FAB LAB DC

FAB ACADEMY 2011

ROB HALLIGAN

FINAL PROJECT DESCRIPTION

 

Make a controller for as many of the processes of a theoretical or prototype alfalfa sprout-growing business. When you have numerous batches growing and they are at various stages of their growth cycle, it gets complicated. Automating the simple, frequent, tedious, and/or timed task will reduce production costs.

Performance requirements

State - The controller should record and indicate when each batch is started and when it is ready for harvest.

Timing - Sprouts need to be rinsed twice a day. They need light when they are 4 days in to their growth cycle.

Humidity - control for humidity. Register and indicate when the humidity is too or too low.

Light - Turn the on lights at day 4 for 1 day.

Design parameters

The controller should be contained n a durable water resistant enclosure.

My limited understanding of electronics keeps me from designing the enclosure for the controller. At this point, I'll assume a shoe box with inputs for power, light sensor, and humidity sensor on the sides. It needs a set-start button, a light to indicate that batch has started, when its time to rinse, humidity is to high or low, and where the batch is in the growth cycle on the front. The rear should be attachable to the wall.