Questions tagged [gsm]

GSM is the predominant standard used for 2G cellular networks for mobile devices.

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11
votes
5answers
42k views

How do I reset a USB device using a script?

I have a USB GSM modem that does not alwasys work property (Huawei E367u-2) Sometimes it gets reset (USB device disconnect/reconnect in logs) and when it comes back up, it's has different ttyUSB ...
8
votes
2answers
48k views

Sending and receiving SMS via a huawei 3g Dongle E220

I have a Huawei E220 3G dongle. I have set it up with my Raspberry Pi to connect to the internet by executing the sakis3g script. Now I want to send and receive SMS to and from Raspberry pi via the 3g ...
6
votes
1answer
10k views

Is there a way to attach multiple serial port devices to a single raspberry pi?

I have three separate devices that all need access to a data serial port on the pi. My devices are an accelerometer, a GPS unit, and a GMS cell service chip. I've found tutorials on how to attach ...
5
votes
7answers
3k views

Remote Control a Raspberry Pi (currently behind a restricted wifi network)

I build a vending machine, which will be behind different Wifi networks in malls. I cannot influence any configuration of the wifi network. For the regular usage the vending machine uses the internet ...
5
votes
2answers
467 views

Which GSM modules can be used with a raspberry pi?

What opportunities exists to connect a GSM module to a Raspberry PI? Which GSM modules are supported or can configured with little effort? What software was used to dial and connect to a GSM Network?
5
votes
2answers
164 views

Gather data in rural areas

I am building a prototype with temperature and humidity sensors for rural areas and I am trying to determine which is the best way to gather data, since Internet may not be available (no WiFi). I am ...
4
votes
1answer
12k views

Pi to act as GSM voice phone

I won't know for certain until I've implemented it, but I've marked ppumkin's answer as The Answer. I will have a Huawei 3G (or GSM) dongle attached to my raspberry pi. I haven't purchased it yet, ...
4
votes
1answer
12k views

How to use internet using PPPD and SIM800 GSM addon?

Trying to use this hat to get internet access on a Pi 2. Followed this tutorial. But, I can't seem to get it to work. What's weird (to me), is if I'm connected to the LAN through ethernet, I get ...
3
votes
2answers
166 views

How can Rpi connect to a GSM Module and send SMS messages?

This is my GSM Module: Is anyone familiar on how to connect this to my Raspberry Pi 3? Is still all I need or I have something missing?
3
votes
3answers
14k views

How to connect GSM SIM800L with RaspberryPi?

I can find a lot of search results for connecting the SIM800L with arduinos, quite a few specs, some answers (1, 2, 3); but what i can't find is how to connect this GSM module to a Raspberry Pi B+ 1.2....
3
votes
1answer
3k views

How to start communication between pi and GSM add-on V2.0

I have mounted on the GSM add-on v2.0(sim 800) on the pi. I have read the AT commands manual but don't know how to initialize the serial connection between both of them till the point AT commands have ...
3
votes
1answer
2k views

Sim800 not responding to AT commands

I have a Sim800 GSM module hooked up to pins 8 and 10 of the a PI B+ running the latest version of Jessie. I have configured Jessie so that nothing else is using the TXD0 and RXD0 pins. If I connect a ...
3
votes
2answers
3k views

Tether Android Phone to Raspberry Pi (for MMS/SMS)

I recently got a RPI coming from the land of Arduino, and I was wondering as I've been searching Google for this has anyone found a way to tether their phone to their Pi. I'm looking to use my phone ...
3
votes
1answer
218 views

3G modem connects and ping is working, can't access web

Huawei E369 3G modem connected to RPi3 Model A+ and managed by NetworkManager cli: connects allows for pinging websites has working DNS But does not allow for performing any http requests using CURL ...
3
votes
0answers
124 views

Automate routing metric with multiple interfaces

I have a RPi with 3 interfaces: eth0 - standard ethernet eth1 - GSM modem wlan0 - WiFi How can I automatically prioritise the interface that has access to the internet (eg. I can ping 8.8.8.8 or ...
2
votes
1answer
194 views

SMS Gateway project using ZTE MF920V 4G MiFi modem

For a personal project, I'd like to use an MF920V modem. It's a mobile 4G modem made by ZTE. (Not to be confused with USB dongles). The idea is to code an api with Python or Nodejs to remote control ...
2
votes
1answer
1k views

Some hardware for multiple SIM cards SMS sending

I need some hardware for multiple SIM cards SMS sending. Preferably 200 sim cards. I would use Linux and some development boards like Raspberry pi etc. I have used raspberry with a USB dongle. Please ...
2
votes
1answer
2k views

