Quozl's Irrigation Controller

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Introduction

Quozl's outback vegetable garden was about to suffer from lack of water because of a decline in the pump pressure as the pump aged. So he replaced the single control valve with three valves, and separated the garden into three control sections. The controller distributed the water at higher pressure to the three sections.

Features

rotated irrigation between three water valves,
improved water pressure,
replaced existing valve thus saving on cabling.

Photographs

Figure 1, Front Panel

Figure 2, Circuit Board

Figure 3, Side View, LEDS

Figure 3, Side View, Cabling

Documentation

requirements analysis,
functional specification,
design specification, (note that only version 0.1 was built ... it was found to be satisfactory)
parts list

Circuit Schematic

schematic.ps (a postscript file)

Source Code

sprinkler.asm main program for microcontroller,
Makefile for building on Linux,

Page Change Log

Date	Change
2002-12-23	Add inline schematic.
2002-07-16	Add HTML wrapper.

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