E-Robotron : Robotics, Electronics and More

Hello everyone! Hope you are being benefited from the information I have been sharing. Many of you have been working with GSM based projects and have been highly benefited from the earlier post of sending and receiving sms using gsm module . This is the continued version of the similar topic. Note: We recommend you to visit Sending and Receiving SMS using GSM module before you read further. Many were benefited from the earlier but faced problem while receiving sms from the mobile on gsm so I have tried my best to solve the issue with description and additional code in this post. Receiving a text message on SIM900 module is a bit difficult because now you need to place a check when user will send a message. So, ideally whenever anyone send a message to your SIM900 module, you should get notified. These are to be covered in detail. Now, after we get notified, there is a need to read message as well and who has sent the message. So, all we will place a ch

Hello everyone! Hope you are being benefited from the information which I shared with you. Many of you have been working with the GSM based projects whether it is for home automation, automation, tracking and the list goes on. With the view to help everyone having problem working GSM we prepared a video for Sending and Receiving SMS with GSM module available on YouTube or you can see below. With the target to help with the code we have shared it with you through this. All the steps are crystal clear as the video provides. We have arduino mega 2560 and GSM 900 module. The transmitter and receiver of the arduino is connected to the vice-versa of GSM module. The Ground is made common. Set the baud rate 2400 since 9600 is too high that does not support. The code consists of AT commands (Click to download pdf of AT Command Reference) for receiving and sending SMS using GSM.  The code used is shown below with the different probable conditions: 1) If you want to r