The Fire Monitoring Wireless Alarm Circuit Controlcircuit Circuit - span class news dt 16 11 2012 span nbsp 0183 32 unlimited recording storage space live tv from 60 channels no cable box required cancel anytime p div class b factrow b twofr div class b vlist2col ul li div author jinzhou wu div li li div views 2 9k div li ul ul li div video duration 2 min div li ul div div div li the fire monitoring wireless alarm circuit published 2011 7 6 9 38 00 author qqtang keyword fire monitoring wireless alarm from seekic a is the alarm emitting circuit b is the alarm reception circuit working of fire alarm circuit working is based on the switching property of transistor the thermistor and r1 forms a potential divider work which drives the transistor a shows the alarm monitoring and emission extension kd9562 forms the alarm monitoring station launchesby 8 trigger terminals the security monitoring circuit is posed of pyroelectric infrared detector module hl911l when.

the situation occurs hl911l s pin outputs high level then you can turnon the electronic switch to connect the this circuit is based on ldr light depended resistor a variable resistor in which the resistance varies according to the light intensity falling on it the ldr and resistor r1 forms a potential divider work which is the main part of our security alarm circuit this is the fire alarm circuit which use ldr to sense the smoke from the fire so it can be used to detect any dark smoke with the onset of summer season possibilities of fire accidents go up these fire accidents could be prevented if timely alarms are available the circuit given right here alerts the user against these fire accidents in many cases a doorbell that sounds off a musical tone is preferable over the mon buzz sound this featured circuit is a musical doorbell this circuit triggers the buzzer whenever it detects.

smoke or fire near by it this circuit mainly uses mq6 smoke gas sensor to detect the level of smoke mq6 gas sensor is



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