Introduction: Dark Activated Night Light
Step 1: Materials
Breadboard (You could make a PCB if you want)
Any NPN transistor
One LDR
10k resistor ( Or trimpot for variable sensivity)
A LED ( You choose the color)
2X AA battery pack or any 3v battery
Any NPN transistor
One LDR
10k resistor ( Or trimpot for variable sensivity)
A LED ( You choose the color)
2X AA battery pack or any 3v battery
Step 2: Build the Circuit
Build the circuit on the breadboard!
Step 3: Done!
Done! Now turn off the lights and it should light up.
Step 4: Stripboard Version
![Battery Powered Contest](https://content.instructables.com/F17/FTS5/HH2VJPTU/F17FTS5HH2VJPTU.jpg?auto=webp&frame=1&width=320)
Participated in the
Battery Powered Contest
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Participated in the
Kit Contest
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Participated in the
Weekend Projects Contest