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Questions tagged [modem]

For questions regarding interfacing to and using a modem with a Raspberry Pi.

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Increase LTE bandwidth [closed]

Is there a way to double internet bandwidth using two LTE modems? I have two Quectel modems with two SIM cards from two different providers plugged into my Raspberry Pi, and I'm wondering if it's ...
kwsoft's user avatar
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0 answers
17 views

Video Streaming with GSM/GPRS SIM800 Modules

I want to stream video footage collected from a camera to a webserver using a Raspberry Pi and internet without the use of Wireless LAN. I was originally thinking of just connecting a USB modem with a ...
William's user avatar
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35 views

Rasbperry Pi 5 DNS fails with cellular module

I have a Raspberry Pi 5 with the latest OS build (Kernel 6.6.20+rpt-rpi-2712). I have a Quectel EC25 cellular module hat plugged into the pi using QMI mode. The modem connects successfully to the ...
PhilBot's user avatar
  • 71
0 votes
2 answers
21 views

Pi zero iot hat 3G 4g modem

Firstly I’ve looked everywhere and tried and tried to no avail. I’ve set up the iot bit hat: https://www.instructables.com/PiAnyWhere-4G-LTE-Hat-for-the-Raspberry-Pi/ To hopefully initiate the pi ...
Rik's user avatar
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1 vote
1 answer
82 views

Will the Netgear LM1200 4G LTE Modem work with the Raspberry Pi 4?

I'm working on a robot whose processing is all done in the cloud, and the raspberry pi only sends/receives/executes orders. For this reason, a way to have internet anywhere is needed, and I figured ...
Mito's user avatar
  • 129
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0 answers
673 views

Access point with systemd-networkd

I'm trying to configure systemd-networkd with wlan1 as access point and wlan0 as client. However I don't see the hotspot appear. (I'm using a USB dongle for wlan1) Here is some of my configurations ...
Steph's user avatar
  • 9
-1 votes
1 answer
267 views

Connect to the raspberry pi over SSH when using the raspberry as a hotspot

I configured my raspberry pi as an access point and I connected my laptop to the wifi network of the pi. However I was not able to reach the pi PING : 56 data bytes ping: sendto: No route to host ...
Steph's user avatar
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134 views

Huawei Stick not associated with wwan0

I have a problem with Huawei LTE stick: MS2372h-153 I have two versions of this stick: Vodafone IoT branded Non-branded Using the non-branded stick, everything works as expected. I plug it into my ...
Slev1n's user avatar
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0 answers
80 views

Does the RPi Zero suffer performance issues with cellular modems?

Sixfab's Raspberry Pi 4G/LTE Cellular Modem Kit claims that it works with every 40-pin Pi: Fully compatible with Raspberry Pi models that have the 40-pin GPIO header (4, 3, 2, A+). Raspberry Pi Zero ...
Joe D's user avatar
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1 vote
1 answer
310 views

Power issue: USB 4G Modem via USB Hub

I am hoping to get some advice, below is the hardware I am using, Raspberry Pi Zero 1.7W (Raspbian OS Lite - 2022 Kernel) Ethernet / USB HUB HAT (B) Hologram Nova 4G Modem Initial power tests, I see ...
Beaker's user avatar
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1 answer
470 views

How to install LTE USB Huawei EE3372 on Raspberry pi zero?

HELP ! I never worked on Rasperry before, only arduino. Been trying for some time now to install LTE USB modem, Huawei EE3372 on a Raspberry pi zero. Found several instructions on the internet, some ...
Petar Mareš's user avatar
-1 votes
1 answer
413 views

AT- serial port communication with USB modem breaks ([Errno 32] Broken pipe) after upgrading to Stretch or Buster

Good day, I hope you guys are good. My name is Francis From Nigeria. I have been using raspberry for a while. I had to upgrade from Jessie to Stretch because my favorite raspberry pi 3B model is ...
ufumes's user avatar
  • 24
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0 answers
138 views

Trying to connect my RaspberryPi4 to a Bluetooth modem and have it trusted and paired, but get error can't connect RFCOMM socket

I have a RaspberryPi 4 and am trying to connect it to a Bluetooth modem. I have paired and trusted the modem, but when I try to connect to the modem I get the message that the connection failed (from ...
DinghySailor's user avatar
0 votes
1 answer
500 views

LTE-HAT GPIO SIM7600

I´m able to connect to the internet via the SIM7600 4G HAT modem when it´s connected to USB. Now I´d like to achieve the same without USB but only with the GPIO connection. Somehow the manual (https://...
vlad's user avatar
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1 vote
1 answer
53 views

RPi4 is not detected by the modem after a certain time (ethernet connection)

I try to use a RPi4 B as a server (to setup netxcloud, PiHole, etc). To do this I connect it to the modem via ethernet connection as showed in this picture : At first it works, the RPi is detected as ...
Tchimy's user avatar
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0 answers
35 views

Why does usb enumeration create a bogus device in /dev and how do I get rid of it?

