if you are using GSM module | Microcontroller › PIC › reading sms from gsm modem and comparing with predefind one › if you are using GSM module August 6, 2012 at 6:43 am #8405 AmrithParticipant if you are using GSM module then there is no need of level converter between your controller & GSM module. Note: Remember GSM Modem is different fromGSM module.
