Loading...

 We have over 700 end of line + a few over stocked items available at discounted prices whilst stocks last. Look out for the them as you browse, download a complete PDF list or visit this page.


Kitronik Light Activated Switch Component Kit

View larger image

Kitronik Light Activated Switch Component Kit

Part No.: 2904-212

Shipping Weight: 6.00 g.


Price Ex VAT: £1.64

(£1.97 inc tax)
In stock

Our quantity discounts (excl VAT):

Buy Quantity  10+   50+   100+ 
Price Ex VAT  £1.31   £1.23   £1.16 
328 Techno Points

This kit is available in two variations, this is the light activated switch version or a temperature activated switch is available. The output of the board can be used to control other electronic circuits, turning them on automatically when it goes light, dark, hot or cold.

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 ½ an amp to be controlled. Operating voltage 3V to 10V (lower voltages allow for better adjustment of the switching point).

Possible applications include:

  • Garden light that switches on automatically at night
  • Draw alarm, which sound when a dark draw is opened
  • Line following robot (using 2 light activated boards)
  • Babies bath over temperature indicator
  • Automatic fan
Kit contents:
  • 1 x 47Kohm potentiometer
  • 2 x BC337 NPN transistors
  • 1 x miniature LDR (light dependent resistor)
  • 1 x 220ohm resistor
  • 1 x light activated switch PCB

PCB dimensions: 53mm x 25.5mm.

Also Bought

 
Panel Mounted Bi-Directional Variable Speed Regulator Panel Mounted Bi-Directional Variable Spee...

£16.97 (£20.36 inc tax)

   
3 x AA Switched Battery Box with Leads 3 x AA Switched Battery Box with Leads

£0.94 (£1.13 inc tax)

 
 
4 x AA Switched Battery Box with Leads 4 x AA Switched Battery Box with Leads

£0.82 (£0.98 inc tax)

   
2 x AAA Switched Battery Box with Leads 2 x AAA Switched Battery Box with Leads

£0.46 (£0.55 inc tax)

 
 
4 x AAA Switched Battery Box with Leads 4 x AAA Switched Battery Box with Leads

£0.74 (£0.89 inc tax)

   
2 x AA Enclosed Battery Box with Leads 2 x AA Enclosed Battery Box with Leads

£0.46 (£0.55 inc tax)

 
 

 

Just a few of the companies Technobots are an official distributor for:
       Manufacturers