Questions tagged [gsm]

For questions relating to the Global System for Mobile Communications (GSM) when employed for IoT applications.

Filter by
Sorted by
Tagged with
0
votes
0answers
15 views

Connect an esp32 with AWS MQTT with SIM800L

I am are trying to use a sim800L module to connect an esp32 running Arduino to AWS MQTT. I need to connect and publish and subscribe to topics. I am doing this successfully via wifi. Not via the ...
1
vote
1answer
29 views

How can I increase the size of the receiving sms Buffer in GSM

Recently I am working on programming IoT Project, to receive messages from the phone. That part worked, but the problem that I am currently facing is that the message does not arrive fully because of ...
3
votes
2answers
64 views

GSM enabled Linux device with USB link

I am looking for a device that runs Linux, has GSM connectivity (given a sim card) and has a USB port. I would like to turn a standard printer into a cloud printer by connecting it via USB to a device ...
1
vote
0answers
37 views

How to send GPS coordinates to a SQL database from my GPS+GSM device?

I'm getting ready to start building a simple wireless GPS device. This device will use an arduino, and a cellular GSM module paired with a GPS device (an example is the SIM5320a aka the FONA 3G from ...
1
vote
1answer
34 views

Problem with UART of Fona 3G from adafruit. (aka SIM5320a)

My issue is fairly simple to describe but I have no idea what the problem could be. So I got my FONA 3G and immediately after taking it out of the box, I connected the battery and I wired up my FTDI ...
7
votes
2answers
334 views

IoT 2G wireless data - service providers options in USA

What are the service providers options in USA for IoT 2G data? Project scenario: raspberry pi 3 devices that will be collecting data in remote areas I would buy modem modules compatible with the ...
1
vote
0answers
581 views

use Gsm Sim800L To Publish data using MQtt [closed]

I have a Module Gsm Sim800L and I must Publish Data to a nodeRed Server Of IBM Bluemix. I used the library (Arduino MQTT Library for SIM800 GSM Modem) at this Link : https://elementztechblog....
5
votes
1answer
605 views

Connecting a SIM800L to a IBM BlueMix Server via MQTT

I am trying to connect a IoT node to a IBM IoT server via MQTT/GSM. I am using a Sim800L GSM module, and a serial USB device to send the commands to module from my computer. Later on, I will use the ...
6
votes
2answers
863 views

Syntax for using HTTP GET with ampersand and float

I am currently working on a wireless gardening project and quite new to this field. My sht10 sensor is connected to Arduino Uno and GSM AT commands is used for wireless communication. I am using ...
6
votes
1answer
180 views

How does APN affect cellular connectivity?

We had recently deployed a few Cellular IoT devices on the field, using SIMs from a certain provider (Airtel India). They had provided us with an APN, but we chose not to program our device with the ...
1
vote
0answers
387 views

GPS/GSM Tracker not sending location [closed]

I bought GPS/GSM Tracker from eBay but it doesn't work and i can't get Location Steps I followed: I bought a new sim card with calls and data (checked that it working) I installed an app on my ...
3
votes
1answer
527 views

MQTT Library for Arduino using GSM

I am developing a vehicle tracking device.I want to send data to server through MQTT from my sim808 GSM module.But I couldn't find any good library of MQTT for Arduino. There are so much resources for ...
3
votes
0answers
133 views

Alternatives to Siemens Tc65 (GSM modem) as a terminal to process text messages

I'm working on a solution to solve an existing inconvenience. Some "smart" containers send an alarm via text message when they're full. The number it sends to is a personal phone number from a worker ...
5
votes
1answer
931 views

How to pass two parameters in header using AT Command with SIM800 GSM modem?

I am reposting a question here from my StackOverflow I have a restful webservice with POST method. I want to use this webservice using a GSM Modem with SIM800. I am using following command ...
9
votes
3answers
187 views

Calculate velocity and direction on microcontroller or on remote server?

Assume that I have a device attached on a car which includes an MCU, and a SIM908 module. The SIM908's function is to receive GPS data from satellites and then send them to the remote server through ...
-1
votes
1answer
196 views

How to trigger a function in SIM800C Module using an SMS from AWS IOT? [closed]

I am using a SIM800C Module with AWS IoT. I want to be able to trigger some code running on my device by sending an SMS from AWS. I can generate the SMS OK, but I'm stuck with how to get this to ...
3
votes
1answer
1k views

How to transmit binary data over CIP using AT commands?

I'm trying to transmit binary data using Ai-Thinker A6 GPRS module.The problem is that it does not support the AT+CIPSEND=[length] command (looks like a firmware bug). If you use a simple AT+CIPSEND ...
6
votes
1answer
475 views

SSH into an Orange Pi connected to the internet via 2G GSM module

I wanted to SSH into my Orange Pi remotely. It will be connected to the Internet via a 2G GSM module. How should I go about it? Usually it's ssh username@ip address. The setup isn't implemented yet so ...
8
votes
1answer
843 views

2G-4G SIM Cards for Cellular Modules, specifically the new NB-IoT

I'm trying to connect to the NB-IoT network in my city, and I've already gotten the hardware as well as the confirmation that there is an NB-IoT cell tower in my neighborhood. Naturally, there's an ...
5
votes
0answers
85 views

How will network bootstrapping work for headless embedded-SIM IoT devices?

Is there something akin to the Wi-Fi Alliance DPP (Device Provisioning Protocol) in the world of embedded SIM?1 If so, it would be really nice to get an outline of how it would work at a high level. ...
6
votes
0answers
705 views

Mobile network on Android Things SoM?

I want to build an Android Things device that can report its location via mobile network (4G LTE, LTE-M if possible, 3G & 2G). How can I plug such a mobile modem and connect it properly down to ...
8
votes
2answers
2k views

Receiving “ERROR” message from SIM800C module

Most of the commands I send to SIM800C module returns ERROR message to me. For example: If I sent AT+CSQ, it returns an expected response. One of the basics commands that doesn't worked for me is ...
5
votes
0answers
588 views

How to send images using SIM908 GPRS module using LPC2148

I am working on a project in which I have to send an encrypted image via a GSM modem as GPRS or MMS. In this project the transmitter side consists of a PC, ARM LPC2148, and a GSM modem. The receiver ...
10
votes
3answers
195 views

Can I send my GSM IoT device via airpost? [closed]

Is legal to send my GSM IoT device which is powered by a ~2000 mAh (3.7 V) lithium polymer (LiPo) battery via air post? (Or even take it with me inside my suitcase?) Also does it make a difference if ...