Configure PAJ PET Finder 4G for Traccar

Sebastian10 days ago

Finaly i get the first one to work :)

SMS Command:

IP domain port

Returns "SET OK"

Protocol is H02 on Port 5013

btw

CQ

Will restart the tracker

GPS4PETS9 days ago

which paj device is it?
the small black one or the one with the 2 glowing eyes?

CXZT should show status
is the tracker shown in traccar?
Can you post a pic of the details page with all transmitted data?

Sebastian9 days ago

It's the "PAJ Allround Finder 4G", the black one without the silver line arround (that's also an Allround Finder 4G, but an LK208-4G)

The CXZT command returns nothing...

Here is the screenshot of returned data (lat and lon reduced for privacy ;) )
Screenshot_20250213_182853_org.traccar.manager-01.jpeg

GPS4PETS8 days ago

how did you set the apn?

Sebastian8 days ago

I didn't set the APN, as the password is unknown.
The Tracker connects to my Traccar instance without changing the APN (with my own SIM Card)...

GPS4PETS8 days ago

may i ask from which provider sim card comes?
i have a paj 4g pet here and can change all but the apn.
the apn is fixed to wsim
my emnify card does not go online

GPS4PETS8 days ago

but right now it is working with my traccar server and the original paj sim card

GPS4PETS8 days ago

one thing i dont understand why it the tracker sending data in text and hex?

2025-02-14 17:32:51  INFO: [T9b5f0d91: h02 < 90.134.???.????] *HQ,?????????,V1,163251,A,5420.????,N,010??.????,E,000.00,063,140225,FFFFF9FF,262,03,11891,2721818,21,0#
2025-02-14 17:32:51  INFO: [T9b5f0d91] id: ??????????, time: 2025-02-14 17:32:51, lat: 54.?????, lon: 10.?????, course: 63.0, batteryLevel: 21
2025-02-14 17:32:51  INFO: [T9b5f0d91: h02 > 90.134.???.????] *HQ,??????????,V4,V1,20250214163251#
2025-02-14 17:32:54  INFO: [T9b5f0d91: h02 < 90.134.???.???] 
24----------1632441402--54--721--10--4427e000063fbfff9ff000000000106032e7300000800000000000000000000cc2de097bcee38ce2de097bcee3866d154085988381e
2025-02-14 17:32:54  INFO: [T9b5f0d91] id: ??????????, time: 2025-02-14 17:32:44, lat: 54.??????, lon: 10.?????, course: 63.0, batteryLevel: 21
GPS4PETS8 days ago

the hex is the gpsdata but i cant find a documention for the length of it. all documentation shows a much shorter hex string

Sebastian8 days ago

Sure, my personal SIM Card (for testing) is from german "FONIC" with APN pinternet.interkom.de - the original SIM is an EMnify SIM Card!

The mix from text and binary messages seems normal!

GPS4PETS8 days ago

then fonic is not so picky about the APN.
I am using emnify for all my trackers but the APN must be em or emnify.
In the PAJ tracker it is wsim that should be WhereEver Sim cards

Sebastian8 days ago

Do you have a business? It is nearly impossible in germany to get an IoT/M2M Contract without a business...

2 Weeks before, i got two SIM Cards from TruPhone (Teltonika) that i can bought as a private person...

GPS4PETS8 days ago

yes just google gps4pets.
We only have about 1300 trackers out in the world but we are still a young company

Sebastian8 days ago

Oh okay, i see your homepage :)
1300 trackers sounds like a good start

GPS4PETS8 days ago

just played a little around with the PAJ 4G Pet tracker.

connected it to serial TTL 2 USB converter and got a reply on the AT%TEST=START# command
Now i know the SDK type and version.

soldered usb cable to onboard USB pins. and started aboot with the firmware for the C032 4G Pet tracker.

and now i have a unlocked tracker which works with T808/huabao protocol