I am not sure where this should go, so here it is.
I have been doing sequenced xmas light shows for a few years and I was looking at making a light display along my front fence that would follow someone as they walked past.
I can't imagine it should be too hard, but just don't know where to start.
Obviously some sensors mounted along the fence line to detect the movement and then the control outputted to the light drivers.
I use DMX and e1.31 to drive the lights now using a Pi to output the sequence.
Has anyone heard of this being done, in which case I can save a bunch of time, or what are peoples recommendations for sensors?
Any help would be appreciated.