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Introduction
In this assignment, we are building and understanding two simple electronic circuits: the astable circuit and the burglar alarm circuit.
Astable Circuit
components
components
breadboard
battery
resistors (220 , 10k , 100k)
capacitor (10uf , 0.01uf)
led
jumpers
555 timer
Datasheet
Datasheet
Simulaion
How to build
step 1
step 1
connect pin 1 with ground and pin 8 with battery
step 2
step 2
connect pin 2 with 10uf capacitor, pin 3 with 220 ohm and the led and connect pin 4 with battery
step 3
step 3
connect pin 5 with 0.01uf capacitor and connect pin 6 and 7 with 100k resistor
step 4
step 4
connect pin 2 with pin 6
Burgler Circuit
components
components
breadboard
jumpers
555 timer
buzzer
100k resistor
Simulation
How to build
step 1
step 1
connect pin 1 with ground, pin 4and 8 with battery and connect pin 2 and 6 together
step 2
step 2
connect 100k resistor wthe pin 2 and battery
step 3
step 3
connect the - leg of buzzer with pin 6 and the other leg with battery and add a wire between pin 2 and 6 for detection
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