GPS + GPRS in Raspberry Pi 3 Model B

I'm a newbie on what regards to electronic projects, but I will like to set up a GPS tracker to transmit coordinates over a GPRS internet connection (3G or so). I found some Add-Ons that may work but ...
2
votes
1answer
2k views

Using Mobile WiFi Router as GSM Modem

right now I am kind of digging into the topic of using the RPi to read/write SMS and if possible use it make/receive Phone calls. I have this Router (Huawei E5786), Model E5786s-32a. It seams to ...
2
votes
2answers
2k views

No communication between GPRS module RaspberryPi Zero serial GPIO ports

I am trying to use my RaspberryPi Zero to communicate with an A6 GPRS module (http://www.inkocean.in/gprs-a6-module-sms-board-gsm-gprs-wireless-data-transmission-over-sim900a) Drawing of physical ...
2
votes
0answers
2k views

Using Raspberry Pi with Arduino GSM/GPRS Shield

Raspberry Pi Model B GEEETECH Arduino GPRS Shield V1.0 (bought from: bit.ly/1G0KYR7) ^ Similar somewhat to: Seeed's GPRS Shield V1.0 | Link: seeedstudio.com/wiki/GPRS_Shield_V1.0 (has more ...
2
votes
0answers
139 views

Test connectivity of a Interface [closed]

I have a raspberry Pi with three interfaces eth0 (Ethernet), wlan0 (WiFi), and wwan0 (via a GSM modem) How can I test if an Internet connection is available via a certain interface? e.g. is my GSM(...
2
votes
1answer
1k views

SIM800 GSM Module To Raspberry Pi UART Serial Communication Problem

I am new to Raspberry Pi Zero and I want to connect it with a GSM module for GPRS connectivity. I bought the SIM800A GSM module but its LED is not even blinking one single time. I am able to turn on ...
1
vote
2answers
91 views

Running as a Web Server

I have a RPI 4. I am running buster os I have created a web serer. I use nginx to handle connections If I access it via my private network it works well. If I now use a GSM modem on-board my rpi) ...
1
vote
2answers
2k views

Can RasPi run GNU Radio and OpenBTS?

I just wonder if anyone has managed to get the RasPi running GR and OpenBTS without choking? The RP does not have a strong Floating points support and the amount of memory available to the ...
1
vote
1answer
59 views

SIM900A with Raspberry Pi 3 Weird Error and Behaviour

I am working on integrating Sim900a on Rpi3B. As usual connecting to TX->Rx, Rx->Tx (GPIO14, GPIO15 in Rpi) - following diagram from this link: How do I connect GSM SIM 900A to a Raspberry Pi 3? When ...
1
vote
1answer
65 views

Why can't I hear the sounds when making a call?

I was able to make calls using my RPI 3 model B+, Huawei E153 GSM Modem, and minicom. I can see that the cellphone I'm calling was able to answer my call (from my Pi). I plugged in my headphones to ...
1
vote
5answers
16k views

How do I connect GSM SIM 900A to a Raspberry Pi 3?

I want to connect the GSM SIM 900A to a Raspberry Pi 3 but I don't where the problem is. I used this configuration: https://qph.fs.quoracdn.net/main-qimg-c124f9e741afd438969e869e52d0df6b Then I ...
1
vote
1answer
2k views

Sim900 arduino shield on Raspberry

Just bought this GSM module that is suppose to support raspberry pi but i cant seem to find any wire up tutorial. https://www.ebay.com/itm/253162539156 Can someone give a help? btw: i'm looking for ...
1
vote
1answer
1k views

Serial Communication in Raspberry pi 3 B+

I want to communicate between Raspberry pi 3 B+ and GSM GPRS A6. I tried and I am unable to send data to GPRS Module from Raspberry pi. Now, I know that GPIO serial port is disabled by default in ...
1
vote
1answer
1k views

Internet access with SIM900A very slow on Raspberry Pi

I assume that I'll need a SIM Card Atm I'm using this SIM9000A module connecting it at RXD/TXD pins and establishing ppp connection, however, it doesn't work very well, it takes about 5~10 seconds to ...
1
vote
1answer
12k views

connect Raspberry pi 3 to internet via GSM module

I have a GSM module sim900A. How i could connect my pi to internet via that module. this module is connected to usb port and i am able to send sms from it. Now kindly help me to connect internet via ...
1
vote
1answer
2k views

Need help with interfacing SIM 900A module Python code for RPi 2

I have recently procured a SIM 900A UART module. I am supplying power to the module with +5 and GND of RPi. import serial import RPi.GPIO as GPIO import os, time GPIO.setmode(GPIO.BOARD) ...
1
vote
1answer
196 views

When raspberry pi is connected via ethernet cable and wifi?

