRS connection");
  setTimeout(function() {
     // ...
 },30000);

Is it really necessary? Because I ain't doing it.
Should I wait that long before registering to the network?

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Posted at 2019-05-03 by user99293

I've just turned on the modem, and sent AT, but sometimes it fails because of those messages.

Shouldn't it be sent only on turning modem up?

var gprs;
Bluetooth.setConsole(true);
var at;
console.log("Turning Cell on");
require("iTracker").setCellOn(true, function(usart) {
  console.log("Waiting 30 sec for GPRS connection");
  at = require('AT').connect(usart);
  at.debug();
});
>
Turning Cell on
Waiting 30 sec for GPRS connection
] "\r"
] "\nRDY\r\n"
] "\r\n+"
] "PACSP1\r\n"
] "\r\nR"
] "DY\r\n"
] "\r\n+"
] "PACSP1\r\n"
] "AT\r"
] "\r\nOK\r\n"
>at.cmd("AT\r\n")
["AT\r\n"
=undefined
] "\r\nR"
] "DY\r\n"
] "\r\n+"
] "PACSP1\r\n"
] "\r\nR"
] "DY\r\n"
] "\r\n+"
] "PACSP1\r\n"

I can't connect to the network anymore.

It only happens when the SIM card is present.
What do i do?

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Posted at 2019-05-04 by user99293

When I took the ammeter out the program worked flawless.