Raspberry pi 3 tutorial #5: how to use LDR sensor Python Programming 'Beginners level'

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Project Description:
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In today’s episode, you will learn how to use an LDR “light-dependent resistor to control an LED” light-emitting diode”. The LED will be turned on and turned off depending on the light intensity in the room. This project can also be used for day and night detection. The components that we will be needing for this tutorial are
1. Raspberry pi, the one I will be using is raspberry pi 3 b+, you can also use any other version of the raspberry pi.
2. 5v 2Amps adaptor or you can also use a power bank
3. An LED. The longer leg is the anode and the shorter leg is the cathode.
4. A 330 ohm resistor
5. Some male to female type jumper wires
6. LDR”light dependent resistor and finally
7. 10 uf capacitor, this leg is the positive and the leg on the line side is the gnd.

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Purchase links for Components with best prices.

Oled HDMI touch display for raspberry pi :

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Wireless Keyboard and Mouse for raspberry pi:

Night vision Camera for Raspberry Pi:

Power bank:

LDR "light dependent resistor":

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[TheBradyBox]

Thanks ! Video was perfect for what I was looking for

[HarishKumarC]

Can I know why 10uF is used, can we use other capacitor?

Can we use adc converter, is so, which adc is better.please let me know

[rennellliwanag]

Nice video sir. Can you pls make a tuitorial using ldr and a dc motor for my project " solar tarcker " i want to use ldr and a dc motor thank you sir

[soorionyt]

Can I have a bigger picture off the raspberry pie because I can't see where to put the wires or the led or the light sensor

[ItsYoBoiVasi]

GPIO.setup(ldr, GPIO.OUT)
GPIO.output(ldr, False)

time.sleep(delayt)

GPIO.setup(ldr, GPIO.IN)



why is it set as output and then as an input?

[rajendrakumar]

Small request sir I need interfacing between raspberry pi to speed sensor....means it detect speed of any object(ex.vehicle)...pls asap make it

[seasonedtoker]

I don't get people who sudo nano in home dir...