CAREU U3

CAREU U3 is an advanced GPS tracker for fleet management solutions supporting communication via UMTS/HSPA/GPRS/EDGE, SMS, FTP, USSD, featuring 3-axis accelerometer, remote configuration, intelligent power management, geofencing, RS232 interface, and a lot more.

Usage specifics
Parameters (27)
Settings (4)
Commands (1)
CAREU U3
Flespi parses telemetry data from your CAREU U3 into a standardized JSON and lets you send commands to CAREU U3 via API.

Here’s the like of JSON you get

{
    "ident": "352625333222111",
    "position.altitude": 273.61,
    "position.hdop": 0.7,
    "position.latitude": 49.069782,
    "position.longitude": 28.632826,
    "position.satellites": 18,
    "server.timestamp": 1650636570.426424,
    "timestamp": 1650636570.426424,
    "device.type.id": "CAREU U3",
    "channel.id": 1111,
    "protocol.id": "systech"
    "engine.ignition.status": true
    ...
}

How to consume this nice JSON

The easiest way is to make a REST API request like this
curl -X GET  --header 'Authorization: FlespiToken XXX' 'https://flespi.io/gw/devices/<device id>/messages'

How to send commands to CAREU U3?

You can send a specific command. Show all commands
You can use pre-defined settings to send instructions more conveniently. Show all settings

You can also

Modify messages

Add or remove parameters, inject data from LBS and reverse-geocoding services, etc.
Learn what plugins can do

Aggregate data

Determine trips and stops, catch events, detect geofence ins/outs, and more.
Learn about flespi analytics capabilities
ain
number
volts
Voltage on the analog input
channel.id
number
ID of channel that received a message
device.id
number
ID of device that received a message
device.name
string
Name of device that received a message
device.type.id
number
ID of device type of device that received a message
din
number
Digital inputs bitmask
dout
number
Digital outputs bitmask
engine.ignition.status
boolean
Engine ignition status
gsm.network.roaming.status
boolean
Mobile network (GSM, 3G, 4G, LTE, 5G, ...) in roaming mode
ident
string
Device unique identifier like serial number, IMEI, etc
ignition.alarm
boolean
Ignition alarm
message.format
string
Message Format code
movement.status
boolean
Current movement state
peer
string
IP:port from which device connecting to the channel
position.altitude
number
meters
Altitude value for position
position.direction
number
degrees
Heading angle at position detection moment
position.hdop
number
Horizontal dilution of precision
position.latitude
number
degrees
Latitude coordinate value
position.longitude
number
degrees
Longitude coordinate value
position.satellites
number
Quantity of satellites used to calculate coordinates for given position information
position.speed
number
km/h
Instant speed at position detection moment
position.timestamp
number
seconds
Timestamp when coordinates where calculated
protocol.id
number
ID of protocol
send.timestamp
number
seconds
Message send timestamp
server.timestamp
number
seconds
Timestamp when server received a message
timestamp
number
seconds
Message timestamp
vehicle.mileage
number
km
Total calculated mileage
Properties
Enable GPRS
enable_gprs
GPRS connection enable
priority: Report priority
gprs_enable: GPRS enable
GPRS APN
gprs_apn
GPRS Access point name configuration
apn: APN
password: Password
username: User Name
GPRS Server
gprs_server
GPRS Server
host: Host
port: Port
IP type
ip_type
Socket type TCP or UDP
type: Socket type
Properties
Send AT Command
at
Send AT Command
cmd: AT Command
Set output 1 to ON
{"cmd":"AT$OUT=1,1"}