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Even when I tried sending sms through modem it is giving error on command (at+cmgs). I'm really stuck here and I can not seem to understand what is causing this problem You migh be aware that sending/receiving gsm data through modems is a process that comprises a set of commands in both sides which have to be called in the correct
Hi all.. i am trying to make a project using gsm Module and 89S52 microcontroller to send messages. MCU works on 5V, but my gsm module works only on 3.3V - 4.2V (4.0 recommend by datasheet). How can i convert 5V to get 4V to power my gsm module. My MCU consumes hardly 100 to 150 mA of current but for gsm (...)
Hi there, I am working on a project. Its a tracker device. I have used a gps and gsm module sim900. And now I Got the location and I can send location to another mobile. But I want to know, how can I send and store the location data to a server? I don't know what to do. Someone please explain me the block diagram. I am a new guy to this departme
Hi Guys, I have an arduino UNO and have some sensors, I have made a database in mysql, how can I send the data from sensors to the table's columns of thedatabase via GRPS connexion of M95 quectel? any code exemples will be appreciate very much!
Hello, i am using SIM800 gsm modem to interface with PIC18F4550 Controller for the sending and receiving msg/call. But here, i am unable to receive simple AT command also, so plz help me for the Code. For the reference i am pasting my code plz help me out asap. Thanks in advance. #include #include "uart.h" #i
HI, i am interfacing a gsm module to a micro controller on USB. I could detect the device and could successfully connect the device to host and have established 3 pipes interrupt ,Bulk in and bulk out. i could send the AT commands to the module and the module is transmitting and receiving the data properly. since USB works on a polling mechanism
Hai, I am new to http server communication with gsm module, I am using Telit GL 865 dual , I need to send data to http server continuesly , for that what can i do? Please help
Better to use WIFI Module ESP8266 instead of gsm for this application.
I design a circuit of Modbus and gsm with two different regulators. Modbus need voltage >4.8 and gsm need 4 volt so i used 7805 (1Amp) with Max485 and atmega8 converter and LM2596 (3Amps) Adjustable regulator to power up gsm board . and input supply is 12V/2A adapter. when i use this circuit to read data from inverter and (...)
Hi, You need two "partners" to communicate with each other. Letīs call them "A" and "B". Inbetween there is the gsm station. Usually it is connected to the internet. (installed by the gsm provider. Thats where a gsm mobile phone connects to) And you need a gsm modem "A" <--> gsm_modem <--> (...)
I managed to establish a TCP IP server using a gsm module Quectel M95. The poblem I came is that I interogate continously (~2 seconds ,perhaps faster) the server ; the server responds with some data ( less than 10 bytes ) ) after a while the connection is lost; the PC app I use as the client (the one which sends the request through intern
Hello there... i am trying to send some data(like "hello world!!!") to a web server from a HiLoNC v2 gsm module using POST method. but i dont know how to... i am totally new to gsm modules... if any body have experience with this module, please guide me through the sequence of AT commands to be send to perform this. i have done this (...)
Hi all.. I am doing a project using pic167873a interfaced with gsm and GPS.The gsm module is interfaced with pic using UART. We are using mikroC. Not getting codes for GPS interface using SPI. thanks in advance
Hello! As title says I having problem with PIC16F877A ADC.,Thus I want to send ADC data through gsm modem, But problem is.... I getting error Warning in MPLAB IDE (Hi-Tech C compiler) is as follows. Warning C:\Users\abk\Desktop\MPLAB TEST\SEM.c; 174.28 implicit conversion of float to integer Warning C:\U
Hi all, i am trying to send a data to server using sim900 gsm module interfaced with arduino uno. (I have laptop ,so can't use hyper terminal).The TCP connection is established, but the post command replies like below...and i can't send data. please help me... AT+CIPSEND AT+CIPSEND > POST (...)
hello i am balvendra choudhary i made a gsm based project in which i used atmega32 A and gsm sim900. in which response of AT command is OK. when i calling it shows RING on display. during calling the status would be three but its not what is the problem. same code is working with sim300 what is the problem i am writing code here #inc
I need advices about voltage level translation from 3.3V to 2.8V, becau se in my application i have to establish connection between a arduino due(3.3V) and a gsm module (2.8V). Could you suggest me a translator or a solution? Thank you in advance for you suppor
After 2days of works with this issue, I found that the GPS works fine. Even MCU can read the data very fine. But the problem is whenever I'm trying to use the gsm part to send that data via SMS, it can not read the GPS data. It reads it as a noise or blank space. Then what may be the solution of this issue? Should I keep a (...)
It's not clear if "PC" stands for the computer controlling the gsm modem or the internet peer. Presume that you can't make inbound connections to a mobile modem, because it's apparent IP address is shared with other devices and the connection attempt can't be routed. Mobile internet providers may offer professional price plans with fixed or at l
As the micro-controller works in 5V and the SIM300 gsm module works in 3.7V to 4.2V while the Tx of SIM300 is less than 3.3V as the datasheet says. 120195 120196 datasheet: included with this post as attachment. I used PIC and SIM300 module to send SMS many times and it works clearly. Bu