Home > DIY Module > Function DIY > DIY Kits Photoelectric Multi-function Light Control Automatic Switch Kit Electronic Production Kit DIY Module

DIY Kits Photoelectric Multi-function Light Control Automatic Switch Kit Electronic Production Kit DIY Module

5 9
$2.75 $1.93
Contact us for wholesale price
Time Remaining:
- OR - - OR - Add to Wish List

The circuit can automatically open and close related appliances according to the brightness of light. Its output is controlled by the relay, which can directly replace the original manual switch. (If you replace the photosensitive resistance of this circuit with other sensitive resistors, you can make other automatic switches, such as temperature control switches, etc.).

Working Voltage:
5-12V is available. The coil voltage of the relay is 5V by default and the measured working voltage is 4-12V. If you work long hours in high voltage conditions, recommend replacing the relay with 9-12V.

Circuit Principle:
It is the Schmitt trigger of the circuit with the circuit U1 at the base of NE555.The photosensitive resistor is the input signal of the RP1 series.Adjusting RP1 can change the light intensity control point.C1 is the interference signal absorption capacitance.When the light is very bright in the daytime, the RG resistance is small, the input voltage is higher than the reference voltage voltage (5 feet pin), the output low level 3 feet pin, VT1 cut-off, relay doesn't work, losing electricity output switch (1, 2 feet of JP1), with electric does not work.When the light dimmed, RG resistance increasing, the input voltage is falling, when the voltage is less than half of the reference voltage, the trigger flip, 3 feet, output level VT1 conduction, relay electric off, with electric start work.
When the input voltage is between the reference voltage and the reference voltage of 1/2, the circuit maintains its original state.This is conducive to the stability of the circuit.Adjusting RP2 can change the reference voltage, thus changing the control brightness range and the starting point.The RP2 and RP1 need to be adjusted repeatedly to achieve the required degree.Switch signal output from JP1, its often opened on the choice of normally closed contact according to the need to be sure, can be directly driven 220 V/prefix = st1 ns = "urn: schemas - Microsoft - com: office: smarttags" any electrical appliances within 3A, to achieve automatic switch (such as street lamps, etc.). The LED is a dual-color, and the relay fails to absorb the red light and is used as a power indicator. After the relay is closed, the red light is out and the light is green.

Circuit Diagram:

Component Listing:

NO. Component Name PCB Marker Parameter QTY
1 Metal Film Resistor R1-R3 1K 3
2 Ceramic Capacitor C2 0.1uf 1
3 1N4148 VD1   1
4 Electrolytic Capacitor C1 10uf 1
5 S8050 VT1 TO-92 1
6 Photoresistance RG   1
7 Potentiometer RP1 135K 1
8 Potentiometer RP2 2.2K 1
9 LED LED 5mm 1
10 NE555 U1 DIP-8 1
11 Relay J1   1
12 Male Pin JP1 3P 1
13 PCB   34*35mm 1

I. Tested by ICStation's Outstanding Partner bzoli5706:

Learn More Details in the Video:
(The language in the video is English)

II. Tested by ICStation's Outstanding Partner Lukas Ekers:

Learn More Details in the Video:
(The language in the video is Music)

There are currently no product reviews.

First we should say that ICStation doesn't accept any form of pay on delivery.Items used to be shipped after receiving the order info and payment.

1) Paypal Payment

PayPal is a secure and trusted payment processing service that allows you to shop online. PayPal can be used at icstation.com to purchase items by Credit Card (Visa, MasterCard, Discover, and American Express), Debit Card , or E-check (i.e. using your regular Bank Account). 

We are PayPal Verified 


2) West Union


We know that some of you do not have the Paypal account. 

But please take it easy. You can use West Union payment method.
Learn more at West Union at www.westernunion.com.
For the receiver info, please contact us at orders@icstation-team.com.
3) Bank Transfer / Wire Transfer / T/T

Bank Transfer / Wire Transfer / T/T payment methods are accepted for orders which the total price is up to US$500. The bank will charge about US$60 for the transfer fee if we do the payment in these ways. 

For other payment method, please contact us at orders@icstation-team.com for more details.

