Pic to GSM Phone connection (HSerin problems)

[mister_e]

you'll have to do some modification before. Ralph's favourite 16F84a have no internal USART. Wich mean that, at least, you'll need to change HSEROUT, HSERIN for an equivalent SERIN,SERIN2,SEROUT,SEROUT2

Once it will be done... it's suppose to work fine.

[NavMicroSystems]

..,Ralph's favourite 16F84a have no internal USART. Wich mean that, at least, you'll need to change HSEROUT, HSERIN for an equivalent SERIN,SERIN2,SEROUT,SEROUT2

Steve, thanks for the reminder ;-)

As you can see, many beginners are giving themselves a hard time by starting with that "great" F84 while life could be so easy with one of the recent 18pin types.

I guess one of the reasons is because my favourite is mentioned in so many (outdated) books and manuals.

(Even in the lastest issue of the PBP Manual)

[mister_e]

Ralph,
in addition to that, this awesome F84 is one of the first flash device from Microchip and can still be found everywhere and at local electronic parts provider... like 12C508

for the remainder, you know why i did it

[kasamiko]

And it is also weird.....
It's the ONLY PIC available in our electronics store!!!
That's why I have no choice...

BTW:
Is there a FREE PicBasic compiler and some links for tutorials??

Thanks

[aruran]

Sorry to ask you all again. I didn't quite get it Mr.kasamiko since the phone's voltages are little lesser

than 5V. So why the hell we should use max232 to connect to the pic. I didn't quite understand it. I thought

if I connect it to the PIC directly through the interface given http://www.atrox.at/datacable/dlr3/index.html

But I am not farely clear what pins I should omitt. I thought that the phone's MBUS and GND are the only pins connected. As posted by stu746 I didn't realy understand the circuit modification. Enybody please help me......? If you could send me the circuit for any nokia connecting to a PIC only would be of immense help.
I will be greatful to you all

regards
aruran

[Ioannis]

On the above code:

HSerin 5000,loop,[wait("UNREAD"),skip 3,STR Caller\13,skip 4,STR GSMTime\17,skip 6, STR GSMBUFFER\16\13]

it would be good to change UNREAD to READ since the phone can answer also "REC READ" or other "READ" messages.

Ioannis

[kasamiko]

On the above code:

HSerin 5000,loop,[wait("UNREAD"),skip 3,STR Caller\13,skip 4,STR GSMTime\17,skip 6, STR GSMBUFFER\16\13]

it would be good to change UNREAD to READ since the phone can answer also "REC READ" or other "READ" messages.

Ioannis

What is the purposed of this code modification? and in what particular above code?
Thanks

[kasamiko]

Sorry to ask you all again. I didn't quite get it Mr.kasamiko since the phone's voltages are little lesser

than 5V. So why the hell we should use max232 to connect to the pic. I didn't quite understand it. I thought

if I connect it to the PIC directly through the interface given http://www.atrox.at/datacable/dlr3/index.html

But I am not farely clear what pins I should omitt. I thought that the phone's MBUS and GND are the only pins connected. As posted by stu746 I didn't realy understand the circuit modification. Enybody please help me......? If you could send me the circuit for any nokia connecting to a PIC only would be of immense help.
I will be greatful to you all

regards
aruran

MAX232 was used on that circuit since it was designed to be used for PC. If you're planning to use that as stand-alone on Nokia's like 6210, you can omit MAX232..
I have a circuit to be connected for 6210 but I dont have a code for PIC to have it receive an SMS then activate a relay.
What I need is a PIC16F84 with 8 mhz xtal and can drive a 4 relay when it received an SMS command..
I know sa AT commands for Nokia but don't know how would I start it..
Any sample codes will be appreciated.
TIA