The SIM800 is a complete Quad-band GSM/GPRS solution in a SMT module which can be embedded in the customer applications. It is the successor of the SIMCom [tag:sim900].
Use this tag for questions related to SIMCom 800 series modules.
Questions tagged [sim800]
145 questions
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Why do not you run low in sleep mode?
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I work with the Sim808 module I'm going to Sleep, but it does not go down !!!!! With the Sim800, I'm going to sleep! I use the AT + CSCLK = 1 command Streaming on SIM808 Before 26 mAh later 26 mA Streaming on SIM800 Before 16 mAh later…
Ali Navidy
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2 answers
SIM800L HTTP communication with web server
I'm using a SIM800L module and Arduino Uno to communicate with a web server. I have a sensor read by the Arduino. I want to store the sensor's value to my database.
On my web server I have a PHP page that saves data to the database. I'm using the…
Alireza Izadimehr
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How can I send data to a web server and read that by sim800 or sim900?
I've heard that there are two methods to do that, GET and POST and I know the differences like in GET method we send data in URL and in POST method we do that in some rules. But I don't know how to do that with sim800 or sim900 and how to configure…
Majid Roustaei
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Atmega 2560 UART serial data limit
Hello I am working atmega 2560 with SIM800L. I require to extract data of 100KB from server but i am able achieve only 5KB (RAM constraints) but I have SD card to store the data.
I am trying to implement it using circular buffer. Can anyone guide me…
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SIM800 does not take commands, I receive echos of commands
I am trying to get SIM800l to send text messages and make calls with STM32F103.
Problem is, I only receive echoes of my commands, if I send "AT" using uart, I get A, T as an echo. But not OK, as it should respond. My power supply is good and I am…
Урош Милошевић
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1 answer
TTGO ESP32 + GSM 800l AT Commands
Good day all
I'm working on a project that takes sensor data and sends it to an online database using HTTP requests.Im ussing the TTGO esp32 sim 800 board, Everything works fine and all the data is stored in my online database the problem is that I…
Hansie
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Cannot set receiver phone number using AT+CMGS="XXXXXXXXX" returns error 325
I am using SIM808 to send SMS to a perticuar number. But when trying to set the number using AT+CMGS=XXXXXXX returns +CMS ERROR:325. I have set the AT+CSCS to GSM but still no luck.The following is the code:
import serial
import os, time
# Enable…
Viswateja Vengala
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2 answers
BT on SIM800 not working
I cannot get Bluetooth to work on SIM800. AT+GSV command gives following response: SIMCOM_Ltd.
SIMCOM_SIM800
Rev: 1308B02SIM800M64_BT.
Any AT command I type (eg AT_BTSTATUS=?) gives ERROR. What could be the problem?
A M M
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How to send an SMS in a language other than English with module SIM800L?
How to send a text message in Polish, e.g. with the following text "Cześć", where the characters are from outside the GSM alphabet? I have a TTGO T-Call board that has a SIM800L module from SIMCOM. I have tried using various AT commands, but nothing…
Dawid Irzyk
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After using strstr() the substring also transmitted via uart
I was trying UART using STM32F407V6T6 and CubeMx.
As I have posted some problems with strstr() function. Here is some new problems.
Here is the code:
char rxBuff[10];
int main(void)
{
HAL_Init();
SystemClock_Config();
MX_GPIO_Init();
…
sourav maity
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