Stack Overflow
Stack Overflow

Questions tagged [quectel]

Quectel is a manufacturer for 2G/3G/4G cellular modules, often used in M2M and IoT applications.

Quectel is a manufacturer for 2G/3G/4G cellular modules, often used in M2M and IoT applications.

67 questions
1
vote
1 answer

Quectel EG25 modem not connecting with pppd

I am trying to debug a Quectel EG25 modem connection. Signal strength seems all right (I got an external antenna connected): +CSQ: 31,99 SIM card is present and unlocked: +CPIN: READY APN is set right: +CGDCONT:…
remus
  • 2,635
  • 2
  • 21
  • 46
1
vote
1 answer

Yocto image Building fails

currently i'm trying to build a yocto image for a sc20 from quectel and i'm getting this error. Yocto error file msm8990.inc has RECOVERYFS_SIZE_EXT4='268435456' how can i handle this type of issue? here is a complete log ERROR:…
Andres Esteban Puerto Lara
  • 11
  • 2
1
vote
1 answer

IMX6ULL 4G download stalling issue

We have been using IMX6ULL processors along with a Quectel 4G module in our custom made boards. The 4G module can be initialised, brought up and the PPP0 interface can also be initialised which in-turn does provide us with internet connectivity too…
Nitin
  • 11
  • 1
1
vote
1 answer

NB-IoT signal quality query (operator independent)

I'm currently developing an NB-IoT application using Quectel's BC66, however, I'm still trying to decide what operator to use. After a successful connection, I can use the command AT+CSQ or AT+CESQ to find signal quality. But all this is assuming I…
Eduardo Rodrigues
  • 65
  • 6
1
vote
1 answer

There is a problem to connect GCP IoT core with BG96

Before, I succeed to connect AWS IoT Core with BG96(LTE module). And now I'm trying to connect GCP IoT Core with BG96. However, there are some problems. I followed the guideline of IoT Core and downloaded MQTT server certificates(complete Goolge…
phil
  • 21
  • 3
1
vote
0 answers

MC60 HTTP GET REQUEST ISSUE

I am using MC60ca module , I want to use web sockets so for handshaking from my server I have to send a HTTP GET REQUEST. The request is in the form of : “GET HTTP/1.1\r\nHost: echo.websocket.org:80\r\nUpgrade: websocket\r\nConnection:…
Akshit Jain
  • 11
  • 2
1
vote
0 answers

Problem with listing FTP file names on M66 OpenCPU with AT+QFTPNLST

I have a hardware with quectel M66 module. I am also using the module as main processing unit, so the default Opencpu is quite changed. Also there is a watchdog applied to the module. I am trying to open an FTP connection and get the file list on…
tagiyevv
  • 11
  • 3
1
vote
1 answer

Quectel EC20 LTE Module doesnt show me incoming call or sms

I'm using a LTE Module QUECTEL EC20 of this model connected to my Arduino as software Serial monitor and AT Commands directly, I can communicate perfectly with the Module, I get answer OK, Signal, IMEI, and a lot of commands with any problem.…
fabutkovic
  • 63
  • 1
  • 7
1
vote
1 answer

Sending SMS via AT commands using GSM/LTE module responds Ok but no SMS received

I'm attempting to send and receive SMS via my GSM/LTE module (EC21 Quectel) using AT commands in my ubuntu terminal. However, all my messages return OK after being sent but do not reach their respective…
Kathrine F
  • 11
  • 1
1
vote
0 answers

How to get rid of CMS ERROR 2051 in quectel m66

I am working in a gsm shield and sometimes(after 1 week) I get CMS ERROR 2051 while sending SMS. How can i solve this. In data sheet it says ILLEGAL MS What is MS and how is it illegal? Here is my setup before trying to send sms. I am using quectel…
erondem
  • 482
  • 1
  • 11
  • 24
1
vote
2 answers

error when publish data to aws IoT using BG96 and MQTT protocol

I'm trying to publish my data to Amazon web services using BG96 (NB-IoT device that use AT commands) I'm following the official documentation (Quectel) so I configure SSL parameters ( with the command : at+ qsslcfg=...) and start MQTT SSL…
Zou Beir
  • 11
  • 1
  • 4
1
vote
1 answer

BG96 LwM2M Configuration

I am trying to use the already implemented LWM2M protocol on bg96 from Quectel, to create a client and connect it to Leshan server. I know on the firmware release of "BG96MAR02A07M1G" LWM2M protocol is implemented but I am facing problems while…
Abdullah
  • 11
  • 2
0
votes
0 answers

Quectel MC25 Module not giving AT response

I'm using the Quectel MC25 Module with an STM32 for a tracking device. The module works well for a few hours, then stops responding to AT commands and gets stuck. How can I fix this issue? The module should give correct responses of the AT commands…
Nofil
  • 1
  • 1
0
votes
1 answer

minicom is openning port but pyserial is saying 'Device or resource busy''

I want to send a sms message via Quectel EG25-G, I've already connected to LTE with ModemManager I've managed to connect to the device via minicom and I can send AT commands I wanted to use PySerial to send the message, so I created a basic script…
L1RG0
  • 1
  • 1
0
votes
0 answers

QUECTEL EC21 GSM module how to receive data wihtout sending a query?

I can communicate with a web server over HTTP functions like get and post with no problem. The algoritm works like this; I send a query with get Than start to listen If any data received, I read it. I need to if I didnt send any request to server,…
bladekel
  • 13
  • 3
1
2
3 4 5