VACS:Projects:Software:Ebcs

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Revision as of 22:26, 1 June 2006 by Stephane.Carrez (Talk | contribs)

Project	Embedded Bathroom Control System
Date	2001 - 2004
Goals	Control the fan, light, radio in a bathroom based on presence, temperature and humidity
Dependencies	GNU 68HC1x

Overview

The Embedded Bathroom Control System is a small system based on a 68HC11 and designed to:

This system has several hardware components:

A 68hc11 board with 32Kb of ROM and 32Kb of RAM. This board runs the EBCS software.
An LCD board which provides a 2x16 LCD display with 4 buttons.
A Power Control board which has a transformer and 2 triacs (one for fan and one for light).
A Sensor module which provides temperature, humidity and presence detection.
A I/O board connected to the CPU board. This is the interface with the sensors, the power control board and the LCD panel.

The IO board:

Documentation on the chips used by EBCS IO board.

</TR>

Documentation (1)
{4xxx/CD40106.pdf	Hex schmitt triggers
4xxx/TL071.pdf	Low Noise Single J-FET operational amplifiers
vreg/L7800.pdf	Positive voltage regulator (7805, 7812, 7815, ...).
transistors/BD140.pdf	PNP Silicon Transistor
transistors/BC237.pdf	NPN Epitaxial Silicon Transistor
transistors/BC557.pdf	PNP Epitaxial Silicon Transistor
aop/TL071.pdf Low Noise J-FET Operational Amplifier

(1) Documentation publicly available on various constructor web sites and copied here for archiving.

The power control board:

Documentation on the chips used by EBCS Power board.

</TR>

Documentation (1)
triacs/BT137.pdf	Triacs (I've used a BT137-600).
triacs/moc3041.pdf	6-Pin DIP Zero-Cross Optoisolators Triac Driver Output
transistors/BC549.pdf	NPN Silicon Transistor
transformers/myrra_45000.gif	Transformer (http://www.myrra.fr: Myrra ).
opto/4N35.pdf	Optocoupler with Phototransistor Output

(1) Documentation publicly available on various constructor web sites and copied here for archiving.