does somebody work with careu U1 Lite?

Any place, how to configure cereu U1 Lite.

I am very new in traccar.
i am a programmer

please any idea?

U1 lite uses intellitrac protocol as far as I know. Port 5037 is the right. Make sure you configure it to use ASCII protocol format.

Thanks, i will try.

i can not make it work

in the device, i configured:

AT$MODID=936
AT$APN=claro.pe,claro,1234
AT$RETRY=5
AT$FORMAT=0  (ASCII MODE)
AT$HB=60,1
AT$HOSTS=1,0,XX.XX.XX.XX,5037 (MY TRACCAR HOST, PORT 5037)
AT$PDSR=1,30,1000,20,2,0,0,1,1 (30s)
AT$GPRSEN=1,0 (active)
AT$SAVE

In the traccar web, i have used 936 as identificator

any idea, why doesnt it work?

Check this guide:

https://www.traccar.org/troubleshooting/

You can also send me some HEX samples from log to check.

2016-11-14 17:59:34  INFO: [AD27A250] connected
2016-11-14 17:59:36 DEBUG: [AD27A250: 5037 < 179.7.36.55] HEX: faf80001a8030000
2016-11-14 17:59:36 DEBUG: [AD27A250: 5037 > 179.7.36.55] HEX: faf80001a8030000
2016-11-14 17:59:46 DEBUG: [AD27A250: 5037 < 179.7.36.55] HEX: faf80002a8030000
2016-11-14 17:59:46 DEBUG: [AD27A250: 5037 > 179.7.36.55] HEX: faf80002a8030000
2016-11-14 18:00:49 DEBUG: [AD27A250: 5037 < 179.7.36.55] HEX: faf80003a8030000
2016-11-14 18:00:49 DEBUG: [AD27A250: 5037 > 179.7.36.55] HEX: faf80003a8030000
2016-11-14 18:01:53 DEBUG: [AD27A250: 5037 < 179.7.36.55] HEX: faf80004a8030000
2016-11-14 18:01:53 DEBUG: [AD27A250: 5037 > 179.7.36.55] HEX: faf80004a8030000
2016-11-14 18:02:57 DEBUG: [AD27A250: 5037 < 179.7.36.55] HEX: faf80005a8030000
2016-11-14 18:02:57 DEBUG: [AD27A250: 5037 > 179.7.36.55] HEX: faf80005a8030000
2016-11-14 18:04:01 DEBUG: [AD27A250: 5037 < 179.7.36.55] HEX: faf80006a8030000
2016-11-14 18:04:01 DEBUG: [AD27A250: 5037 > 179.7.36.55] HEX: faf80006a8030000
2016-11-14 18:05:05 DEBUG: [AD27A250: 5037 < 179.7.36.55] HEX: faf80007a8030000
2016-11-14 18:05:05 DEBUG: [AD27A250: 5037 > 179.7.36.55] HEX: faf80007a8030000
2016-11-14 18:06:09 DEBUG: [AD27A250: 5037 < 179.7.36.55] HEX: faf80008a8030000
2016-11-14 18:06:09 DEBUG: [AD27A250: 5037 > 179.7.36.55] HEX: faf80008a8030000
2016-11-14 18:07:13 DEBUG: [AD27A250: 5037 < 179.7.36.55] HEX: faf80009a8030000
2016-11-14 18:07:13 DEBUG: [AD27A250: 5037 > 179.7.36.55] HEX: faf80009a8030000

2016-11-14 18:27:42 DEBUG: [AD27A250: 5037 > 179.7.36.55] HEX: faf8001c09eff400
2016-11-14 18:28:47 DEBUG: [AD27A250: 5037 < 179.7.36.55] HEX: faf8001d09eff400
2016-11-14 18:28:47 DEBUG: [AD27A250: 5037 > 179.7.36.55] HEX: faf8001d09eff400
2016-11-14 18:29:50 DEBUG: [AD27A250: 5037 < 179.7.36.55] HEX: faf8001e09eff400
2016-11-14 18:29:50 DEBUG: [AD27A250: 5037 > 179.7.36.55] HEX: faf8001e09eff400
2016-11-14 18:30:54 DEBUG: [AD27A250: 5037 < 179.7.36.55] HEX: 001f00020000000000f4ef0900ab0006172f1a100b0e
2016-11-14 18:31:24 DEBUG: [AD27A250: 5037 < 179.7.36.55] HEX: 001f00020000000000f4ef0900ab0006172f1a100b0e
2016-11-14 18:32:24 DEBUG: [AD27A250: 5037 < 179.7.36.55] HEX: 001f00020000000000f4ef0900ab0006172f1a100b0e
2016-11-14 18:33:24 DEBUG: [AD27A250: 5037 < 179.7.36.55] HEX: 001f00020000000000f4ef0900ab0006172f1a100b0e

In the first fragment you only have heartbeat messages, no GPS data at all. In the second one you have a few heartbeat packets and then some binary messages. Traccar only supports ASCII format, not binary.

SO, the problem is not sending gp data... mmm (yes i tried binary data in the secnd one)

Yes, it looks like it doesn't send any GPS data.

i dont have idea why. i reset the GPS, and configure as above. :(

Now works, my fault. thanks @Anton