Open Tracker - failed auto-baudrate error

Question

Open Tracker - failed auto-baudrate error

Closed this issue 7 years ago · 10 comments

Hi,
After couple of days of working my open tracker gives me only one message on serial port "ailed auto-baudrate error" and after 4 or 5 retry attempts it stops gsm connection. What can cause this and how to fix it. I have attached image of what i see on serial monitor.

Thanks for any help offered.

Regards,
Haroon

Answer 1 · 2017-04-10T13:26:50.000Z

haroon-rehman commented 8 years ago

Answer 2 · 2017-04-10T17:20:43.000Z

Try to add the following code after https://github.com/geolink/opentracker/blob/master/OpenTracker/gsm.ino#L62
debug_print("read status");

Just before the line that starts with "return".

Your code should look like:

#if MODEM_UG96
  // inverted status signal
  debug_print("read status");
  return digitalRead(PIN_STATUS_GSM) != HIGH;
#else

Load the modified sketch and check if you can see the message "read status" in the serial log.

Answer 3 · 2017-04-11T05:18:58.000Z

Hi Paolo, Yes I can see the 'read status' message in the logs. [cid:eebaf623-b8b4-49b1-87e8-c9e80ea20caf] Regards, Haroon Orion Systems

…

________________________________ From: Paolo Messina <notifications@github.com> Sent: Monday, April 10, 2017 9:20:45 PM To: geolink/opentracker Cc: Haroon Rehman; Author Subject: Re: [geolink/opentracker] Open Tracker - failed auto-baudrate error (#68) Try to add the following code after https://github.com/geolink/opentracker/blob/master/OpenTracker/gsm.ino#L62 debug_print("read status"); Just before the line that starts with "return". Your code should look like: #if MODEM_UG96 // inverted status signal debug_print("read status"); return digitalRead(PIN_STATUS_GSM) != HIGH; #else Load the modified sketch and check if you can see the message "read status" in the serial log. — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub<#68 (comment)>, or mute the thread<https://github.com/notifications/unsubscribe-auth/AYGD_qPgo8nXeif0dhuzgMOA4-5Fh5CMks5rumTtgaJpZM4M4xwc>.

Answer 4 · 2017-04-11T05:20:40.000Z

haroon-rehman commented 8 years ago

Answer 5 · 2017-04-11T08:53:57.000Z

Stupid question, but I must ask: are you sure you have the 3G modem on your board?
You should see "Quectel UG96" written on the top white label.

If this is actually an UG96 (3G) then the modem is not starting up (STATUS pin never goes high). Which is confirmed by the green LED always off.

There might be several causes to that. First, please check your power input: if the input voltage is too low or the current provided by your power source is not enough, the modem will not start.

If you have a Voltmeter and some spare male headers or solid wires, you can probe the following voltages on the expansion connector:

Please report your readings, along with your power source voltage/current rating.

Answer 6 · 2017-04-11T09:13:45.000Z

Hi Paolo,
It is a UG96 chip.
The power adapter used is 12VDC, 1500 mA. The tracker worked on it for almost 2 days before i started getting this problem
The voltages on the expansion connector are same as indicated in your pics. I have attached some images below;

Answer 7 · 2017-04-11T09:46:05.000Z

Voltages are correct, also power supply rating is fine.

Could you try to power on the device without the SIM card?
And check the serial log and the green LED.

Answer 8 · 2017-04-11T10:32:30.000Z

Hi mate,
Its still the same. No green light. See the image below.

Answer 9 · 2017-08-21T18:25:12.000Z

Any final solution for this? I have the same issue which appeared after first flash try.

Answer 10 · 2017-08-22T08:45:58.000Z

Here the modem did not reply at all, your case is different. See #72