lteiot14  2.1.0.0
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LTE IoT 14 Click

LTE IoT 14 Click is a compact add-on board designed for low-latency and low-throughput wireless data communication in IoT applications. This board features the SIM7090G, a multi-band LTE module from SIMCom, supporting Cat-M and Cat-NB communication modes and multi-constellation GNSS (GPS/GLONASS/Galileo/BeiDou) for global connectivity. This board features a UART interface for communication with the host MCU, a USB Type-C port for data transfer and firmware upgrades, as well as visual indicators for real-time network and power status. It also includes test points for easier debugging, dual SMA connectors for LTE and GNSS antennas, and a micro SIM card holder for flexible service provider selection.

Click Product page


Click library

  • Author : Stefan Filipovic
  • Date : Apr 2024.
  • Type : UART type

Software Support

We provide a library for the LTE IoT 14 Click as well as a demo application (example), developed using MikroElektronika compilers. The demo can run on all the main MikroElektronika development boards.

Package can be downloaded/installed directly from NECTO Studio Package Manager(recommended way), downloaded from our LibStock™ or found on Mikroe github account.

Library Description

This library contains API for LTE IoT 14 Click driver.

Standard key functions :

Example key functions :

Example Description

Application example shows device capability of connecting to the network and

sending SMS or TCP/UDP messages, or retrieving data from GNSS using standard "AT" commands.

The demo application is composed of two sections :

Application Init

Initializes the driver and logger.

void application_init ( void )
{
log_cfg_t log_cfg;
lteiot14_cfg_t lteiot14_cfg;
LOG_MAP_USB_UART( log_cfg );
log_init( &logger, &log_cfg );
log_info( &logger, " Application Init " );
// Click initialization.
lteiot14_cfg_setup( &lteiot14_cfg );
LTEIOT14_MAP_MIKROBUS( lteiot14_cfg, MIKROBUS_1 );
if ( UART_ERROR == lteiot14_init( &lteiot14, &lteiot14_cfg ) )
{
log_error( &logger, " Communication init." );
for ( ; ; );
}
log_info( &logger, " Application Task " );
app_state = LTEIOT14_POWER_UP;
log_printf( &logger, ">>> APP STATE - POWER UP <<<\r\n\n" );
}

Application Task

Application task is split in few stages:

  • LTEIOT14_POWER_UP:

    Powers up the device, performs a device reset and reads system information.

  • LTEIOT14_CONFIG_CONNECTION:

    Sets configuration to device to be able to connect to the network (used only for SMS or TCP/UDP demo examples).

  • LTEIOT14_CHECK_CONNECTION:

    Waits for the network registration indicated via CREG command and then checks the signal quality report (used only for SMS or TCP/UDP demo examples).

  • LTEIOT14_CONFIG_EXAMPLE:

    Configures device for the selected example.

  • LTEIOT14_EXAMPLE:

    Depending on the selected demo example, it sends an SMS message (in PDU or TXT mode) or TCP/UDP message or waits for the GPS fix to retrieve location info from GNSS. By default, the TCP/UDP example is selected.

void application_task ( void )
{
switch ( app_state )
{
{
if ( LTEIOT14_OK == lteiot14_power_up( &lteiot14 ) )
{
log_printf( &logger, ">>> APP STATE - CONFIG CONNECTION <<<\r\n\n" );
}
break;
}
{
if ( LTEIOT14_OK == lteiot14_config_connection( &lteiot14 ) )
{
log_printf( &logger, ">>> APP STATE - CHECK CONNECTION <<<\r\n\n" );
}
break;
}
{
if ( LTEIOT14_OK == lteiot14_check_connection( &lteiot14 ) )
{
log_printf( &logger, ">>> APP STATE - CONFIG EXAMPLE <<<\r\n\n" );
}
break;
}
{
if ( LTEIOT14_OK == lteiot14_config_example( &lteiot14 ) )
{
app_state = LTEIOT14_EXAMPLE;
log_printf( &logger, ">>> APP STATE - EXAMPLE <<<\r\n\n" );
}
break;
}
{
lteiot14_example( &lteiot14 );
break;
}
default:
{
log_error( &logger, " APP STATE." );
break;
}
}
}

Note

In order for the examples to work (except GNSS example), user needs to set the APN and SMSC (SMS PDU mode only)

of entered SIM card as well as the phone number (SMS mode only) to which he wants to send an SMS. Enter valid values for the following macros: SIM_APN, SIM_SMSC and PHONE_NUMBER_TO_MESSAGE.

Example:

  • SIM_APN "internet"
  • SIM_SMSC "+381610401"
  • PHONE_NUMBER_TO_MESSAGE "+381659999999"

The full application code, and ready to use projects can be installed directly from NECTO Studio Package Manager(recommended way), downloaded from our LibStock™ or found on Mikroe github account.

Other Mikroe Libraries used in the example:

  • MikroSDK.Board
  • MikroSDK.Log
  • Click.LTEIoT14

Additional notes and informations

Depending on the development board you are using, you may need USB UART Click, USB UART 2 Click or RS232 Click to connect to your PC, for development systems with no UART to USB interface available on the board. UART terminal is available in all MikroElektronika compilers.


lteiot14_send_cmd
void lteiot14_send_cmd(lteiot14_t *ctx, uint8_t *cmd)
Send command function.
lteiot14_init
err_t lteiot14_init(lteiot14_t *ctx, lteiot14_cfg_t *cfg)
LTE IoT 14 initialization function.
lteiot14_t
LTE IoT 14 Click context object.
Definition: lteiot14.h:158
application_task
void application_task(void)
Definition: main.c:248
LTEIOT14_EXAMPLE
@ LTEIOT14_EXAMPLE
Definition: main.c:99
lteiot14_set_sim_apn
void lteiot14_set_sim_apn(lteiot14_t *ctx, uint8_t *sim_apn)
Set sim card APN.
LTEIOT14_OK
@ LTEIOT14_OK
Definition: lteiot14.h:210
LTEIOT14_MAP_MIKROBUS
#define LTEIOT14_MAP_MIKROBUS(cfg, mikrobus)
MikroBUS pin mapping.
Definition: lteiot14.h:141
LTEIOT14_CHECK_CONNECTION
@ LTEIOT14_CHECK_CONNECTION
Definition: main.c:97
lteiot14_send_sms_text
void lteiot14_send_sms_text(lteiot14_t *ctx, uint8_t *phone_number, uint8_t *sms_text)
LTE IoT 14 send SMS in text mode.
LTEIOT14_CONFIG_EXAMPLE
@ LTEIOT14_CONFIG_EXAMPLE
Definition: main.c:98
application_init
void application_init(void)
Definition: main.c:215
lteiot14_cfg_t
LTE IoT 14 Click configuration object.
Definition: lteiot14.h:183
LTEIOT14_POWER_UP
@ LTEIOT14_POWER_UP
Definition: main.c:95
lteiot14_cfg_setup
void lteiot14_cfg_setup(lteiot14_cfg_t *cfg)
LTE IoT 14 configuration object setup function.
LTEIOT14_CONFIG_CONNECTION
@ LTEIOT14_CONFIG_CONNECTION
Definition: main.c:96