File Alarm with LDR Sensor

Posted on Feb 6, 2014

File alarm with LDR sensor. The sensitivity of the circuit is dependent upon the distance between bulb and LDR as well as setting of preset VR1. Thus by putting the bulb and the LDR at proper distances, one may vary preset VR1 to have optimum sensitivity. This is the fire alarm circuit which use LDR to sense the smoke from the fire, so it can be u

File Alarm with LDR Sensor
Click here to download the full size of the above Circuit.

sed 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. This is the color sensor circuit diagram. Color sensor is definitely an exciting project for hobbyists. The circuit can sense eight colors, i. e. blue, green and red (primary colors); magenta, yellow and cyan (secondary colors); and black and white. The circuit is based on the fundamentals of optics and digital electronics. The object whose color. This is the schematic diagram of LPG gas leakage sensor alarm. The circuit operates off a 9V PP3 battery. Zener diode ZD1 is applied to convert 9V into 5V DC to drive the gas sensor module. The SEN-1327 gas sensor module from RhydoLABZ is applied in this circuit. Its output goes higher when the gas. This is the light fence schematic diagram uses LDR as the light sensing. The fundamental issue with the greater part of standard light sensors is that they require exact arrangement of light bar to quiet the circuit throughout standby mode. The circuit portrayed here is sensitive to the point that it will catch a moving. This is the color sensor circuit diagram. This circuit will sense eight colors that are:, green, red and blue (as primary colours); magenta, cyan and yellow (as secondary colours); and black and white. It`s will be very useful for robotics project. The circuit...

Leave Comment

characters left:

New Circuits



Popular Circuits

2 Watt Audio Amplifier
AVR Frequency Meter
Bandswitched Grid Dip Meter
Serial Servo Controller with Arduino
simple preamplifier for microphones tape heads etc
3 channel audio mixer
mains voltage detector
multiplexer with limiter and low pass
Digital Voltmeter and Ammeter Using CA3161E and CA3162E
LM1881 LM1881 Video Sync Separator
Thermistor Thermometer circuit
Normally closed contact burglar alarm circuit diagram