How To Make Security Alarm With LDR
How To Make Security Alarm With LDR
This video will show you how to make Security Alarm
#easytechnology
#securityalarm
#LDR
#electronics
#bc547projects
published on 3Apr, 2022
using components
1_ BC 457 transistor
2_ LDR
3_ 2.2k resistor
4_ 220 ohm resistor
5_ LED
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