1. Yanwen / YunExpress / 4PX / China Post Airmail Service

(1) Due to the high risk of package lost recently, we have to stop using the free shipping way these days. Hope for your kind understanding! And the $5 is for tracking number and delivery insurance ^0^ Enjoy order from us. 

Free Shipping for all orders over $20 ^0^ (with free tracking number and delivery insurance fee)

(2) Shipping time 
Shipping time is 7-20 business days to most of countries; please view below table for exactly shipping time to your location. 

7-15 working days to: Most of Asia countries
10-16 working days to: USA , Canada , Australia , UK , Most of Europe countries
13-20 working days to: Germany , Russia
18-25 working days to: France , Italy , Spain , South Africa
20-45 working days to: Brazil , Most of South America countries

2. DHL/FedEx Express

(1)Shipping Fee: Free for the order which meet the following requirements
Total price of the order >= 200USD or Total weight of the order >= 2.2KG

When the order meets to one of the above requirement, it will be shipped for FREE via EMS/DHL/UPS Express to below country. 
Asia: Japan , South Korea , Mongolia . Malaysia , Singapore , Thailand , Vietnam , Cambodia , Indonesia , Philippines 
Oceania: Australia , New Zealand , Papua New Guinea 
Europe& America: Belgium, Britain, Denmark, Finland, Greece, Ireland, Italy, Luxembourg, Malta, Norway, Portugal, Switzerland, Germany, Sweden, France, Spain, USA, Austria, Canada
Note: Shipping Fee to other countries, please contact orders@icstation-team.com

(2) Shipping Time & Delivery Time

Shipping time: 1-3 days
Delivery time: 5-10 working days (about 1-2 weeks) to most of countries. 

Because the package would be returned to the sender if it had not been signed by the receiver , please pay attention to the arriving time of the package. 


1) APO and PO Box Addresses

We strongly recommend that you provide a physical address for order delivery. 
Because that DHL and FedEx are unable to deliver items to APO or PO BOX addresses. 
2) Contact Phone Number
Receivers' contact phone number is required by express shipping agency for the package delivery. Please provide us with your latest phone number.

3. Note
1) Delivery Time of mixed orders with items in different Shipping Status should be calculated using the longest estimate times listed. 
2) Chinese Holiday Reminder: During annual Chinese holidays, services from certain suppliers and carriers may be affected, and delivery for orders placed around the following times may be delayed by 3 - 7 days: Chinese New Year; Chinese National Day,etc. 
3) Once your order is shipped, you will receive an email notification from icstation.com
4) Track the order which with tracking number via below links:

YunExpress / Yanwen / China Post: www.17track.net/en
FedEx: www.fedex.com


Customers who bought this product also purchased

DIY Kit DC 9V-12V Red Blue Automatic Flashing LED Lamp NE555 CD4017 Analog Circuit Electronic Soldering Practice Kits
DIY Kit Voice Control Red LED Rhythm Lamp 5pcs LED Lamp Analog Circuit Electronic Soldering Practice Kits for Beginners
DIY Kit AC/DC-DC LM317 Adjustable Step Down Power Supply Voltage Converter Electronic Soldering Kits
DIY FM Wireless Microphone Kits 88MHz-108MHz FM Transmitter Electronic DIY Soldering Kits
DIY Kit NE555 Electronic Keyboard Music Playing Module Analog Circuit Electronic Soldering Practice Kits
DIY Kit LM358 Infrared Sensor Alarm Analog Circuit Learning Electronic Soldering Practice Kits
SMD Component Welding Practice Board DIY Kit Analog Circuit Electronic Soldering Practice
ICStation DC to DC Step Up Module Boost Converter Power Supply Module DIY Kit DC 5V to DC 12V
DIY Kit LM358 Breathing Lamp Blue LED Electronic Soldering Practice Kits
DIY Kit SMD 15Bit RGB LED Flashing Analog Circuit Electronic Soldering SMD Component Welding Practice Board
DIY Kit LED Follow Spot Lights LED Light Game Electronic Soldering Practice Learning Kit
DIY Kit NE555 Infrared Reversing Radar Sensor 30cm Distance Sensing Analog Circuit Electronic Soldering Kits

Your Recent History

DIY Kits Photoelectric Multi-function Light Control Automatic Switch Kit Electronic Production Kit DIY Module