LDR sensor tutorial with darkness sensor example
Learn how to use an LDR (Light Dependent Resistor), also known as a photoresistor. In this video we’ll go over the basics of the Light Dependent Resistor and an example on how to use an LDR to turn on a light when it’s dark.
*Note that the LED flash used in this example is a ready-to-use component with a built-in resistor, which is why a separate resistor is not needed.
Related Blog Post: www.diyengineers.com/2021/02/18/ldr-sensor-tutorial-how-to-use-a-light-dependent-resistor
Where to buy [Amazon Affiliate]:
Light Dependent Resistor (Module: KY-018): https://amzn.to/3UWGNRs
Light Dependent Resistor (stand-alone): https://amzn.to/3yByLpA
Hilitchi Transistors Assortment Kit: https://amzn.to/4aI8Mux
Breadboard (Elenco 9440): https://amzn.to/4b5Onzq
Amprobe AM-510 Multimeter: https://amzn.to/44gy2WE
Amprobe TL35B Test Leads with Alligator Clips: https://amzn.to/3Utf8s0
Super bright LED Flash:
www.superbrightleds.com/moreinfo/led-wired-bolts/little-dot-smd-led-accent-light/639/
Chapters:
0:00 Intro
1:41 LDR Module Circuit
2:18 LDR Basic Circuit Equations
4:58 LDR Darkness Sensor Example - How it works
8:31 LDR Darkness Sensor - Breadboard Diagram
9:52 LDR Darkness Sensor - Test