You cant use max232 on nokia 6210 or same type of nokia!
Level is 2.7V and you must make special cable named DLR3V.
I was make that and it work 100% good.
By the way u must work with nokia6210 on 115kbps not 9600!
Here is part of my code where I send temperature from 3xDS1820 wich is on 3 frigo buildings wich have temperature range from +5C to-20C.
receiving msg***************
citanje: high led
hserout ["AT+CMGF=1",13,10]
pause 2000
low led
hserout ["AT+CMGR=1",13,10]
hserin 5000,nemaSMS,[skip (74),str b1\1]
if b1 = b3 then tmp
low led
goto citanje
sending msg**************
sendSMS: high led
hserout ["ATZ",13,10]
pause 500
hserout ["AT+CMGF=1",13,10]
pause 500
hserout ["AT+CMGD=1",13,10]
pause 500
hserout ["ATZ",13,10]
pause 1000
hserout ["AT+CMGF=1",13,10]
pause 1000
hserout ["AT+CMGS=",34,"+381601302395",34,",129",13,10] ' mine phone if someone need ;-)
Pause 500
hserout ["K1 = ",tempneg1,dec b2a," C ","K2 = ",tempneg2,dec b2b," C ","K3 = ",tempneg3,dec b2c," C",10,13]
hserout [26]
Pause 1000
low led
goto citanje
Regards Robert
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