SCOTTISH TRADE COUNTER
(Primarily stuff you can't get elsewhere.)
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RGB CONTROLLER CHIP
View the data sheet.
A chip dedicated to the task of generating cool colour changing effects with RGB LED lighting.
There are 23 programs with up to sixteen speed or colour options on each. These range from psychedelic colour strobing through to very smooth and dignified architectural colour changing with a massive pallete of over 16 million colours and a randomiser that produces a continuous stream of over 8 million data bits for truly random results.
Don't confuse this chip with the tacky colour changers that just go through a very short repetitive colour routine. This chip has a virtually endless array of subtle colour moves in a range of colour palletes.
Just to add the icing to the cake, the last program settings are stored to non volatile memory (about 15 seconds after the last button press) so that the unit always powers up in your favourite mode.
The tech specs are equally impressive with a very low component count, a PWM frequency of about 350Hz and an intensity resolution of 8 bits giving each colour a range of 256 intensities.
The output capability is 20mA which can either be used to drive a few LEDs directly for ornamental applications, or used to drive power switching components like Darlington transistors or MOSFET's. The chip incorporates weak pull up resistors for the program selection buttons.
RGB chip £4.65 each.
Pack of 10 RGB chips at 10% discount £41.80 (£4.18 each)
Pack of 25 RGB chips at 20% discount £93.00 (£3.72 each)
Pack of 100 RGB chips at 30% discount £325.00 (£3.25 each)
FULL RGB CONTROLLER KIT
Visit the project page.
They say that simplicity is reliability, and that was certainly the design concept behind this kit. It has a very low component count, but still somehow manages to put multi thousand dollar architectural lighting systems to shame, primarily by it's virtue of being a "fit and forget" device. Once set with your preferred options it will always power up in the correct mode for the life of the installation.
This module can drive up to 1000 LEDs per channel without heatsinks. This assumes a 24V supply, efficiently wired series strings of LEDs and a MOSFET current of 5A. With the MOSFETs mounted off board on a heatsink with suitably rated and protected wiring, the controller could drive much larger LED arrays.
This quality kit uses professional grade components throughout from the gold-insert turned pin socket and rising clamp connectors to the good beefy MOSFET output stages.
The board is manufactured in FR4 laminate and is fully tinned and screen printed with a solder resist mask and component placement data for all the components supplied as shown above.
A set of four mounting feet and matching fixing screws are supplied for mounting the module in your desired location.
Refer to the controller page for assembly tips.
This kit has been amazingly popular, with a lot of repeat sales.
I'd love to know what sort of applications these are being used in. I know they are currently running club lighting, signs, techno art, limousine lights, under car lighting, mood lighting and special effects.
RGB controller kit £15.85 each.
Pack of 5 RGB controller kits at 10% discount £71.32 (£14.26 each)
BARE MR16 SUPERFLUX "HAPPY COCK" PCB
(Happy Cock give you maximum big joy.)
Visit the project page.
Get some cheap LEDs at Phenoptix.com.
Now in standard PCB colour with green solder resist.
A very nice PCB designed to fit into standard MR16 downlight frames (12V 50W downlights). It is designed to take nine superflux 4-pin LEDs (3 or 5mm lens) with either three of each colour for RGB colour mixing, a cluster of nine of a single colour or even a random combination as you please (red and blue mix looks good).
The board has four resistor positions with one each for the green and blue circuits and two in series for the red circuit to spread the heat dissipation due to the lower forward voltage of reds.
The board is manufactured in FR4 and is ROHS compliant with the extra touch of gold plated pads making it very easy to solder. There are four pads on the back for wire connection R,G,B and +. For single colour use just bridge the R,G & B together.
Each circuit is three LEDs and resistor/s in series and the PCB is designed for use at 12V.
Yes it does say "HAPPY COCK" on the back! It's a whimsical reference to it's Chinese manufacture.
Happy Cock MR16 PCB £1.90 each.
Happy Cock MR16 PCB £10.00 for six.
Happy Cock MR16 PCB £18.00 for twelve.
LARGE BARE SUPERFLUX PCB
Visit the project page.
Get some cheap LEDs at Phenoptix.com.
An excellent PCB that is designed to fit into a standard 150W halogen floodlight case. It can either accommodate 18 each of red, green and blue superflux LEDs (3 or 5mm lens) for colour mixing with RGB controllers, or 54 of one colour.
Other applications include low energy (solar) lighting, vehicle lighting, emergency lighting, outdoor lighting or Hydroponic red/blue grow lights.
An all green version looks fantastic for spooky halloween FX!
Large superflux PCB £3.48 each.
Pack of 5 large superflux PCBs at 10% discount £15.66 (£3.13 each)
Pack of 10 large superflux PCBs at 20% discount £27.84 (£2.78 each)
FULL RGB KNOB CONTROL KIT
Visit the project page.
By popular request... A knob based RGB controller kit for colour mixing with LEDs. This kit is different from the other controller in that it uses a single knob to choose colours and enable the automatic mode.
To use the controller connect your LED arrays (the PCB's above are perfect for this) and a power supply. Then push the knob once and the LEDs will gently dim up. You can then change the colour by turning the knob in either direction to scroll back and forth through the rainbow. Press and hold it in for two seconds and the controller goes into auto mode and uses an 8 million bit randomiser to select colours and gently fade between them, pausing briefly on each one.
The controller remembers it's last state when it was powered down and when power is restored it powers up in the last mode. When it powers up in "on" mode it recalls the last stored colour. A colour is stored by pressing the knob twice to dim the output off and then on again. No flashing or pulsing. Everything is done in gentle sweeps.
RGB knob control kit £18.85 each.
Pack of 5 RGB knob control kits at 10% discount £84.83 (£16.96 each)
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Any questions? Please feel free to ask.
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Back to "Things to make and do."
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