Asked
— Edited
The Giant Spider Of Liverpool, La Princesse
How many Ez-b4's do you think it would take to control this spider? this is nice I wish I could have seen it in person.. 
Frequency Detector
— Detect audio frequencies via PC microphone (FFT), output a variable and drive servos within configurable min/max ranges with waveform feedback.
Try it →
Very cool. Looks like all Hydraulics and is build and operated like a backhoe. I see the "driver" operating leavers near the head.