1,450 questions
0
votes
0
answers
31
views
Sending SMS using AT-Commands on VB.NET
I'm trying to send SMS messaging through VB.NET using AT-Commands. This is my code below:
Imports System.IO.Ports
Imports System.Runtime.CompilerServices
Public Class Form1
Dim SerialPort1 As New ...
- 1
1
vote
1
answer
66
views
Get current time via AT Cmds and UART
I'm working on a small microcontroller project with the Raspberry Pi pico. Since the Pico doesn't support WiFi I added the ESP8266-01. In MicroPython, I cannot access the sockets or ntptime libraries.
...
- 25
0
votes
0
answers
53
views
Mapping between the serial port number and slot number in SIM Bank(Box)
I need to map the serial port number and slot of sim bank.
My sim bank has 256 slots (8 port, 32 slot ) and connected 8 serial port in every port of box.
How can I get the port number of bank mapped ...
0
votes
1
answer
103
views
Send AT Commands to USB LTE Modem on PC
I'm trying to develop a program that can interact with the a particular SIM network to send & read SMSs and dial USSD codes.
I built a protoype using an old modem (iBall Airways 3G Modem - ...
- 11
0
votes
0
answers
27
views
Connect Portenta H7 with module CAT M1 with AWS
I need some help. I'm trying to connect my Portenta H7 to AWS using the Portenta CAT M1 NB-IoT module with MQTT and AT commands.
I found that the AT^SBNW command should work for this, but I haven't ...
1
vote
1
answer
75
views
AT commands to set LED activity indicators SIM800C not working
I've recently bought a LC SIM800C V3 which is a USB board which looks a bit like this
When plugged in, despite 5V, and connected to network with SIM, I'm not getting any LED activity light show up?
...
- 2,925
1
vote
0
answers
17
views
No response after +STARTUP boot (NINA-w152)
Device model: NINA-w152
I have been stuck on this problem for quite sometime, I have a NINA-w152 module according to the datasheet it has preloaded firmware and after booting up I have received +...
- 11
0
votes
0
answers
45
views
How to get idToken ( Auth key) for firebase with ESP8266 using AT commands
I was trying to connect to firebase using AT commands on ESP8266 (ESP01).
Without authenticated rules I'm able to write to a node.
But with authenticated rules, I'm having a trouble getting Auth Key.
...
- 93
0
votes
0
answers
75
views
SiMCOM7600 can't connect MQTT(S) AWS IOT CORE +CMQTTCONNECT: 0 , 34
+CCERTLIST: "cacert.pem"
+CCERTLIST: "cert.pem"
+CCERTLIST: "keycert.pem"
OK
AT+CSSLCFG="sslversion",0,4
OK
AT+CSSLCFG="authmode",0,2
OK
AT+...
1
vote
0
answers
268
views
Issues Interfacing SIM A7670C Module with ESP32 Using AT Commands
I'm trying to interface a SIM A7670C GSM/GPRS module with an ESP32, but I'm encountering some issues in receiving proper responses using AT commands. Below are the steps I've taken so far:
Direct ...
0
votes
1
answer
85
views
SIM7080G Long connection
I have a SIM7080G module. The connection does not seem constant. Sometimes, in 2 seconds I am connected to the network and sometimes, it will take 10 minutes. I’m wondering if the AT commands I’m ...
- 1
0
votes
0
answers
64
views
AT+CPOL? returns CME ERROR 22 on certain SIM cards
As part of a test in some GSM devices, I'm running AT+CPOL? to read the preferred operator list. It's supposed to then write and delete from that list, but it's failing at the first step of reading ...
- 385
0
votes
0
answers
191
views
What am I doing wrong trying to create MQTTS connection to Azure IoTHub with SIM7670G modem
I am trying to use a T-SIM7670G S3 from LilyGo (https://www.lilygo.cc/products/t-sim-7670g-s3) to connect to an Azure IoTHub, using AT modem commands. I am unable to start the MQTT service, even ...
- 1
1
vote
2
answers
65
views
Esp32 execute AT command from User-defined AT Command
How can I execute other AT command from User-defined AT Command?
For example
at_custom_cmd.c:
static uint8_t at_test_cmd_test(uint8_t *cmd_name)
{
uint8_t buffer[64] = {0};
snprintf((char *)...
- 41
1
vote
0
answers
69
views
Unexpected Behavior When Using Optional Arguments in Function
I'm experiencing an issue with sending AT commands through a serial port in my code. The problem is that when I send the following commands:
while (true) {
thread_sleep_for(5000);
...
user26775248
1
vote
0
answers
59
views
HTTPS request using AT commands on SIM900 fails with 601
I have an Arduino UNO setup with a SIM900 Shield. I want to make http/s requests using AT commands. I can already perform GET requests via http. But i can't get them to work with https. Please help me ...
- 1,190
0
votes
0
answers
23
views
I am having trouble to sending POST requests to the server using AT commands
This is the format for sending an AT command to the server. I have successfully run the GET method.
But I am unable to post the image (POST method) to my server.
