the assignment was about to create a circuit that takes input and gives outputs
manual alarm as in shops while robbery
the idea is a button to trigger an alarm and a red led
I used tinkerCAD for the simulation
used materials :
buzzer
yellow led
crocodile wires
button
some cardboard and sellotape
the device contains 2 outputs
buzzer and yellow led and switch as input
i used 5 voltage power supply to be more easy on the leds
The electrical circuit is prototyped on a breadboard as shown and buzzer and yellow led are connected parallel connection
used 1k resistance to protect led from burning
card board enclosure
switch
switch opening
breadboard
used adaptor
adaptor opening
at first led burned although I was using a 330 ohm resistance
after several trials I used 1k resistance and it finally worked
i was also using 9 v adaptor but changed it to 5
burned led
used led