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led color sensor
Isn´t it a bit complicated? Keep it simple.
The LED is not only light emitting but also light detecting.
So for the desired three colors: red, green and yellow take
LEDs- The beauty behind: They include the filter function ;o)
Some OpAmps and A/D converter and that´s it.
wolf
motor current sensing
I would recommend Allegro Hall- effect sensors. They even offer now a complete
family of current sensors. But with the hall- effect sensors you are able to design
an absolutely linear current or voltage sensor according to your demands.
By this technology power circuit and...
The spectrum range will be up to 100 KHz.
By the way, the how is of less importance - it is the question what is
achieveable under the given conditions. Reason for this is to set up
some realistic specifications for a bunch of external design gurus.
So far all your input is really...
Dear Analog IC Design Gurus,
not being a specialist (or even a bloody beginner in Chip design) I am
trapped by the question for the smallest thermal noise possible in
CMOS- technology.
For a project I am looking for a CMOS- Opamp, 0,35um technology, 3,3V
supply, rail-to-rail (input and output)...
cubicle boss sensor
I would strongly recommend a KMY24 radar sensor. A completely hidden
mount, e.g. behind wood, in a wall or in a book etc. is possible.
The KMY24 consists of two sensors- so one could even identify the
direction and speed of the suspect.
With some efforts I could achieve a...
palm III, key board
May be a change in policy ;o)) - so just take a jump to
**broken link removed**
and voilà there you get source code and bin files for the project.
(Look for "sourcecode")
Hints for the sourcecode: global.inc is part of TASM- Assembler - just the
register definitions of...
palm III, key board
The application includes also the required AT89C2051 snippets- if you
need a programmer for the microcontroller, you have a couple of
choices:
Contact a local amateurs radio club- they are most likely capable of
programming a 2051
Contact a local High School or University...
palm III, key board
Just visit
http://www.mujweb.cz/www/hysy/EasyType.htm
There is a complete package, including soft- and hardware to
introduce a standard PC- Keyboard to any Palm.
Takes advantage of an AT89C2051 - also helpful to attach
PC-keyboards to other projects.
Hope it helps
hagen
Check
http://www.mauritron.co.uk/
or
http://www.servicemanuals.co.uk
They sell manuals (15 Pounds each) and the list reads
HEWLETT PACKARD. HP4332A. (NOT IN STOCK - PLEASE ENQUIRE)
in germany a similar service is provides by
http://www.schaltungsdienst.de/gb/frameset.html
or...
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