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2131_large_usb_powered_colour_changing_lamp_kit

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Colour Changing USB Lamp Kit

2.5
Easy Build
Exclusive to Kitronik
Teaching Notes
Key Stage 3
Build a computer desk ornament using this simple USB powered board. The Colour Changing LED slowly cycles through a range of colours.

Availability: In Stock.

Code1+ 5+ 50+
2131£2.50
(£3.00 incl VAT)
£1.85
(£2.22 incl VAT)
£1.55
(£1.86 incl VAT)
OR

Build a computer desk lamp or ornament using this simple board. This kit is the colour changing version, it is also available in a white version. The board takes power from a USB port and the light can be turned on / off with the on board switch.

Features:

  • Colour Changing USB Lamp Kit.
  • The Colour Changing LED slowly cycles through a range of colours.
  • The board takes power from a USB port and the light can be turned on / off with the on board switch.
  • This kit is also available in a white version.

Contents:

Dimensions:

  • PCB Length: 44mm.
  • PCB Width: 16.5mm.

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 2131.
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 luke, Tuesday, 31 January 2017 on product Colour Changing USB Lamp Kit
  • 0
    vote
    A:

    Hi Luke, The sequence for the LED used in this kit is as followed: Red, green, blue, yellow, cyan, magenta then back to the beginning of the cycle. As the change is a gentle fade you do get colours between these in the cycle, such as the fade between red and green will produce an orange/yellow glow for a short period before fully changing to green.

    Posted by Michael Lockhart on Tuesday, 31 January 2017
Posted by Richard, Friday, 9 December 2016 on product Colour Changing USB Lamp Kit
  • 0
    vote
    A:

    Hi Richard, This would provide 6V’s to the kit, the LED on the kit is only rated to 5V’s. As such you would need to use a 3X AA battery cage, this would then provide you with 4.5V’s and this would be fine. An example of the battery cages we do can be viewed here, https://www.kitronik.co.uk/catalogsearch/result/?cat=0&q=3X+AA

    Posted by Michael Lockhart on Friday, 9 December 2016
Posted by Wendy H Hayes, Monday, 9 November 2015 on product Colour Changing USB Lamp Kit
Posted by Kate, Monday, 2 November 2015 on product Colour Changing USB Lamp Kit
  • 0
    vote
    A:

    The sequence for the colour changing LED used in the kit is as followed: Red, green, blue, yellow, cyan, magenta then back to the beginning of the cycle. As the change is a gentle fade you do get colours between these in the cycle, such as the fade between red and green will produce an orange/yellow glow for a short period before fully changing to green. The time between each change varies depending on what the next colour in the sequence is, so the amount of time the colour stays on for does vary slightly although there isn’t a large difference in time variations.

    Posted by Michael Lockhart on Monday, 2 November 2015
Posted by Mike Penn, Wednesday, 11 March 2015 on product Colour Changing USB Lamp Kit
  • 0
    vote
    A:

    The actual width of the PCB is about 16.5mm, as stated on the product page. However there appears to have been a mistake made when the technical diagram were created for the teaching notes. Thank you for pointing this mistake out to us.

    Posted by Michael Lockhart on Wednesday, 11 March 2015
Posted by Ryan Ball, Tuesday, 10 March 2015 on product Colour Changing USB Lamp Kit
  • 0
    vote
    A:

    The colour changing LED 3527 is designed to run off a 2.7 to 5V supply and contains three LEDs, one for red, green and blue. There is a microcontroller inside the LED that turns on the different LEDs to make the required colour so if you want red then the red LED is turned on, but for purple it is both the red and the blue LED that is turned on. This means that the LED will take twice the power when it is showing purple than when it shows red. Using a current limit resistor with an LED only works when the current it consumes is constant, in this case since the current varies then it isn’t a good idea. It might be possible to get the voltage over the LED to stay in the range 2.7 to 5V however this might not be possible and could be very tricky and even if you managed it the brightness of the LED would vary depending on the colour. So what you should do with the LED is use a 5V supply or regulate to 5V if you must use a 12V supply. A suitable 5V supply is:
    www.kitronik.co.uk/2265

    Posted by Michael Lockhart on Tuesday, 10 March 2015
Posted by Simon Fowler, Tuesday, 10 March 2015 on product Colour Changing USB Lamp Kit
  • 0
    vote
    A:

    The easiest way to do this is to use the Light activated switch circuit, code 2112. You would then need to buy the USB power cable, code 4101 which would be connected to the power terminal on the board, and the colour changing LED, code 3591 which would be connected to the output terminal on the board.

    Posted by Michael Lockhart on Tuesday, 10 March 2015
Posted by Jo Bray, Wednesday, 11 February 2015 on product Colour Changing USB Lamp Kit
  • 0
    vote
    A:

    Hi Jo, Yes the kit is safe to set in resin.

    Posted by Michael Lockhart on Wednesday, 11 February 2015
Posted by Jason Slater, Wednesday, 11 February 2015 on product Colour Changing USB Lamp Kit
  • 0
    vote
    A:

    We don’t sell any connectors that would connect up with the lead you have. Sorry

    Posted by Michael Lockhart on Wednesday, 11 February 2015
Posted by ernest Addo-boateng, Wednesday, 1 October 2014 on product Colour Changing USB Lamp Kit
  • 0
    vote
    A: Glad you have it working. Can I ask what was causing it to fail?
    Posted by Aaron Sturman on Wednesday, 1 October 2014
Posted by ernest Addo-boateng, Friday, 26 September 2014 on product Colour Changing USB Lamp Kit
  • 0
    vote
    A: Hi, what do you mean by blowing up?
    Posted by Aaron Sturman on Friday, 26 September 2014
Posted by james, Wednesday, 2 July 2014 on product Colour Changing USB Lamp Kit
  • 0
    vote
    A: You can add another LED in parallel without any issues. No additional resistor is needed as the one that is in there anyway is a 0 Ohm link. The colour changing LED can accept 2.4V - 5V, your USB port will be at 5V.
    Posted by Aaron Sturman on Wednesday, 2 July 2014
Posted by Andy, Tuesday, 8 January 2013 on product Colour Changing USB Lamp Kit
  • 0
    vote
    A: The USB port, the cable and the switch will be fine with the extra current of one additional LED. If you are using a colour changing LED with a standard LED, I?d connect the standard LED and current limit resistor to the board and then connect the colour changing LED to the board afterwards. Whilst the board has a space for a resistor and the kit is supplied with a zero ohm resistor this is nothing more than a wire link. Having connected the standard LED and resistor to the board the flashing LED can be connected across flat edge of the standard LED and the pad on the resistor nearest the mounting hole.
    Posted by Geoff Hampson on Tuesday, 8 January 2013

Ask Your Question

* Required Fields

Physical characteristics:

  • PCB Length: 44mm.
  • PCB Width: 16mm.
  • PCB Component Count: 4.

Electrical characteristics:

  • Voltage Nominal: 5V.
  • Voltage Range: 4V - 5.5V.
  • Current Max at Nominal Voltage: 67mA.
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Gallery USB Lamp – Meadows Community
USB Lamp by Meadows Community.
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Gallery USB Lamp – Great Houghton School
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