Touch pencil 👆 water alarm project / using HW BATTERY / science project
#7techprojects #electronics #science #project #wateralarm #hwbattery #scienceproject #touchpencilproject
#alarm #sensor #buzzer
simple electronics project for students
you can present for school scince exhibition.
you can make at home.
components need:-
hw 9v battery
pencil 2
bc 457 transistor
buzzer
wire
water
Also you can watch
touch pencil start motor/hw battery science project
• Touch pencil 👆 start motor / hw batte...
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