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NOTE: This page references FED1.0, published by Nguyen et al: https://www.ncbi.nlm.nih.gov/pubmed/27060385
This page will remain up for historical reasons, but if you are new to FED we suggest you start with the new version, FED2. We have made several improvements that make it easier and cheaper to build. Instructions here: https://hackaday.io/project/72964-feeding-experimentation-device-fed-20
FED is an open source system to measure food intake in rodents. FED is low power (it runs on batteries for 5-7 days), small, and accurate. The system uses a photo interrupter to detect the presence of a food pellet, and dispenses a new pellet when the pellet is removed. Time and quantity of pellets dispensed are written to an SD card for later analysis.
Click the links on the right to learn more.
