i m unable interface gsm modem kit (st2133) using microcontroller AT89S51 to just send an sms . is it possible to interface with using only 3 pins of uc i.e txd,rxd ,gnd of uc.please send me a sample code for this gsm modem interfacing.i hope a helping hand from yours.
Erik Malund! You were instructed to deliver code not to ask questions!
Erik Malund! You were instructed to deliver code not to ask questions! ah, but there was no RFQ
Erik