Issues with ST-901 trackers

giga3 years ago

Hello, first of all - I'm not using traccar but I am posting here in hopes that somebody who has dealt with similar situation can help me out with information.
I have a couple of ST-901 (H02 protocol) devices that are sending location data to my "center" - problem is that they seem like they're blind to ANY attempt I make at configuring them from the center.

I need access to 2 commands (sent from center):

  1. Command for changing device update interval (*HQ,XXXXXXXXXX,D1,HHMMSS,15,1);
  2. Command for blocking power to the vehicle (*HQ,XXXXXXXXXX,S20,HHMMSS,1,1)

None of those commands work - when I send them from the center (or anything at all, doesn't matter if it's a command or not) I get back a regular data location but with V6 instead of V1 - I found out that this indicates "fatigue driving report" - I don't know how this is related.

*HQ,XXXXXXXXXX,V6,104625,A,XXXX.XXXX,N,XXXXX.XXXX,E,0.01,0,030422,fbfffbff,282,02,802,5401,8999597271003089860F#

After this device dumps all the cached location data it has and then reverts back to sending 1 location data each minute.

In case I sent D1 command with interval then it sticks to that interval but only for some time (5 minutes max) and then resumes sending with old interval.

couple things that seem out of ordinary from other H02 devices:

  1. V6
  2. vehicle status bitmask in lowercase
  3. string of numbers at the end 8999597271003089860F

I'm out of options and don't know what to do anymore, really hoping someone can help out

giga3 years ago

Sorry, that is a false information - S20 command does work actually but it acts weird because of cached data that device has. Also, in commands above I forgot to include # in the end - I was writing them from memory, I send actual commands correctly.