domingo, 27 de enero de 2013

Arduino by Davis: “my analog signal very noisy !!” plus 19 more

Arduino by Davis: “my analog signal very noisy !!” plus 19 more

Link to Arduino by Davis

my analog signal very noisy !!

Posted: 27 Jan 2013 01:55 AM PST

hi ...my analog signal (from sensor) is very sensitive to the noise..i dont want to sample the noise signal ...how to deal with that by
arduino analog inputs? pls help

Re: Carte Arduino maison, aide routes avec Eagle ?

Posted: 27 Jan 2013 01:54 AM PST


800x600! il faut passer à l'aire du numérique et changer d'écran mon ami!

Je ne suis pas certain que ta remarque soit de bon ton .... mon ami....  smiley-lol

Donc cf la char...

Re: toneAC v1.1 - Twice the volume, higher quality, higher frequency, etc.

Posted: 27 Jan 2013 01:47 AM PST

I'm waiting for toneAC version 1.2.

Re: NewPing Library: HC-SR04, SRF05, SRF06, DYP-ME007, Parallax PING))) - v1.5

Posted: 27 Jan 2013 01:46 AM PST

Teckel, I've received a Due and downloaded NewPing (you asked earlier in the thread).  The immediate issues are that it includes "avr/io.h" and "avr/interrupt.h", neither of which seem to have obvious counterparts for the ARM due.

With those headers mi...

Re: Troubleshooting sketchy uploads to breadboard

Posted: 27 Jan 2013 01:45 AM PST

I'm using an external oscillator. The problem seems to be that the reset wont pull down, not that it wont stay up. During upload I have the reset pin connected to the reset pin on the arduino so it should act exactly as it does on the board as far as I...

Re: Types of Opto-isolators

Posted: 27 Jan 2013 12:58 AM PST

A triac based opt isolator can only be used to switch AC. If you try to switch DC with it, you will find that you can switch it on but not off.

A zero crossing triac based opto isolator can also only be used to switch AC, and can't be used to switch in...

Re: [NTP-Server] aktuelles Datum?

Posted: 27 Jan 2013 12:58 AM PST

Im Zweifelsfall reicht die offizielle Arduino Time Library:
http://playground.arduino.cc/Code/Time

Danke für den Tipp, habe ich auch noch nicht mitbekommen.
Ich hole ...

Re: RGB SMT LED Cube, resistors, drivers, and shift registers.

Posted: 27 Jan 2013 12:49 AM PST

I love to see these things in action, Can you maybe think about making a video for us so we can see  smiley-grin

Re: Running Arduino Micro 24/7

Posted: 27 Jan 2013 12:46 AM PST

Could you please tell me if its recommended/safe to run an Arduino micro 24/7 in a home environment?
So far I have 1 setup but would like to use 5 of them to control roller...

My new Due is dead.

Posted: 27 Jan 2013 12:45 AM PST

While I was trying out the example project "AnalogInOutSerial", the pot was fully turned to the 3V3 end of its range, and the wiper wire came out of A0 socket pin and brushed against the Native USB shield (around the USB connector). I thought nothing o...

Re: Finding a Sensor for Measuring Weight/Mass

Posted: 27 Jan 2013 12:09 AM PST

Quote
and the $10 scales I found provide 0.1g or 0.05g precision.

You didn't look very hard.   Go to eBay and type "digital scales 0.01"  or  "digital scales 0.001"  in the search box.

Re: Never buy there http://www.alpha-crucis.com

Posted: 27 Jan 2013 12:08 AM PST

Yes we are not alone in this case.
I send a mail to adafruit asking them why alphacrucis is an official seller.  I said to adafruit that report fault on them about timeout delivry.
Maybe if all people in our case do the same this (mail adafruit), somet...

frequency counter for Atmega2560

Posted: 27 Jan 2013 12:07 AM PST

Hi , Nick Gammon

first thanks for your tutorial on this link http://www.gammon.com.au/forum/?id=11504 it is very useful, tutorial
I want to use the code on "Frequency Counter sketch for Atmega2560" on...

Re: Question about GSM libraries

Posted: 27 Jan 2013 12:05 AM PST

is this right or it's lacking of libraries?
there still an error smiley-confuse

Re: Finding a Sensor for Measuring Weight/Mass

Posted: 27 Jan 2013 12:04 AM PST

Quote
Measuring weight isn't that difficult: a strain gauge for example.

Measuring mass is very challenging, electronically.

That's very true,  particularly if you want your device to work on other planets !  Any device which relies on the mea...

Re: Possible Leonardo damaged on first sketch ?

Posted: 26 Jan 2013 11:57 PM PST

I did all of these. Reboot PC , unplug Arduino board, disconnect all wires from board, then re-plug USB connection and PC shows for a second an Arduino Leonardo on COM9 but immediately disappear (instead of automatically pass on COM8 port like before) ...

emax es08a servo has only 160 degrees of movement

Posted: 26 Jan 2013 11:51 PM PST

I'm trying to use two servos with my Arduino Uno. The servos were include in a kit I bought at Radio Shack. The greastest the servo can open is 162 degrees but the servo vibrates,  so I constrained the servo to a maximum of 160.  I have looked online a...

Carte Arduino maison, aide routes avec Eagle ?

Posted: 26 Jan 2013 11:50 PM PST

Bonjour,

Je vais réaliser une carte arduino maison, qui va me permettre  en plus des classique I/O de controler directement 3 relais (5v/220v) et deux moteurs électrique avec un chip L293D.

Je souhaiterais qu'un pro y jette un coup d'oeil pour me prév...

Re: arduino GPS incorrect location

Posted: 26 Jan 2013 11:49 PM PST

im getting a similar output like the one in the GPS playground..
ex : $GPRMC,074516.000,A,1300.8067,N,07733.0003,E,0.00,349.99,2701$GPGGA,074517.000,1300.8067,N,07733.0003,E,1,6,2.26,910.4,M,-88.1,M,,*74

so if i filter out this part 1300.8067,N,07733.0...

Re: Time an analog comparison?

Posted: 26 Jan 2013 11:49 PM PST

Of the flyback, the up and down parts of the signal.

Cheers for the links, will start reading ASAP smiley-razz
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