Questions tagged [sim800]

Question 1

So I am working on an Arduino project and have trouble communicating over UART. I have a SIM7600G-H 4G Module from Waveshare and hooked it up to an Arduino Nano ESP32. The connections are as follows: ...

Question 2

I am using a SIM868 module with an Arduino Mega, where the SIM868 is connected to Serial1. After establishing a TCP connection, I need to send the following byte stream: {0x60, 0x1A, 0x9D, 0x01, 0x00, ...

Question 3

I have troubles with powering my SIM800L module. When it was powered from Arduino board using LM2596 DC/DC step-down converter (which is used to lessen voltage to 4.1V), the module restarted every 10 ...

Question 4

SIMM800L connected to Arduino UNO doesn't respond to AT command. The serial monitor stops at "initializing..." the LED blinks every 3 seconds VDD --> connected to 5v of the Arduino uno ...

Question 5

I can't validate an AT command. Would anyone have any suggestions as to what I might be doing wrong? It should be printing "Sending successful! or "Sending failed!", but it doesn't show ...

Question 6

I am using the sim800l gsm module with nodemcu esp8266 and comunicating with it using AT+ commands. The module is working correctly but I am trying to use the command AT+CLCC to get all the current ...

Question 7

My SIM800L doesn't respond to AT commands. The serial monitor is simply blank. And the led blinks every 3 seconds which means it is connected to a network I power it through an LM2596 buck down ...

Question 8

I have so many commands that i need help to setup my SIM800L module. Tutorials i have seen so far involves the messages going directly to the mCu this is problematic for me because if the mCU is ...

Question 9

I have a sim800l module connected to the Rpi pico hardware UART /* SIM800 RPi Pico 5v *External 2A 5v supply* GND GND VDD 3v3 TXD GP1 RXD GP0 */ ...

Question 10

So, I'm trying to send data from ESP boards- 32 and 8266 using sim800l module to firebase. But I'm getting HTTP not connected error. I tried to search web but it seems that firebase changed something ...

Question 11

I am trying to do a small project with SIM800L with Wemos d1 mini. It is a DTMF based project. The problem here is, every time I make a call the d1 mini is getting reset. This is my first project with ...

Question 12

I've bought such on Amazon. My main problem is that it stays in 1sec-blink, meaning it can't registrer cellular network. First I tried with all anntennas possiblities (one of each, both, none) - ...

Question 13

I am using ESP32 and SIM800L for my project. The SIM800L does support SSL, TLS 1.0, and TLS 1.1. But web servers nowadays usually support only TLS 1.2 and 1.3. I heard, that the ESP32 HTTPS client can ...

Question 14

I am using esp32 CAM by Arduino IDE and send an image file by ftp using SIM800l GSM/GPRS module to a server and every thing is ok . I can perform http request also and read some data from a website ...

Question 15

Hey Arduino enthusiasts :) I have purchased a LilyGo T-Call board. Which has a Esp32 processor and a SIM800L GSM module. For my project i want to send location data over the 2G cellular network. I am ...

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Questions tagged [sim800]

Missing data when communicating over UART

How to send 0x1A as data via TCP on SIM8xx?

Is my SIM800L module burned?

SIM800L is unresponsive to AT commands

AT command validation does not appear on the serial monitor

sim800l gsm module response isn't completed

Sim800l doesn't respond to AT commands

How to set SIM800L to save messages to memory and reading them

Reply from the SIM800l module is being cut short

ESP Sim800l Firebase

wemos d1 mini keeps resetting while using SIM800L

SIM800L stays in 1sec-blink-state

ESP32 - SIM800 - HTTPS lwIP

sim800l ftp error after http request

Getting location working on SIM800L with TinyGSM?

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