I have a USB modem that sometimes enumerates wrong and creates a false device in /dev. How do I remove that bogus device ? How do I force renumeration without rebooting ? When the modem works ...
NewtownGuy's user avatar
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0 answers
203 views

SIM not detected ! Raspberry Pi connected via a 4g huawei e3370 USB modem using a SIM card

[Updated] I have a 4g huawei e3370 with a rpi 3. I am trying to configure my modeme e3370 but I am getting an error: SIM not inserted. Do you have any idea? Here is my /etc/wvdial.conf : [Dialer ...
naoussa's user avatar
0 votes
1 answer
749 views

Connect with tmux instead of screen

New questioner here! I am able to connect to my device using the following command: screen /dev/tty.usbmodem* 115200 My device is connected to my Mac with a microUSB -> USB cable. Is there a way ...
efthimio's user avatar
  • 113
2 votes
1 answer
1k views

SIM7600 LTE Modem via GPIO

I am building a drone that should connect to LTE internet with waveshares SIM7600 HAT. Every guide I see online for using the HAT as a LTE modem is using a USB connection between the PI and the HAT. ...
Afsdw2's user avatar
  • 21
0 votes
1 answer
1k views

Read binary data from serial port and save in file

I am link modem to pi3 via serial port and configure this port . When i receive data in my python software from serial port and save bytes in file, i note i receive too mutch data , I am receiving ...
Kotaiba Hariri's user avatar
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0 answers
41 views

Write and receive image to embedded modem via Txd and Rxd in Raspberry Pi 3

How can I send and receive image (page) to embedded modem via Txd and Rxd in raspberry pi3 using Python? And how can configure baudrate and flow control using Cts and Rts?
Kotaiba Hariri's user avatar
0 votes
0 answers
286 views

Raspberry Pi 4 network speed drop

I configured my Raspberry Pi 4 to be a wireless and wired router that I can also use in combination with a D-Link DWM-222 USB modem. The problem is that when I connect the Ethernet cable (I am using a ...
fgll44t's user avatar
1 vote
0 answers
41 views

setup pi3 to work with embedded modem through TXD RXD

how can I configure pi3 (GPIO ) connected to embedded modem through (UART Pin 8-Pin 10)TXD RXD? and how can write python code to control with modem?
Same Abazed's user avatar
1 vote
0 answers
1k views

Connect LTE modem to RPi with systemd-networkd networking

I have a rpi3b+ running latest os as headless with everything up to date and I use systemd-networkd for networking on it. I'm trying to connect a LTE usb modem to it for wan access. For that I use ...
user127323's user avatar
0 votes
0 answers
18 views

Using Raspberry Pi to deliver POE to other products through the ethernet port

Scenario is this: Have a raspberry pi being powered through a usb-c adapter. Have a 3g usb modem, that connects the pi to the internet. Have a camera device connected to the ethernet port of the ...
Raf A.'s user avatar
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1 vote
0 answers
106 views

Problems with Huawei me909u521 modem in Raspberry Pi 3 b+

I have the Huawei me909u521 modem attached to RPi 3 b+ via sixfab LTE hat (connected by GPIO). The Rpi is detecting the modem: pi@raspberrypi:~$ lsusb Bus 001 Device 004: ID 12d1:1573 Huawei ...
Nfernandez's user avatar
0 votes
1 answer
1k views

Problem configuring modem on Raspbian

I need to configure the [TRM240 modem][1] to work with a Raspbian system. I followed the procedure reported in the answer [here][2], but the connection isn't working. I attach some screenshots ...
EM90's user avatar
  • 101
0 votes
1 answer
498 views

Share USB modem internet via hotspot to devices

I have Quectel LTE USB Modem connected to Raspberry Pi 3 Model B+ and able to access internet from modem. Now, ifconfig has wwan0 connection with IP. I want to start hotspot on Pi and share the ...
Sundeep Kumar Gorantla's user avatar
0 votes
1 answer
808 views

Connect to internet with Sakis3g when modem establish network connection

RP-beginner here, Background I'm using a shell script called Sakis3g to connect to internet and it works very well (It uses wvdial in the background and sets up a ppp-connection) I want Sakis3g to run ...
parvelmarv's user avatar
0 votes
0 answers
83 views

Huawei Modem port number not showing up

I tried configuring the modem dongle for Raspberry Pi 4 but the port number is not showing up. Under ifconfig I see eth1 I tried looking under dmesg command I can't see anything. I looked for all the ...
christlight's user avatar
2 votes
0 answers
230 views

Set SIM PIN in /etc/network/interfaces?

