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far away from the water pump
Comfort And Safety
10 Finch Robots
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ELECFREAKS Classroom Smart Pet Feeder Kit Age 5-12 far away from the waterDescription ELECFREAKS Classroom Smart Pet Feeder Kit uses a micro: bit v2, an IOT: bit expansion board, a PIR sensor from the Octopus series as well as a Sonar: bit, a 180 9g servo, and a cute little wooden house as components. The working principle of the smart pet feeder is as follows: firstly, the PIR sensor is responsible for detecting whether it is a pet approaching or not; secondly, the sonar: bit is used to detect whether the pet reaches
