10 Aralık 2012 Pazartesi

Intermediate Burglar Alarm Telephone with PIC16F628A


Phone Intermediate Burglar Alarm Operating Instructions
When power is first turned off the alarm system. In this case, an alarm can be activated by entering the password. Wrong key is pressed "3 beep" sound is heard.
Password when prompted, and phone numbers saved to the * and # keys pressed at the same time. The first pressing the "single beep" when the "three beep" sound is heard. 4 to 9 digit password is entered as zero. After each key pressure "beep" sound is heard. After entering the four-digit password, "3 beeps" will be heard. In this case, enter the phone numbers one by one.