I've been working on an alarm system and needs a circuit for a GSM Dialer which can be coupled to the alarm system. The GSM Dialer when triggered by the alarm system, automatically dials and calls and sends an SMS to a pre programmed. Can anybody help me out by sending me a schematic diagram of the GSM Dialer?
The triggered output of the alarm system is + 12 Volts and can supply current by as much as 2 amperes.