Colour changing light
Matthew has severe cerebral palsy and finds lights of changing colours very soothing. However the conventional colour-changing oil plate light sources are very hot and cannot be safely left on unattended.
A 40mm length of flat plastic trunking had a series of high intensity LEDs fitted in groups of three, one each of red, green and blue, at about 150mm intervals. The lights were wired to a three channel PIC light control kit which cycled them through varying intensities. By using red green and blue sources the colours can be mixed to produce any other colour. The light bar is positioned so the lights wash over the ceiling producing gently changing colours. The lights are completely cool.
Matthew finds the lights very soothing and they can be left on all the time in complete safety.
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