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Discussion Groups
Sensor
Comp.Arch.Embedded is a worldwide Usenet news group that is used to discuss various aspects of Embedded Systems development.
We found 367 threads matching "sensor"
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The most relevant threads are listed first
GPS and Barometric pressure sensor recommendation please
Sonoman - 01:27 02-08-04
Hi all:
I am in the process of designing a project for school. This project
requires a GPS sensor and a barometric pressure sensor to determine
position in space. I have not much knowledge about sensors yet but I am
trying. I have spent several hours googling a few terms and so far I
came u...
Help with OV7620 sensor connected to FPGA
raul_ma - 21:09 05-07-07
I'm trying to implement an OV7620 sensor on a Spartan 3 (Xilinx FPGA) to
display on VGA, the problem is to syncronize the sensor data with VGA
exit. The sensor is already programed to send data in progressive mode by
2 channels:
channel Y G G G G
channel UV B R B R
Please, somebody can tel...Problems with UART
elsaximena - 09:37 26-05-05
HI...
I am programming with a MAVRIC II that uses the ATMEGA 128 but I connect
GP2D12 infrarred sensor to the UART and I use the hyperterminal for see th
output of the sensor but the only thing that I receive was:
Éò@}@@wp@}@pNstr@¶ÏÌôóxw@¶ÏÌôó
What can I do??? The same thing happened with...1-25 m range sensor
Ricardo Perezzo - 04:27 11-09-05
What type of range (distance) measurement sensor (and/or sensor combinations
to minimize the total cost) available with the following specs
i. Range : 1-25 meters
ii.Accuracy : 2-5cm
iii. Max spot size at target : 10cm radius @ 25m
iv. Repetation rate : 10Hz
v. Price : (Y...Tapping signal from digital scale's weight sensor
Cedi - 23:41 23-05-06
Hi Group,
I intend to make a weight aqcuistion digital system. For the sensor I
bought commercial digital scale that
have range 0-5kg with 1gr resolution. (TANITA KD-403) After I opened
the casing, I found that the load sensor
and the processor connected by 4 wire: V+, V-, S+, and S- (this ...Re: Image Sensor Interface
Bob - 02:48 08-12-07
On Dec 7, 12:56 am, pes wrote:
> Hi,
>
> I' m looking for solutions to interface a 1.3Mpixels CMOS image sensor,
> I' ve thought to use a FPGA but it seems to be a little expensive.
> What about the market? Is there dedicated circuits to realize the
> interface and stock the data? Is ...cmos image sensor to usb
momaley79 - 07:42 28-09-07
Hello,
I'm working on a personal project where I'd like to basically make my
own webcam from scratch. I am looking for a camera in the VGA/15fps
range. The most important factor in my design is form factor. I'd like
to make it as "pencil-like" as possible. For example, I basically want
someth...Ultrasonic Sensor Reciver Problem
Dibyendu - 00:59 11-08-07
Hi,
I have built the ultrasonic sensor ranger with the help of
"2002MAR08_RFD_DA_AN.PDF" but it is not working.
Explanation of the sensor:
Base on the availability of the component I choose,
( I )
1. ICM7555 instead of TLC555
2. CA3130 instead of CA5160 and
3. LM567.
4. PIEZO ULTRA...Re: Wheel Encoder
larwe - 12:20 27-03-06
Nav2u wrote:
> I have made a wheel encoder (to sense the wheel position) which gives
> me a logic level output, the encoder detects the holes in a wheel and
> generates a pulse every time a hole is detected. There are 6 holes in
Do you REALLY mean it generates a pulse once and only once...Re: short / open circuit of a sensor
Tamilmaran S - 01:05 03-07-06
rjames.clarke@gmail.com wrote:
> We in the controls business often set a sensors active range for .5 to
> 4.5 volts. So if we read 4.5 we know the sensor is bad.
>
> Cuts down on the resolution I know, but when cost of believing a bad
> sensor is high, as in flight controls we make t...HUmidity sensor
Giorgis - 18:03 09-10-06
I would like to design a datalogger with a temp & humidity sensor. I
would like to make the whole thing compact and self contained but never
the less accurate. Any pointers ?
Thanks
G
...(SPI equipped) Sensor Data to PC
hhausen - 11:29 12-07-06
Hello, I'm new in this group, and I hope this is the right one to place
my question.
I am trying to connect a tilt sensor to a pc. The sensor device (Analog
Devices' ADIS16201) is accessable via spi. Unfotunately, I'm not very
conversant with programming Micros not even with programming serial
...Interrupt MBF200
=?ISO-8859-15?Q?Johannes_Sch=F6ller?= - 10:49 29-07-06
Hi,
I have a problem with the interrupt on the MBF200 fingerprint sensor.
