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Questions tagged [at-commands]

AT commands are used to control MODEMs, such as GSM/GPRS/bluetooth modules.

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0 answers
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AT Commands for SARA-R510M8S (SARA-R5 evaluation kit)

I am using the SARA-R5 development board, specifically the SARA-R510M8S model (LTE + GNSS), with an Arduino Nano Every. My goal is to determine the GPS position and send its location via SMS, aiming ...
Aleat's user avatar
  • 179
0 votes
0 answers
21 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 ...
Santiago Mercante's user avatar
0 votes
1 answer
51 views

Why does a PB-02 ignore a "AT+NAME=abc123"?

When I connect to a PB-02 via UART(8data bits, no parity, 1 stop bit) it does not execute all AT commands. These work fine: AT\r\n results in ...
RRIDDICC's user avatar
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0 answers
62 views

SIM7080G MFF2 SIM not detected

I have designed and assembled a custom PCB with ESP32 and SIM7080G LTE-M modem, basically an IoT weather station. SIM7080G datasheet Everything works fine except for a very important part that renders ...
Reicken Back's user avatar
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0 answers
75 views

Managing AT Commands for SIM COM A7672S SIM Module - Header Appending Issue

I'm currently working with the SIM COM A7672S SIM module to download a file in chunks from an Amazon S3 server. I am using the AT command 'AT+HTTPPARA="USERDATA","Range: bytes=0-1023&...
cyber122010's user avatar
1 vote
0 answers
21 views

RF verification for SIMCOM7070 modem

We have a custom board featuring a SIM7070 modem with two SMA connectors for GSM and GPS. After fabrication, the boards are passed through some basic tests to check if the device can operate as ...
BvLeeuwen's user avatar
1 vote
0 answers
25 views

Using HM-10 module vs CC2540/1

Currently I'm trying to buy a BLE module, and the HM-10 module seems to be a module built around the CC2540 or CC2541 chips. The HM-10 module is a module that works whit UART and AT-commands, I want ...
Electromosaw's user avatar
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0 answers
34 views

How can I make a basic BlueTooth communication between a cellphone and MXCHIP EMC3080-P module?

I'm trying to use the EMC3080-P module from MXCHIP, because it's used in some applications from ST, the company where I had the microcontroller I'm using (for example, the B-U585I-IOT02A discovery kit ...
santiago deliotte's user avatar
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0 answers
30 views

Why am I getting incomplete geolocation data for long periods of time using SIM7070g?

I'm facing a problem while working on a tracking application using the SIM7070G module for GNSS data. The application alternates between sending data and retrieving GNSS coordinates due to SIM7070G ...
Santiago Mercante's user avatar
0 votes
1 answer
561 views

How to connect two ESP32 via built-in Bluetooth?

I want to connect two ESP32 dev boards via their built-in Bluetooth to share data between them. (e.g. a remote control car and a controller) I used to connect two HC-05 Bluetooth modules with the help ...
Yiming Designer's user avatar
0 votes
1 answer
48 views

AT COMMAND's GC433-TC016 No Response

My question consurns AT Commands using a Serial Port Wireless Device. ( SILICONRA - microchip ) GC433-TC016. I can transmit and receive Serial Port transmissions to Remote units. ( GC433-TC016) I ...
user66377's user avatar
  • 570
1 vote
2 answers
2k views

Why can't ESP32 read all of serial incoming data?

I am trying to change configration settings of E70 LoRa module. It works with AT commands. Everything is working normally, but I can't read all incoming data; after the "09:25:01.008 -> TFOCFG ...
mehmet's user avatar
  • 1,139
2 votes
0 answers
70 views

SIM900A: Network depersonalization required

I have made experience with sim 800l, it works like a charm. Now I got a new SIM900A module, interferencing it with (RP over python), AT command returns ok, and other basic AT commands, so not the ...
Erkman's user avatar
  • 21
0 votes
1 answer
82 views

SIM808 emits random numbers

I am programing a Maduino M0 board with a SIM808 GSM/GPRS/GPS module on it using the Arduino IDE. Periodically, after reprogramming the board a few times, the SIM808 no longer responds to any serial ...
SharpCarel's user avatar
1 vote
1 answer
127 views

Problem with GPS old location [closed]

I wrote a GPS driver which sends and reads AT commands. I send the AT+CGPS=1,1 command to get the GPS location and if there is no answer I send ...
aguero's user avatar
  • 21

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