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Light Activated Switch

1.7
Easy Build
Exclusive to Kitronik
Teaching Notes
Key Stage 3
The Light Switch Kit detects the brightness of its surroundings using an LDR. The kit acts as an automated on/off switch (light dependable) for many devices.

Availability: In Stock.

Code1+ 5+ 50+
2112£1.70
(£2.04 incl VAT)
£1.32
(£1.584 incl VAT)
£1.02
(£1.224 incl VAT)
OR

This light activated kit is also available as a temperature activated project kit. The output of theis board can be used to control other electronic circuits, turning them on automatically when it goes light or dark.

The board has space for an LED with current limit resistor (both available separately) which will light when the output turns on.

The Darlington pair transistor configuration allows an output current of up to half an amp to be controlled. Operating voltage 3V to 12V (lower voltages allow for better adjustment of the switching point).

Features:

  • This Light Switch Kit detects the brightness of its surroundings using an LDR.
  • The kit acts as an automated on/off switch (light dependable) for many devices.

Contents:

Possible applications include:

  • Garden light that switches on automatically at night.
  • Draw alarm, which sounds when a dark draw is opened.
  • Line following robot (using 2 light activated boards).

Dimensions:

  • PCB Length: 53mm.
  • PCB Width: 25.5mm.

Requires:

Resources:

Note:

  • This kit requires soldering.

Free samples:

Teachers can order a sample of this kit (one per school) here. You will need to select the kit from a list of all the sample kits; the stock code for this kit is 2112.
Note: this service is only offered to schools for evaluation purposes only.

Buy British:

 This kit is designed and manufactured in the UK by Kitronik.


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Questions:

Posted by John, on product Light Activated Switch
  • 0
    vote
    A: Hi John, It would depend greatly on the LED you are using and also the trigger point you set the kit to but technically yes you may be able to get an LED to trigger the circuit.
    Posted by Michael Lockhart on Tuesday, 2 January 2018

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Same Day Dispatch

  • Orders placed online before 3:00pm Monday - Friday (excluding public holidays and our Christmas shutdown period) are always dispatched the same day provided the goods are in stock. If the goods are not in stock we will endeavour to contact you as soon as possible to discuss a dispatch date.

UK Deliveries

  • If you live on the UK mainland and don't have any large materials or lithium batteries in your order it will cost 3.95 (4.74 including VAT) if you spend less than 40 (48 including VAT).
  • If you spend between 40 and 200 (48 - 240.00 including VAT, excluding large materials or lithium batteries) delivery is free to most locations, 12 (14.40 including VAT, excluding large materials or lithium batteries) to Northern Ireland and 15 (18.00 including VAT, excluding large materials or lithium batteries) to UK remote locations. For a list of postcodes that will be charged the remote location rate click here.
  • If you spend over 200 (240.00 including VAT, excluding large materials or lithium batteries) delivery is free within the UK.

Rest of the world

  • These orders are sent via UPS, and the cost is dependant on the service you choose at checkout. Alternatively you can choose the free collection option and have your own courier collect it from us. International orders can only be shipped to the registered card address. Please note: International orders may be charged import duty dependant on local import laws and duty rates. These charges are usually billed to you directly from UPS.
  • Delivery times vary for international orders depending on the service selected and the destination. You can see the delivery time and cost at the shipping stage, or by using the shipping estimator from within the shipping basket.

Collection

  • If you would like to collect your order, or use your own courier then there is an option you can select during checkout. We do not charge a packaging or handling fee for this service, and you will receive an email when your order has been processed, you can collect half an hour after receipt of this email.

Further Information

  • For information about all of the delivery options we offer click here.

Physical characteristics:

  • PCB Length: 53mm.
  • PCB Width: 25.5mm.
  • PCB Component Count: 5.

Electrical characteristics:

  • Voltage Nominal: 3V.
  • Voltage Range: 3V - 12V.
  • Standby Current: 0.12mA.
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