I've a Huawei E3372 usb modem and works out of box when I connected in my Raspbian Strech. With others Huawei modems I needed vwdial setting up, but with E3372 seems it not use wvdial to up network ...
crossmax's user avatar
  • 303
1 vote
0 answers
488 views

Raspberry Pi Raspbian - check LTE USB modem SIM card phone number

I have LTE USB modem attached to Raspberry Pi 4 with Raspbian installed. LTE modem was configured automatically and Internet connection is up. I don't remember SIM card phone number. How can I check ...
Anton's user avatar
  • 21
2 votes
2 answers
2k 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 ...
Bilel's user avatar
  • 123
1 vote
2 answers
625 views

Raspberry Pi backup 3G USB modem - can't connect

I'm trying to configure 3G USB dongle as backup solution to WiFi. Using Raspberry 4b, latest raspbian in which seems usb 3G dongles automatically converted to modems as I see. So I'm skipping usb-...
Alex_Y's user avatar
  • 111
1 vote
2 answers
2k views

SIM800 UART Serial Corrupted Response Problem

I am adding a SIM800L module to a home burglar alarm system I'm building around a RPi3. I've already encountered, and overcome, the usual power problems, and I can successfully use the module to make ...
ephestione's user avatar
0 votes
0 answers
824 views

Configuring WWan LTE modem (SIM7000a)

Does anyone have any experience hooking up a WWAN? I picked up a SIM7000A and re-activated one of my AT&T hotspot sims to work with it. This particular one is a PCIE card but came with a PCIE to ...
Scott Wood's user avatar
3 votes
0 answers
2k views

setup wifi hotspot with 4G hat [closed]

I have bought a 4G hat for my raspberry pi 3B+ (the sim7600 waveshare for europe) and followed these instructions for setup. It is running the latest version of raspbian and I have internet on the ...
Jarrr's user avatar
  • 31
2 votes
1 answer
2k views

USB modem ppp0 automatic connection improvement

I have a USB modem (Huawei E1552) connected a RPi running Raspbian Stretch. It is connected at remote location that needs persistent internet. For example, for ssh or pushing code remotely. I have ...
Tony Baloney's user avatar
0 votes
0 answers
285 views

ttyusb don't appear in raspberry

I work with a LTE modem. Normally when I plug it, ttyUSB0/ttyUSB1/ttyUSB2/ttyUSB3 appear. Suddenly it stops working and I don't know what happened. Why does it happen? Thank you in advance Update: ...
Nfernandez's user avatar
2 votes
1 answer
2k 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'...
leller's user avatar
  • 139
0 votes
2 answers
208 views

Raspberry Pi share ppp0 via USB

I have the following setup: Raspberry Pi 3 Sixfab 3G/4G Base Shield v2 Queltec UC20 I have connection to the internet over ppp0 interface but now I want to connect the Instantel Micromate sensor to ...
campovski's user avatar
  • 101
1 vote
3 answers
547 views

Reading time off of a cellular modem with python 2.7 and pyserial

TL;DR: I need to read the time off of my Hologram Nova USB cellular modem on /dev/ttyACM0 and update the system clock after the pi restarts. I'd like to do it in Python but it isn't reading the ...
Shrout1's user avatar
  • 142
1 vote
0 answers
784 views

usb_modeswitch error Huwaei E3372 4g Modem

I tried following this tutorial to change mode of my Huwaei E3372 modem https://blog.unixweb.de/usb-stick-lte-telekom-magenta-eins-huawei-e398-modem-raspberry-pi/ System Raspberry 3B+ OS: Raspbian ...
user3622654's user avatar
3 votes
1 answer
573 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 ...
xmichaelx's user avatar
  • 141
0 votes
0 answers
288 views

Unable to access internet in PC when connected to Pi(ppp0) via Ethernet

I am using openhabian. I have managed to get the Pi connected to the internet via the Quectel UC20-G modem after which I get a new interface called ppp0 with IP address 49.225.37.106 as shown below. ...
Beedee's user avatar
  • 11
0 votes
1 answer
93 views

VNC Viewer does not recognize modem ip

What could be the possible cause for me to be able to configure the ppp0 signal from a modem perfectly on my Raspberry Pi, but not being able to access it (the rpi) via VNC via the IP provided by the ...
Caio de Paula Silva's user avatar
1 vote
0 answers
180 views

Rasbperry 4g usb modem + WIFI priority

When i connect raspberry to router by WIFI and plug usb modem - wifi have priority over internet. i need that 3g modem will get internet and have priority over WIFI. but i still can connect by local ...
Vlad Sheludko's user avatar
2 votes
1 answer
276 views

Raspian Lite (3B+) And Huawei modem N3372 Problem

Problem: eth1 has no internet (interface created by modem). usb_modeswitch is installed. But I can ping it Setup: - Raspberry Pi 3 B+ (Raspbian Stretch Lite 2018-11-13 Kernel version:4.14) - Huawei ...
Flaks's user avatar
  • 21
2 votes
0 answers
3k views

Raspberry pi 3 a+ stretch and huawei e3372h-153 port forwarding

At the moment I was able to get internet on my raspberry pi 3a+ with Huawei e3372h-153, a 4G LTE USB-dongle. When I enter address http://192.168.8.1 it gives me a config web page of a dongle. I ...
ekavet's user avatar
  • 33
1 vote
1 answer
192 views

Raspbian and Netgear 779s LTE modem

I've been having trouble the last two days figuring out why my NetGear 779s modem isn't working fine with Raspbian. I installed NetworManager, and did sudo systemctl disable dhcpcd and sudo systemctl ...
clearscreen's user avatar