Security Alarm System - Электронный сторож. HD

Security Alarm System - Электронный сторож. Electronic Watchdog Scheme The principle of operation of the circuit is very simple The sensor is a thin copper wire, which turns on the alarm when the circuit breaks. The wire is placed around the perimeter of the protected space so that when the door or window opens, the wire breaks. The circuit is assembled on two transistors МП42Б and is a DC amplifier. While the security wire is intact, current from the battery, Flows through it AND Resistor R1. Since the resistance of the wire is insignificant, the voltage at the bases of the transistors is low and they are closed. When the wire breaks, the current from the battery flows through the resistor R1 and the basic circuits of the transistors. As an actuator, an active buzzer of 5 volts acts. Sensor wire - used 0.15 mm diameter This scheme can be a good assistant for protecting a room or some territory, for example, a summer cottage or a garden. https://www.youtube.com/post/UgysjAr88Iok_HkC36F4AaABCQ Please, subscribe, like, comment and SHARE! INSTAGRAM - https://www.instagram.com/estation.yt/?hl=ru VK: https://vk.com/club126145973 Twitter: https://twitter.com/EStation10 Circuit: https://vk.com/club126145973?z=photo-126145973_457239519%2Fwall-126145973_829 alarm, home security, security, gsm, security system, how to, wireless, system, security alarm, home security system, alarm system, door alarm, technology, at home, home alarm, motion detector, home automation, pir, homekit smart home, gsm alarm, homekit devices, burglar, gsm сигнализация, how to make, burglar alarm, best home security, security alarm system, best home alarm system, best home security system, best security system, door, home, sensor, diy, ring alarm, sms alert, homekit, voice alert, simple circuit, tech, review, make a, window detector, door security alarm, wireless alarm, circuit, remote control, door detector, sim card, alarm device (organization sector), gadgets, best home security camera system, cell phone, best security system home, best security for home, home security alarm system, top security systems for homes, top security systems, best security system for home, laser light, unboxing, office, fire, сигнализация, ring security, gsm сигнализация для дома, apple homekit, alarme sans fil, setting, homekit alarm system, homekit security system, security alarm (invention), motion, aqara hub, homekit security, technical hacker, laser security alarm, kerui, homekit apple, affordable homekit, affordable homekit devices, smart home, aqara security system, break in, aqara door sensor, aqara alarm, jim stickley, safety first technology bike security, keypad, home cctv, ring alarm home security system, locks, lock, smart home setup, trace security, how to install alarms, tracesecurity, homekit secure devices, homekit setup, aqara homekit, homekit garage door, cctv, охранная сигнализация, ricochet monitor, купить в киеве, texecom, gsm охранка, homekit ideas, wintex, aqar