Lights and Display Board CircuitsSecurity & Saftey

HOME SAFETY 100M BARREL WITH LASER SCHEMATIC CIRCUIT DIAGRAM

The angles of the Mirrors used for laser transmission should be fixed well and should be 30cm above the ground. Mirrors, Laser, Ldr Fixed and should not be shaked Mirrors More efficiency is obtained if camouflaged and cables are stored.

HOME SAFETY 100M BARREL WITH LASER SCHEMATIC CIRCUIT DIAGRAM 1

OPERATION OF THE LASER BARRIER CIRCUIT

Our circuit consists of 2 Barriers, 1 Sealing, and 1 Siren circuit.

Barriers 1 and 2 operate with the same logic, we can describe the work of the Barrier 1 circuit as follows;

When the light comes down on the LDR, the resistance drops and if the light is cut off, the resistance rises.

As long as there is light on the LDR 1, the TR1 transistor cannot receive the polar polarity. Because our thyristor TRS 1 is not able to receive positive polarization, the resistor continues to stay with negative polarization due to the resistor R3. If the light is cut off, the resistance of the LDR 1 rises, and the TR1 transistor is transmitted by taking the polar pole on the R1 resistor. The flop siren feeds the circuit and the siren starts to play. Since the thyristor will remain in the transmission until the RESET button is pressed, the siren will continue to play.

NOTE: 1. The
LEDs 1 and 2 can be used when adjusting the angles of the mirrors in the circuit. )

As the light source is used, the laser is used. As it is known, this light source operates at low voltage. As we feed our circuit between 9 and 12v, a 220 ohm 1W resistor should be connected to the end of the lasers. 1W will reduce the heating of the resistance.

HOME SAFETY 100M BARREL WITH LASER SCHEMATIC CIRCUIT DIAGRAM 2

HOME SAFETY 100M BARREL WITH LASER SCHEMATIC CIRCUIT DIAGRAM 3

HOME SAFETY 100M BARREL WITH LASER SCHEMATIC CIRCUIT DIAGRAM 4

HOME SAFETY 100M BARREL WITH LASER SCHEMATIC CIRCUIT DIAGRAM 5

long-distance relationship: a relationship, typically a romantic one, in which the two people live far enough apart that they cannot see each other often: My boyfriend and I had an LDR for two years.
LDRs (light-dependent resistors) are used to detect light levels, for example, in automatic security lights. Their resistance decreases as the light intensity increases: in the dark and at low light levels, the resistance of an LDR is high and little current can flow through it.
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