1: "AT",
2: "AT+...
- 1
0
votes
0
answers
99
views
USSD Command on 4G module
I have an AirM2M_Air724UG_V301840_LTE_AT module with ^HVER: RDA8910. I'm encountering an error when attempting to send a USSD command. Here are the details of my current status:
AT+CREG? -> +CREG: ...
0
votes
1
answer
87
views
why is sim7600 number from clip different depends on sim card
im trying to setup python script where if someone is calling, it will answer the call depended on if number is allowed. but when call is comming, CLIP service sometimes offer number in like : CLIP: &...
- 11
0
votes
1
answer
107
views
BG95 error after getting GPS can't reconnect to network
I'm encountering an issue with obtaining the GPS location in my application. When I fail to get the GPS location, my error handling mechanism attempts to use LBS commands via Queclocator as a fallback....
- 1
0
votes
0
answers
97
views
How to send binary data containing 0x0D without triggering a carriage return using AT commands
I am using AT Commands to interface with a satellite modem. I need to send bytes of data through this serial connection. My problem is that the AT command is terminated when it finds a carriage return,...
- 65
2
votes
0
answers
44
views
Enable Data-up mode to BLE device, using AT commands
I am developing a UWA project with Visual Studio and C#, using the WIndows.Devices.Bluetooth standard library, which:
Connects to a BLE device
The BLE module embedded into the device is BGX220P
The ...
- 21
2
votes
0
answers
125
views
+CME ERROR: retry operation when trying to set call fowarding
I am encountering an issue with my SIM7600E module. Whenever I try to execute the command "AT+CCFC=4,2" or 'AT+CCFC=0,3,"{number}",129,1', I receive the error message
"+CME ...
0
votes
0
answers
62
views
How to prevent quectel EC25E device Initialize in 2G/3G mood
While working with quectel EC25E device. When i insert sim into the device i found following logs from
minicom -D /dev/ttyUSB0 (Since i have 8 port device and i have inserted sim on port 0)
I found ...
- 2,388
0
votes
1
answer
51
views
How can I manipulate the syntax of an AT command and assign a method value in Python?
print(bytes(npArray))
print(bytes(npArray).hex())
ser.write(b'AT+DTRX=0,2,16,00003f0101007a00\r')
response = ser.read(100)
print(response.decode())
I have the above snippet in Python, which delivers ...
- 11
-1
votes
1
answer
349
views
I got AT+CREG? +CREG: 0,0 OK response and at+cops? +COPS: 0 OK Can anyone suggest what is the error occured here
I got AT+CREG?
+CREG: 0,0
OK
response and
at+cops?
+COPS: 0
OK
Can anyone suggest what is the error occured here
The gsm module I have used here is simcom7070g
I got AT+CREG?
+CREG: 0,2
OK
response ...
0
votes
0
answers
399
views
Retrieve SMS from a SIM card in SIM7600G-H 4G HAT in Python
Update: I changed timeout=1 to timeout=5 and once the script started to run, sent a message to the SIM card immediately. Then I got all the messages. When I restarted the Pi and switched timeout=1, ...
- 1
1
vote
1
answer
171
views
How to know the access condition of EF_MSISDN in SIM card?
I am connected to the phone (USB Debug mode, plus enabling 3GPP AT commands). I need to write my own MSISDN in the SIM. I managed to do it in Physical SIM, but for the eSIM I got an error. I suspect ...
- 13
0
votes
0
answers
66
views
Initialize phone call from Windows 10 with paired Bluetooth android phone
I have read multiple posts suggested at the beginning of the question, but I haven't found the answer there.
I use Windows 10 Professional and have paired my Android phone (Samsung Galaxy) via ...
- 958
0
votes
0
answers
325
views
Unknown error sending SMS with SimCom SIM7600 module
I need to send SMS message with the SIM7600 module. When I tried some weeks ago, the module was able to send message normally, but from yesterday the module answer with "+CMS ERROR: Unknown error&...
- 1
0
votes
0
answers
36
views
Is there an alternative to "AT+CUSD=2" in nokia
I am writing a c# application which I use SerialPort and AT COMMAND, I am stuck in USSD respense and I can't cancel it because I'm using nokia 5130 as gsm modem which it doesn't have the cancel ...
0
votes
0
answers
47
views
SIMCOM 7600G-Pcie Audio Writing Blocked if Data written when call ends
I just wrote a C# application that waits for a call and picks up the call from the SIMCOM 7600g-Mini pcie module.
I have also connected to the Audio USB Port that is also available when connected, and ...
0
votes
0
answers
43
views
How can I set my MSISDN in esim as CPBS is empty?
I use to set MSISDN for physical SIM card by
AT
OK
?
+CPBS: "SM",0,500
AT+CPBS="ON"
AT+CPBS?
+CPBS: "ON",0,3
OK
AT+CPBR=1
OK
AT+CPBW=,"+912345678"
OK
AT+CNUM
+...
