3D Spirit Detector - Surround Sound
Fritsl_s Spirit Detector has been niggling me for more than a year now.
I have used the circuit he described and multiplied it by 3x.
The Idea is so :- Place an antenna on each sensor and orientate them in the XYZ format
The sensors pick up the slightest disturbance in the "Ether" (Electro Static Charge or ESC)
The neat thing is that this disturbance can be plotted or followed in real time.
The Diagram below shows such a plot, i flew a peice of "Depron" into the 3D air pocket.
My Parallax Propeller spits out the "RealTime" XYZ coords onto the serial bus @115200 Baud flawlessly.
I use a Program called "Real Term" to capture this data stream and the end result is plotted with "Rstudio"
The second part of the Propellor program monitors 3 ADC channels and the proportional(!) signal is ported to a Harmonization Cog (HC).
The HC basically is a frequency follower, ie it takes the raw ESC signal and "Tunes" it to the nearest tone of a harmonic series, in my case i used a "Tween" of 110Hz
So when all three channels are "Singing" together at least they are almost harmonic "in-Sync" , you will notice this in the video whilst i am playing tunes with my "Spirit Sticks".