Lego power functions sensor

[Zerobricks]

This sensor uses the PF's own weakness for its good. It uses some basic PF parts with a couple of black plates.

[Burf2000]

This sensor uses the PF's own weakness for its good. It uses some basic PF parts with a couple of black plates.

Nice idea, would the handset go flat quite quickly?

[Zerobricks]

I dont think it would go out much faster than by regular use.

[Brickthus]

I dont think it would go out much faster than by regular use.

Interesting that a hand can act as an infra-red mirror.

Worth trying with walls of different colours of bricks to see if different distances reflect the same amount. I would expect more reflection from red/white/orange than from blue or black.

I used the handsets as binary position sensors to make a set of unconnected automated PF machines talk to each other.

Whilst the position function is a bit more definite than a reflection function, the use of the handset batteries is almost constant, as it is for the motor supplies. LiPo batteries and chargers could supply the motors but the handsets need 4.5V.

This system could be used with a static machine and one or more roving machines, possibly with up to 8 machines in the system! For that, each machine would transmit on 1 channel, red or blue, with the next machine listening to a particular channel of red or blue, but not both. Machines could also monitor both channels and perform AND, OR or Exclusive-OR logic functions. I had the idea that PF could do the logic similar to my pneumatic pick-and-place robot.

Mark

[Zerobricks]

You have any video of your automatic machine?