Circuit Schematic Basement Flood Alarm using NE555 IC

555. - This is electronic Circuit Schematic Basement Flood Alarm using NE555 IC like in Figure 1 below. In this circuit schematic the basic component used is NE555 IC. 

In here we will give you global description about Circuit Schematic Basement Flood Alarm using NE555 IC and then we will give you link to continue your reading from original source as external website.

Circuit Schematic

Component Part


R1, R2, R3 = 1K ¼ w
R4 = 18K ¼ w
R5 = 180K ¼ w
P1 = 1M


C1, C2 = 1uF/25v
C3 = 10nF
C4 = 10uF/25v


IC1 = NE555
D1 = 1N4148
T1, T2 = BC547
LED1 = Red/10mA


BAT = 9V PP3 Battery

BZ1 = 5V Piezo-Sounder


Circuit schematic like in Figure 1 above is Circuit Schematic Basement Flood Alarm using NE555 IC. Electroschematics site describe that even though floods don’t always rate high on our list of concerns, if we get an early warning about one, we should take steps to help prevent as much damage as possible, including dangerous substances within the floodwaters that could enter our homes. The circuit of the basement flood alarm introduced below is designed to sound off like an alert signal generator when water gets where it doesn’t belong. Power by a compact battery, this alarm will provide an early alert that can help you ward off a damaging flood in your basement or crawl space. The circuit works on the simple, sound, and extensively proven principle of electrical circuits. The flood alarm has an aqua-sensor with two sensor probes. When the sensor probes make contact with water, the water completes the electrical circuit, which allows an alarm to sound.

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