- 13
-1
votes
1
answer
57
views
Problem getting ESP01 to MySQL with AT commands
My setup consists of an arduino MEGA, an ESP8266-01 wifi module and an mq4 sensor whose values I want to store in a database, I have set up MySQL and can send values via apache like http://192.168.1.6/...
- 1
1
vote
1
answer
117
views
I can't send AT command to my backend server from ESP-01. Error 400 Bad Request
Hi I have been trying to use stm and esp-01 and cominicate with firebase with backend server. my backend server js is this:
const express = require('express');
const app = express();
const ...
- 11
1
vote
0
answers
122
views
How to read this type of data from a UART in the proper way
I just can not find a proper solution for this types of data returns from a Quectel device. There is an echo and CRLFanswerCRLF template.
There are blanks between data and fills buffer:
I tried IDLE ...
- 11
1
vote
0
answers
67
views
Garbage values when reading from a sim7600 module using jetson nano
I've got a python3 script to run on a jetson nano board and to that board, there's a sim7600 module connected. All the connections are being made correctly, and the voltages are what's expected. The ...
0
votes
1
answer
143
views
I'm Trying to Connect Internet with ESP32 using Cavlii C16Qs. but ESP32 is not Getting Internet Connectivity
I'm trying OTA Firmware update of ESP32 using Cavlii C16Qs. I'm trying to Connect internet with ESP32 using Cavlii C16Qs. Basically issue is I'm Not getting Internet Connectivity using "AT+...
0
votes
0
answers
259
views
Problem with AT command in new GSM module A7672S
My project is to send data to ThingSpeak server using GSM module. I had successfully send data to server using Sim900 module. Now due to some reason I need to migrate Sim900 to A7672S GSM. Now I am ...
1
vote
1
answer
94
views
Reading multiple blocks from a CoAP block-wise transfer on SIM7080G modem
Problem:
The SIM7080G modem can detect there are multiple blocks in a CoAP response from a server but is only able to read the first block.
AT commands used:
AT+CCOAPINIT
AT+CCOAPURL="coap://coap....
- 31
2
votes
1
answer
96
views
Increase CoAP receive package size beyond 579 bytes on SIM7080G modem
Problem:
The SIM7080G modem is only able to receive a CoAP packet of maximum 579 bytes from a CoAP server (579 bytes total packet size, 566 bytes payload), even though the server sends a larger ...
- 31
1
vote
0
answers
54
views
ESP32 UDP server through AT commandos
I'm using ESP32 C6 with the AT commando server:
--- at+gmr ---
AT version:4.0.0.0(3fe3806 - ESP32C6 - Dec 29 2023 11:10:21)
SDK version:v5.1.2-dirty
compile time(89040be7):Jan 2 2024 05:53:07
Bin ...
- 65
0
votes
0
answers
54
views
HTTP request pythonanywhere flask server using esp8266 AT commands
I have an esp8266 connected to wifi and I want it to send/get data from a Flask webserver hosted by eu.pythonanywhere.com.
I am using the Arduino IDE to communicate with the esp8266 via a USB to UART ...
- 33
0
votes
0
answers
45
views
AT Commands HTTP request to JSON source with status 200 but response that I get is incomplete (just some part of Response I received)
AT Commands HTTP request to JSON source with status 200 but response that I get is incomplete (just some part of Response I received).
#include <SoftwareSerial.h>
#define RX_PIN 2
#define ...
0
votes
0
answers
26
views
API ID 0X17. Send an AT Command message from Xbee connected to arduino to a slave Xbee
I friends
I have a problem with ID 0x17. In my case, I tested to send an AT command from an Xbee coordinator (connected to an arduino mega) to a final Xbee just to change the node identification (NI), ...
0
votes
0
answers
141
views
GSM and LTE-M connection with SIM7070G for MQTT data transmission
I am working on a tracker project using the SIM7070G modem from SIMCOM. The objective is to maximize the connection by working with both LTE-M and GSM, aiming to send location data via MQTT.
I have ...
0
votes
0
answers
64
views
SIM7000X establish AWS MQTT via AT command issue
Here are the specific details of my configuration and the issue at hand:
Device: SIM7000X module
Connectivity: I am using SIM7000X to connect to AWS IoT Core for MQTT communication.
Configuration: I ...
0
votes
0
answers
55
views
how to make a clear voice call using sim900
anyone can help me about sim900 module?, i can make a call to a mobile phone but my problem is on the mobile side, if i talk on the mobile, i can hear back my voice just like an echo of what i say... ...
- 11
1
vote
0
answers
58
views
Cannot deserialize JSON object via PHP script on AT commands from Arduino Uno/ESP8266 to connect to mySQL
I've recently started working on a project trying to upload sensor data from my Arduino Uno serially connected to an ESP8266, to a mySQL server. I can't seem to figure out what's incorrect about my ...
1
vote
1
answer
89
views
Sending Multi part message with AT Commands & PDU Mode Node.js
Im attempting to send a multi part message with at commands, single part works fine and so do special characters but when its multi part so more than 160 characters it says its sent but nothing is ...
