A device which can be fixed to the side of an aquarium to dispense small amounts of fish food at regular intervals of time is described. The quantity of food supplied can be adjusted to allow for the size and the number of fish to be fed. The fish feeder is battery powered and uses a low-power CMOS frequency divider.
Electronic fish feeder
Ein elektronischer Fisch-Fuetterer
Practical Wireless ; 54 , 5 ; 36-39
1978
4 Seiten
Article (Journal)
English