Kollula

If it's bluetooth then the pairing is probably done by holding the power button on both devices to put them into search/discovery mode, much the same way a bluetooth mouse or headset works.

Looks pretty cool, I wonder if something like the following would be possible with lego

I have already experimented with a lot of designs and unfortunately most of them don't work reliably. A 1 cylinder LPE requires a push to get it going and without some kind of momentum it just seems to end up going backwards and forwards. A 2 cylinder with 90 degree offset at least stays in one direction but there is a point in its rotation which requires a huge amount of air pressure to overcome, it basically stalls for a while with lego pumps driving it so I have had to settle on the 3 cylinder design to have something that works without needing an external air compressor. If presentation is important, does this mean it requires a lot of custom parts purchasing to make it look uniform too? I have mostly been using the Arocs+BWE sets to build mine with a few additional pumps bought.

I am attempting to make a tank driven by a LPE, but with 6 pumps and 3 cylinders driving the LPE it is still extremely slow with very little power. Would it be held against the entry if it's slower than the Bucket Wheel Excavator?