Internet dongal result put to the MCU

[micropad]

Dear ALL,THis is related to PIC16f877a MCU and USART
Following message was received to my Hyper terminal from my Internet dongle. which is SMS I sent to Dongal SIM

+CMGL: 1,"REC UNREAD","+96712720102",,"13/02/2,21:41:34+22" RB0

My message is "RB0"

Now I need to send this message to MCU using USART and in the MCU, I need to light on RB0 LED
Please advice step by step

Thanks in advance

 

[Mr RB]

What do think is the best way to do it?

Maybe you could just capture the last 2 characters B and 0? That gives the port and the pin.

 

[Nigel Goodwin]

What do think is the best way to do it?

Maybe you could just capture the last 2 characters B and 0? That gives the port and the pin.

In my 16F1827 based SMS system I read the entire message in to a buffer (hence the use of the 1827), and do a text search on the buffer.

I consider it important to be pretty to be specific about the instructions you're searching for, just 'B0' would be a bit to easy to occur accidentally - I choose a five letter system such as "SET= - which would work well in this case, you could have "RB0=ON" and "RB0=OFF" for example. So you search for "RBO= and once that is found read the following characters and look for the subsequent " which signifies the end of the instruction, then simply check if it's ON or OFF.