the project website of self.detach is finally online:
and a movie (hi-res on the website mentioned above)
[youtube BQBWXaDDZrM]
in germany, when you want to say “to throw a spanner in the works”, you say “sand ins getriebe streuen” which can be translated as “pour sand in the gear”. which has now become a problem…
the sesame dispenser we wanted to use

is quickly blocked by the sand… and not very precise…

this is clearly not the way to go…
first experiments with a servo controlled by an arduino board showed that the servos are way too slow to enable a precise dosage of sand, at least in the way we used to think we’d set it up (see previous post).

heres the next proposal, using a screw.

still using a servo, but it has to be hacked in order to be able to spin a full 360 degrees.
this is as small as it can get. now for the antenna. thanks again, tim!


RFID Detector (left) producing a UHF field, detected by RFID Detector (middle left), Arduino counting Detected Fields (middle right) and driving a 7-Segment LED display (right). the CCTV Awarable has a Friend now.
todo: