Difference between revisions of "Henmulator"
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==Enclosure== | ==Enclosure== | ||
| − | The henmulator enclosure is an old upright freezer that stopped working a few months before the henmulator project began. It's internal volume is around | + | The henmulator enclosure is an old upright freezer that stopped working a few months before the henmulator project began. It's internal volume is around 16 cubic feet (450 li) It was modified by removing the built-in shelves, cutting a window and vents into the door and re-trimming the interior of the door, painting the door yellow and adding draw latches. The latches were added because the door failed to seal after it was modified. [[Andre Houssney|Andre]] recommends ''not'' removing the magnetic seal of freezers while modifying them because it's difficult to reinstall them exactly flat making a good seal difficult. (This particular freezer door, however, had prior issues with the seal being fully shut anyway.) |
==Working parts== | ==Working parts== | ||
Revision as of 23:50, 7 February 2015
The Henmulator (hen emulator) is Agronomo and Jacob Springs Farm's inaugural project to incorporate open source hardware and software into useful farm devices.
Contents
Earlier versions
Mike Soltys' engineering class at the University of Colorado created the first version of the henmulator - found here. It was a plywood box with an arduino system controlling temperature and turning off the egg turner after 18 days of incubation. The project was never entirely working but it was an important step in developing the henmulator.
Enclosure
The henmulator enclosure is an old upright freezer that stopped working a few months before the henmulator project began. It's internal volume is around 16 cubic feet (450 li) It was modified by removing the built-in shelves, cutting a window and vents into the door and re-trimming the interior of the door, painting the door yellow and adding draw latches. The latches were added because the door failed to seal after it was modified. Andre recommends not removing the magnetic seal of freezers while modifying them because it's difficult to reinstall them exactly flat making a good seal difficult. (This particular freezer door, however, had prior issues with the seal being fully shut anyway.)
Working parts
Air circulation
Two 110v fans salvaged from microwave ovens circulate the air in the Henmulator, on at each end of a duct that pulls air from the (inside) top of the enclosure and pushes it out at the bottom across the heating element. Andre estimates that one fan would probably suffice.
Controls
The controls are an arduino pro mini with a HTU21D humidity and temperature sensor and two relays. one relay controls the heater and the other controls the humidifier.
Humidifier
Heater
Arduino Code
The arduino code for the first working version of the henmulator can be found at the agronimo github page
