Questions tagged [gsm]
GSM is the predominant standard used for 2G cellular networks for mobile devices.
17
questions
1
vote
1
answer
2k
views
Rpi3B+ Python Controlling Multiple SIM800 / SIM900 / SIM7600 Modules
My goal is to control at least 3 SIM800c hats using just one RPi but I'm not quite sure it will work.
How will Rpi reference each hat?
Can each hat make a call of their own?
For reference:
How to ...
- 147
14
votes
5
answers
64k
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 ...
- 325
-1
votes
1
answer
1k
views
Response to a incoming call using python script
I am trying to implement a system using Raspberry-pi and SIM-800 modules. Now I can see incoming calls from my python script, but it can not parse data.
import serial
serialport = serial.Serial("/...
2
votes
2
answers
1k
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 ...
- 123
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'...
- 139
1
vote
1
answer
3k
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)
...
- 183
1
vote
1
answer
4k
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 ...
- 19
8
votes
2
answers
50k
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 ...
- 83
4
votes
1
answer
14k
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, ...
- 173
3
votes
6
answers
25k
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 ...
3
votes
1
answer
254
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 ...
- 83
2
votes
2
answers
2k
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 ...
- 233
1
vote
0
answers
193
views
How to connect RPi 2B with SM900?
I have a Raspberry Pi 2B and a SM900 module
and I want to make a UART connect with jumpers using raspberry GPIO and the shield pins.
My problem is how could I make it? How to power up the SM900? I ...
- 111
1
vote
0
answers
3k
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 ...
- 111
0
votes
1
answer
336
views
It is possible to stack two different Add-Ons in Raspberry Pi 3?
I need to create a project that has GPRS/GSM and GPS, but there are no products with both functionalities.
I found some Add-Ons that may work but I'm not sure if there is any way to stack both. I know ...
0
votes
2
answers
3k
views
How to Connect Raspberry Pi with GSM sim900a mini rs232
I have connected Raspberry Pi to GSM sim900a mini with the following details:
convertor max3232 used
DB9-2 sim900a connected to DB9-3 max3232
DB9-3 sim900a connected to DB9-2 max3232
tx (raspberry) ...
- 11
0
votes
1
answer
2k
views
Waveshare GSM/GPRS/GNSS HAT not connecting to Cellular network
I have this HAT i bought for a pi project I am working on. I get the device to power on, I can connect via USB from PC, and can connect from pi too.
However, the NET LED just blinks every second, ...
- 103