Hi,
I attached a sketch to first post. If there are bugs, please, report back.
Currently working on DUE version, same concept but w/o servo, visualization on android tablet, like in the last blog post
- ultrasonic 3D radar.
Not sure, if you can watch video posted over youtube for this last project - ultrasonic radar, counters show dead activity in the last 2 weeks, probably Z-government of the world block the channel.
Keep visiting.