As stated in the datasheet
(www.fujitsu.com/downloads/MICRO/fma/pdf/mbf200_ds.pdf) a interrupt
should occur if the sensor is touched and the appropriate bits in the
ICR are set. Interface mode is SPI. Trying to set the...Baffled by Honeywell proximity sensor
21:57 30-12-04
I've been given a sample Honeywell capacitative proximity sensor by a
client. He wants me to build a small micro-based project to interface
with it. The sensor is shipped in a bag labeled "992AA12AN-A2", and the
documentation for "992 series" sensors consists of four letter-sized
sides, most of ...Ultrasonic Sensor
Dibyendu - 23:30 08-08-07
Hi,
I have built the ultrasonic sensor ranger with the help of
http://www.eetasia.com/ARTICLES/2002MAR/2002MAR08_RFD_DA_AN.PDF
but it is not working.
Explanation of the sensor:
Base on the availability of the component I choose,
( I )
1. ICM7555 instead of TLC555
2. CA3130 inste...Lists of SPI interface paripheral chips?
Dave - 13:20 09-06-06
As a follow on to my previous message about building sensors around the
MSP430 chip, I'm curious if anybody has a good resource for finding
what paripheral/interface chips are available with an SPI interface.
The MSP430 can be interfaced with lots of chips through other means,
but using the SPI ...ATtiny temperature sensor
16:20 13-07-07
Hi,
I have an ATtiny261 microcontroller in my application, and I was
thinking of making use of its built in temperature sensor. However I
notice the accuracy spec is +-10 degrees C, which to me seems absurdly
useless. Has anyone used it before? Am I misinterpreting the spec?
Thanks,
Mike...Zigbee Sensor Network
16:24 01-05-08
Hi,
I would like to use an off the shelf ZigBee card to interface with
temperature sensors (could be thermocouples or RTDs in that handle -40
to 500 degC). Of course I will need a signal conditioning board to
interface with the ZigBee module. However, I'm not sure what analog
input voltages c...Easy way to implement WiFi sensor.
11:24 03-03-06
I have a sensor I want to put on my wifi network. What is the cheapest
easy way to do this.
Prefer a solution that I can embed in my electronics.
thanks
bob
...Ultrasonic Sensor Receiver Problem
Dibyendu - 05:43 20-08-07
Hi,
I have built the ultrasonic sensor ranger with the help of
"2002MAR08_RFD_DA_AN.PDF" but it is not working.
Explanation of the sensor:
Base on the availability of the component I choose,
( I )
1. ICM7555 instead of TLC555
2. CA3130 instead of CA5160 and
3. LM567.
4. PIEZO ULTRA...Re: Contact pressure/force sensor
Bryan Hackney - 22:37 24-06-06
jsnehal@gmail.com wrote:
> I am looking for tactile pressure/force sensor with digital output that
> I
> could embed in my aaplication. That should sense small variation in
> pressure/force put by finger on the object.Could anyone please suggest
> products of different manufacturers?
>
...N to 1 to M SMS based telemetry
Gustav Basso - 03:55 22-07-05
We have N number of sensors in GSM and GPRS covered area.
We want from these sensor to send their measurements on pre-defined times to
a centre for data collection.
Sensor data length around 80bytes and each sensor as 4 byte long unique
identification number.
Sensors are build around AVR or P...Fingerprint Biometrics sensors
ted - 05:41 17-03-04
Where can I get a unit containing a fingerprint sensor, plus maybe a
serial or USB interface? It is important that this should include a
development kit so that we can get at the bitmap images produced
Alternatively a source for say the sensor on a PCB and some simple
interfacing.
We are aw...Low power motion sensor
amerdsp - 23:44 23-05-06
What is the motion sensor that has the lowest power consumption?
Distance is about 10 feet or so.
Any ideas?
Thank you,
A
...Want to know about Finger Print Sensors
sri - 11:14 06-01-07
HI
I m Sridar new member of this group.
I wish u all happy new year.
M fresh B.E. Electrical and Electronics Engg. graduate. Now m doing
Embedded system and design course.
Can any one clarify my queries ?
1.I wish to do my project on finger print sensor as part of my course.
I dont know...Low cost image sensor
03:53 28-06-05
Hi,
I have been searching the web for a low cost image sensor.
The application is for reading a type of barcode, approximately 20mm x
5mm, but I could make do with an area as small as 10mm x 3mm. A
resolution of 0.1mm would be more than adequate, and I only require
monochrome. Ideally I would l...Re: Image processing in Fpga
05:09 25-12-07
On Sunday, in article
simyunyoung@gmail.com "simyunyoung" wrote:
> Any guys have image sensor experience?
