SNN.GR

Smart kit

1. Smart Kit

1. Alarms - Sirens
2. Amplifier
3. Automation
4. Cars And Bikes
5. Computer Application
6. Converters - Chargers
7. Dimmers
8. Instruments
9. Light Modulators
10. Linears - Encoders
11. Music
12. Power Supplies
13. Preamplifiers Mixers
14. Receivers
15. Sound
16. Sound Effects
17. Telephone
18. Timers Counters
19. Transmitters
20. Various
21. Vu - Meters

--- Παρόμοια ΚΙΤ ...
1059 TELEPHONE AMPLIFIER
1119 TELEPHONE LINE RECORDING
1122 TELEPHONE CALL RELAY
1125 PULSE TELEPHONE LOCK
1130 TELEPHONE "BUG" DETECTOR
1155 TELEPHONE SCRABLER
1167 TELEPHONE LINES PRIORITY SWITCH
1182 MUSICAL HOLD ON
1185 TELEPHONE IN USE INDICATION
1186 8 CH REMOTE CONTROL BY TELEPHONE

1078

PROTECTION FROM MALICIOUS CALLS

SCHEMATIC

A simple and useful circuit that will ensure your protection from malicious calls, with an easy and certain way that you are able to change at any moment.The heart of the circuit is the PIC microproccessor 16C56, that cuts off the first rings (adjustable from 3 to 12), thereby the caller will hang up thinking that you’re absent.You are going to hear the call after the rings that you chose to cut off. V 9-12VDC P.S. 1061 PCB 65x105mm