Arduino Library for LTE support

[bobwilmes 0 1 1]

Unfortunately I couldn't attend the LTE webinar this morning.
Is there a replay video on YouTube ?
I wanted to ask if there is an Arduino sketch library for using the LTE modem.

I found this example on Github that uses Spresense LTE to connect to the IoT network called Ambient
but it doesn't provide further detail.

https://github.com/bobwilmes/Spresense-Playground/tree/master/sketches/CO2Sensing/viaLTE/CO2_sensing_to_Ambient

[nimish]

@bobwilmes-0-1-1 There's a few Arduino "Examples" that involve LTE that you can try, I used it to confirm the modem worked.

They all use: https://developer.sony.com/develop/spresense/developer-tools/api-reference/api-references-arduino/LTE_8h.html

[bobwilmes 0 1 1]

@nimish Thanks for the LTE Arduino link
I am trying to connect to Amazon AWS IoT using LTE.
LTE Test Example not working. I checked with the https://iot.truphone.com site and my SIM is activated. When I ran the example LTE Test Modem Arduino Script (https://developer.sony.com/develop/spresense/docs/arduino_tutorials_en.html#_publish_gnss_positioning_information_to_aws_server)
it returns "Starting modem test...." but the modem beign never returns.

*** Has anyone else run into problems getting their LTE modem to start ? ***
I used the ICCID of the modem for the IMEI.

/*

• LteTestModem.ino - Example for obtaining modem information
• Copyright 2019, 2021 Sony Semiconductor Solutions Corporation
• This library is free software; you can redistribute it and/or
• modify it under the terms of the GNU Lesser General Public
• License as published by the Free Software Foundation; either
• version 2.1 of the License, or (at your option) any later version.
• This library is distributed in the hope that it will be useful,
• but WITHOUT ANY WARRANTY; without even the implied warranty of
• MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
• Lesser General Public License for more details.
• You should have received a copy of the GNU Lesser General Public
• License along with this library; if not, write to the Free Software
• Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
• This sketch turns on the modem and gets IMEI and FW version.
• Do not need a SIM card for this example.
  */

// libraries
#include <LTE.h>

// initialize the library instance
LTEModem modem;

// IMEI variable
String IMEI = "8944477100001754988";
String VERSION = "1";
LTENetworkRatType RAT = LTE_NET_RAT_UNKNOWN;
void setup() {
// initialize serial communications and wait for port to open:
Serial.begin(115200);
while (!Serial) {
; /* wait for serial port to connect. Needed for native USB port only */
}

// start modem test (reset and check response)
Serial.println("Starting modem test...");
// Power on the modem
if (LTE_IDLE == modem.begin()) {
Serial.println("modem.begin() succeeded.");
} else {
Serial.println("Could not transition to LTE_IDLE.");
Serial.println("Please check the status of the LTE board.");
for (;;) {
sleep(1);
}
}
}

void loop() {

// IMEI of the modem
IMEI = modem.getIMEI();
Serial.println("IMEI: " + IMEI);

//Firmware version of the modem.
VERSION = modem.getFirmwareVersion();
Serial.println("VERSION: " + VERSION);

// Current RAT of the modem.
RAT = modem.getRAT();

switch (RAT) {
case LTE_NET_RAT_CATM:
Serial.println("RAT: LTE-M (LTE Cat-M1)");
break;
case LTE_NET_RAT_NBIOT:
Serial.println("RAT: NB-IoT");
break;
default:
Serial.println("RAT: Unknown type [" + String(RAT) + "]");
break;
}

sleep(1);
}

[CamilaSouza]

Hello, @bobwilmes-0-1-1
From your latest question I guess you were able to solve this problem? Let me know what was the solution if that is the case