I recently noticed when I connect my RaspberryPi via Ethernet cable and WiFi, there were two IP addresses assigned to it. Questions: Is it some kind of error or It works that way? Is it possible to ...
1
vote
1answer
1k views

fona 808 gps and raspberry pi

Hardware: Raspberry pi 3 (running debian jessie) Fona 808 GSM/ GPS module. Having wired up the module to the pi PI FONA808 3.3V to Vio Ground to Ground TX to RX ...
1
vote
3answers
2k views

Raspberry as dialin-server

Want use raspberry in a place where isn't any WiFi, but got GSM coverage. Need connect to the device - e.g. looking for a sort of GSM modem solution what will works as classic old-style modem-based ...
1
vote
1answer
4k views

How to send Data

I get a GSM/GPRS Modem SIM900A Please tell me how to open url like http://abcxyz.com/xyz.html using GPRS?
1
vote
0answers
33 views

Raspberry pi as a cell phone for calling

I am building a device for car security and i am using raspberry pi 4. I want to establish a connection between the people inside the car and the outside. I want to make calls from mobile to raspberry ...
1
vote
0answers
23 views

How to setup the E3531

I seem to went the same path as described in "Connecting Raspberry Pi 3 with Huawei Surfstick 372". Bellow are the details of my case. WHEN on wi-fi The command ip addr show returns: 1: lo: <...
1
vote
1answer
161 views

How can Rpi4B python use USB Serial AT commands to control a 4G/LTE MiFi modem to text SMS?

I have purchased this 4G HAT and I'm using it with this module in a raspberry 4. I use the USB connection. I installed a ppp connection and everything is working correctly. My problem is: how do I ...
1
vote
0answers
26 views

Why are my AT commands inconsistent?

Devices: RPi3B+, USB to TTL CH340, SIM800C GSM module Here are the connection between the USB to TTL and GSM module respectively 5V-VCC, TxD-RxD, RxD-TxD, GND-GND Then I attach this USB to TTL to ...
1
vote
1answer
54 views

GSM module serial is spamming messages on the serial port

I am using the GSM/GPRS/GNSS HAT for raspberry pi zero and after running a simple script import serial import os, time # Enable Serial Communication port = serial.Serial("/dev/ttyAMA0", baudrate=...
1
vote
0answers
700 views

SIM7600 4G HAT Rpi3B+ Setup Problem

I am trying to get a SIM7600E-H-4G-HAT running on my Raspberry Pi 3B+, but it is not working. Here is what I've done so far: Inserted my SIM-Card, connected the antenna to Main, connected the entire ...
1
vote
1answer
461 views

Raspberry Pi 3 + USB data modem as a Wi-Fi Router

I have a USB data modem (Huawei E3131) and a RaspberryPi 3B+. I would like to use the Pi as a Wi-Fi hotspot. Pi connects to the internet via USB data modem and creates hotpsot for other devices. So, I'...
1
vote
1answer
596 views

How to connect GSM module to Raspberry PI3 and also using Bluetooth of Raspberry PI3

I want to use Bluetooth of Raspberry Pi3 and also I want to Connect GSM module sim800l to Raspberry Pi3 ,in this instruction Bluetooth will be disable , what is the the best way to use both of them? ...
1
vote
0answers
267 views

what is causing my error 3 for sending SMS from GSM module

I have a Raspberry Pi 3 running Raspbian Stretch I've connected it to an Elemnt Engineerz Guild SIM900a GSM modem via the GPIO. I can't get it to send an SMS I connected gnd and 5v to gnd and 5v ...
1
vote
0answers
39 views

custom mp3 player/phone for blind person controlled by mini numpad keyboard [closed]

My 86 y.o. father can barely see and can not use ordinary keyboard and touch-screen devices. Also it's hard for him to use modern youth-oriented miniature devices with small keys on them. Obviously, ...
1
vote
0answers
85 views

Incorrect encoding when software flow control is enabled sim808

I have an issue with my sim808 module and its encoding mechanisms when software flow control is enabled. The issue is simply bad encoding of the lowercase w character (baud rate 115200, Data Bits: 8, ...
1
vote
0answers
537 views

Raspberry pi voice encryption over GSM

I'm not expert in RPI, so I need help to make a voice encryption model for calls over GSM. I have lot of questions. So I want to use raspberry pi 3 and Sim900l for GSM. I will need a microphone for ...
1
vote
2answers
658 views

How can I provide my raspberry pi 2 with 3G/4G data?

I'm currently working on a project on my Rpi 2 model B that requires connection to internet through a cellular network via 3G/4G connection. I found some usb modem dongles and some modules, but they ...