Yes, several here..
> The image I'm going to use has to be in grayscale and down sampled.
So..
> As for trying to convert the image into grayscale form i was thinki...e-field sensor and fuel.
RigoJano - 12:42 07-05-04
Hi,
Anybody has used motorola's e-field sensor measuring fuel?. Is it possible
to explode the liquid with e-field?
Thanks and best regards,
Rodrigo.
...C3088 CMOS Imaging Sensor Questions
16:37 13-07-06
Hi all,
I'm looking to purchase the C3088 CMOS imaging sensor. I plan to
interface it with a PIC microcontroller in order to do some image
processing on-board my robot. I was wondering if someone could take a
moment and answer a couple of questions for me.
(1) Would this be reasonable cod...Temperature sensor, SPI or I2C , DIP package
01:59 08-08-05
Hi,
I am looking for
Temperature sensor, SPI or I2C , DIP package
I browsed web for few like LM74,LM75 etc but they do not come in DIP
package.
Moslty they are in surface mount packages.
Also I am using www.digikey.com online for shopping components.
What are the decent alternatives? I ...I2C off board distances
Colin MacDougall - 16:01 16-09-04
Has anyone any experience of running an I2C bus from
a PCB to a remote I2C device ? I am thinking of
connecting a remote Dallas Semiconductor I2C temperature
sensor IC to a micro over a length of 4 or 5 metres of
wire. The temp sensor would be fixed to the ceiling to
measure room temperature an...Distance sensor 10cm-10m @50Hz
06:32 24-03-05
Do you know any small size, light weight distance sensor with the following
specs;
* Range : 10cm to 1000cm (10meter )
* Rate : 50 Hz (50 measurements/sec)
* Accuracy : 1cm
* Must operate on any surface (except transparent surfaces like glass)
* Power requirement : Less ...low cost networking suggestions needed
Mark - 16:09 03-05-06
We're putting together a network of 10 environmental sensor stations that
connect to a central terminal (ie. a PC). Each sensor generates about 500
bytes/sec. Unfortunately RF is not an option, so we have to use a wired
network. The maximum distance between sensors is 1 mile. We'd like to be
...Video capture or image sensor suggestions
10:14 31-07-05
I've been doing some extremely basic machine vision experiments for a
while, using STV0680-based USB cameras attached to Linux boxes.
I now want to experiment with IR-illuminated subjects, but the cheap
webcams I've been using are color cameras with IR filters.
Can someone recommend a Linux-...Development of a cheap wireless sensor node
arslan - 07:50 16-04-08
I want to develop a cheap wireless sensor node with short range (500ft).
I am a novice in the field of wireless, therfore i dont want to work on
designing an antenna.
I am looking for small and cheap full/half duplex modules with low
datarate to attach to my digital circuit.
Are any such module...How to transport UART format data to PC?
22:24 01-08-07
Hi All,
I have an image sensor module which has an UART output format. Now, I
want to get it work and transport the image data to PC for testing!
What need I do to get it? The sensor works at least 460KBaud.
I need the fast way to get it work, any suggestion would be great
appreciated!
T...64 ADCs on PXA255 !!
RR - 11:29 28-11-06
I need to interface a minimum of 32 (maximum of 64) 14-bit ADCs to an
Intel PXA255 XScale processor.
Each ADC is connected to an individual linear Hall Effect sensor.
The sensors are distributed over an area of approx 2 sq metres. I want
an ADC near each Sensor (for signal integrity reasons), so...Re: using a LED as a light sensor
Deep Reset - 11:15 16-06-06
"BrunoG" wrote in message
news:4492c725$0$991$ba4acef3@news.orange.fr...
> "Rufus V. Smith" a écrit dans le message de news:
> 44903395$0$28047$88260bb3@news-taz.teranews.com...
> >
> > "BrunoG" wrote in
> > message news:445d31a5$0$19698$8fcfb975@news.wanadoo.fr...
> > > H...[Slightly OT] HTL to TTL conversion
MikeG - 05:31 26-08-07
I've already asked this question on an electronics newsgroup (in case
Jim Thompson wonders why I'm repeating myself!) but thought someone
here may have had experience with this situation.
I have a draw wire displacement sensor which works at HTL logic
levels (I have searched for the values for...Re: PC104 Serial Port Programming
starman - 12:32 09-11-05
Thanks for asking...
Let me first give you some background information on what I am
attempting to do. I am using the PC104 board serial ports to... read
in GPS position coordinates from a GPS on one serial port, read in
measurements from a temperature sensor on another serial port, take
thes...