hello guys,, i am facing the same problem.. i tried a lot but could not received message form sim900. i am trying to get message from sim900 and display the message on lcd. but lcd is showing garbage values. what could be the problem guys?
Are you try make own prototype phone board by using 89C51 and LCD to connect to cheap GSM phone or GSM Module , right ? More data in old electronics journal and local publish , I think . :grin:
Hello sir, thank you for the code.
i am designing a project for gsm based automation, i send a message and the relay unit responds to it by on and off, i'm having hard time programming my logic, can you help me with it.