Eric Escobar has a very neat Pi-powered solution to the problem of night-time chicken imprisonment, which is safer than some others we’ve seen, which use linear actuators. This door’s lowered using gravity, so there will be no very, very, very slow and eventually deadly crushing of any chickens or small children with Eric’s setup. The door is programmed to be lowered at a certain time of day, once it’s dark enough for all the chickens to have moved indoors.
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