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By Systembolaget
#193874
Dear forum members,

I have a series of luminaires that come with either a solid brass, steel or aluminium casing.

They each house MEAN WELL LDD-x DC/DC PSUs like these ones here http://www.meanwell-bg.com/files/Models/LDD/LDD-L.pdf that drive the luminaire's LEDs. These PSUs can be dimmed via a PWM signal.

Which Sparkfun circuitry would I have to buy so that touching the metal luminaire casing will trigger either on/off switching or dimming signals that the PWM input of the PSU can understand?

Any hints very much appreciated!