Quick Start - Smart IoT

This guide allows you to set up the Smart IoT in less than 5 minutes.

Prerequisites

Before starting, verify that you have:

✅ Active SIM card with data (up to 2 SIMs for redundancy)
✅ Carrier APN data
✅ Tracking server IP and port
✅ Power source 8-38VDC
✅ Serial terminal software or Web Serial

Step 1: Insert SIM Cards

Important: Insert SIMs with the device powered off.

The Smart IoT has 2 SIM slots:

Slot	Function
SIM 0	Primary
SIM 1	Backup (optional)

Open the device cover
Insert primary SIM in slot 0
(Optional) Insert backup SIM in slot 1
Close the cover

Step 2: Connections

Power

Connect GND and VCC (8-38VDC) according to installation diagram.

Antennas (optional)

The Smart IoT supports external antennas:

External GSM antenna (improves coverage)
External GPS antenna (improves accuracy)

Step 3: Connect to device

Option A: Web Serial

Connect the device’s TTL serial port to a USB-TTL converter
Open Web Serial in Chrome/Edge
Select the COM port

Option B: Serial terminal

Connect the USB-TTL converter
Configure: 115200 bps, 8N1
Open connection

The Smart IoT uses TTL 3.3V port, not direct USB. A USB-TTL converter is needed.

Step 4: Configure APN (Primary SIM)

Use the CXAPN command:


>SCXAP0host,user,password<

Examples:

Carrier	Command
Claro AR	`>SCXAP0internet.ctimovil.com.ar,<`
Movistar AR	`>SCXAP0internet.gprs.unifon.com.ar,wap,wap<`
Personal AR	`>SCXAP0gprs.personal.com,<`

Dual SIM

Also configure the backup SIM (SIM1) APN:


>SCXAP1apn.backup,user,password<

Step 5: Configure server

Use the IP command:

Primary IP


>SIP0xxx.xxx.xxx.xxx/port<

Backup IP (recommended)


>SIP4xxx.xxx.xxx.xxx/port<

Example with IP:


>SIP0190.168.1.100/5000<
>SIP4190.168.1.101/5000<

Example with domain:


>SIP0"tracking.miempresa.com",5000<
>SIP4"backup.miempresa.com",5000<

Step 6: Configure Dual SIM (optional)

Manual SIM selection


>SSIM0<    // Use SIM 0 (primary)
>SSIM1<    // Use SIM 1 (backup)

Check active SIM


>QSIM<

Response: RSIM0 or RSIM1

Configure automatic failover

The event engine can switch SIM automatically if connection is lost.

See Dual SIM configuration →

Step 7: Verify connection

Cellular status


>QCEL<

OK response: RCEL,CONNECT,CAT-M,722,310

Query ID


>QID<

Response: RID + your device ID

SIM status


>QSIM<

Response: RSIM0 or RSIM1

Generate report


>GGP00M<

Response: GOK

Final verification

Item	Command	OK Response
Device ID	`>QID<`	`RID` + your ID
SIM0 APN	`>QCXAP0<`	Your APN
SIM1 APN	`>QCXAP1<`	Backup APN
Server IP	`>QIP0<`	Your IP/Port
Active SIM	`>QSIM<`	`RSIM0` or `RSIM1`
Cellular	`>QCEL<`	`RCEL,CONNECT,...`
Generate report	`>GGP00M<`	`GOK`

Additional configuration (Smart IoT)

CANBUS


>SCAN,protocol<

See CANBUS configuration →

iButton / 1-Wire


>QOW<

See configuration →

Digital inputs (6 available)


>QIN<

See I/O configuration →

Digital outputs (3 available)

To activate/deactivate outputs use the SSXP command:


>SSSXP0011<    // Activate output 0
>SSSXP0010<    // Deactivate output 0
>SSSXP0111<    // Activate output 1

See XP command →

Dual SIM advantages

Scenario	Behavior
No SIM0 coverage	Switches to SIM1 automatically
International roaming	Uses local SIM as backup
Carrier failure	Network redundancy

Example failover event


>SEV,01,CND,CEL0,ACC,SSIM1<

If cellular connection is lost → switch to SIM1

LEDs - Quick reference

GPS LED (S)

Status	Meaning
Blinking 700ms	Searching GPS
Blinking 300ms	⚠️ GPS module error
Off	✅ Position OK
Orange 5s	KO mode active

CELLULAR LED (C)

Status	Meaning
Red blinking	Initialized, waiting to connect
Orange blinking	Connecting GPRS
Green blinking	✅ Connected
Orange 5s	KO mode active