Arduino by Davis: “Re: Garbage reading from Chronodot 2nd time around??” plus 19 more

Re: Garbage reading from Chronodot 2nd time around??
Re: Help with Code - blocking menu
Re: Serial problems at 115200 baud
Re: Problema a programmare con arduino uno.
Re: splitter un signal RS485 sur plusieurs arduinos RX ? passer un tableau en i2C ?
Re: Näherungsschalter soll Arduino aufwecken
MOVED: Sketch crashing (?) and repeating setup()
Re: Sketch crashing (?) and repeating setup()
Re: Atmega programming
Re: ADC not stable when reading DC voltage from divider
Re: Cnc Laser progetto in costruzione
Re: reading sms
Re: Sketch crashing (?) and repeating setup()
Re: TM1640 demo sketch works for ATtiny85 in IDE0022, but not newer versions
Re: Stifteiste oben/unten gleich lang
Open Source Hardware and Maker Spaces Make Sense for Libraries
Re: COMPLAINT: Starter kit components not fitting
Re: I2C Issues
Re: Can a power supply interruption cause EEPROM corruption?
Re: dopo mesi chiedo aiuto i2c UnoR3 non va

Re: Garbage reading from Chronodot 2nd time around??

Posted: 22 Apr 2013 03:53 AM PDT

Do you have adequate decoupling for those LED displays - they need a lot, you may be getting interference
from the display if decoupling is poor and/or the wiring layout isn't nice and tight (run all the wires to the display close together to prevent o...

Re: Help with Code - blocking menu

Posted: 22 Apr 2013 03:52 AM PDT

Quote

Note: I understand that delay is a blocking function, I think that my biggest problem is getting this sequence of notes to play without using a delay....

I don't know how big a problem that will be for you, but that IS what you need to d...

Re: Serial problems at 115200 baud

Posted: 22 Apr 2013 03:52 AM PDT

Oohhhh... Just thought of something. I'm connecting a DCE to DCE serial port... neither are DTE and is probably why I'm not getting a connection to the remote device. The 115200bps is probably working when connecting to the PC, as it is a DTE device (c...

Re: Problema a programmare con arduino uno.

Posted: 22 Apr 2013 03:51 AM PDT

Dovrei creare una sequenza di tre motori e dovrei attivare questa sequenza premendo un pulsante e interronpere questa sequenza in qualsiasi momento premendo un'altro pulsante, pero se non premo questo pulsante per terminare il ciclo il ciclo deve finir...

Re: splitter un signal RS485 sur plusieurs arduinos RX ? passer un tableau en i2C ?

Posted: 22 Apr 2013 03:50 AM PDT

Quote

splitter le signal au sortir du MAX485 ? si oui combien d'arduino peut on mettre en sortie d un même signal ? y a t il des protections à faire, une amplification éventuelle ?

Si tu dois dupliquer le signal du MAX485, autant dupliquer l'e...

Re: Näherungsschalter soll Arduino aufwecken

Posted: 22 Apr 2013 03:44 AM PDT

Jop,

sonst hacke eine Ikea Schrank Innenbeleuchtung, läuft auf 4,5V, den Ruhestrom habe ich noch nicht gemessen...

Grtz, Linpo

MOVED: Sketch crashing (?) and repeating setup()

Posted: 22 Apr 2013 03:43 AM PDT

This topic has been moved to Project Guidance.
No code.
http://arduino.cc/forum/index.php?topic=162102.0

Re: Sketch crashing (?) and repeating setup()

Posted: 22 Apr 2013 03:43 AM PDT

You could be running out of RAM, but without code, we're all just guessing.

Re: Atmega programming

Posted: 22 Apr 2013 03:41 AM PDT

I believe if it's open source, then you can use it commercially. You just can't sell the software that is programming the chips.

Re: ADC not stable when reading DC voltage from divider

Posted: 22 Apr 2013 03:38 AM PDT

How unstable is the reading?

Re: Cnc Laser progetto in costruzione

Posted: 22 Apr 2013 03:02 AM PDT

Non si tratta di 'messa a fuoco' , la collimazione è una cosa diversa.
Si tratta di concentrare il maggior numero di particelle nel punto più piccolo possibile.
Ovviamente la manovra di collimazione va fatta 'sul pezzo' in quanto variando la distanza t...

Re: reading sms

Posted: 22 Apr 2013 03:01 AM PDT

Ok,

According to this image of freeduino: http://www.freeduino.org/images/freeduino_serial2.jpg
The Rx is pin 0(the first pin from right on digital side) and Tx is pin 1(second pin from right) on the digital side.

The GSM module will require another po...

Re: Sketch crashing (?) and repeating setup()

Posted: 22 Apr 2013 03:01 AM PDT

Quote

In a nutshell with a simplistic view of the code...

I see nothing in that (clearly not your real) code that would cause the issues you are having, nor do I see any proof that the Arduino is resetting.

I'll bet that you can figure out wha...

Re: TM1640 demo sketch works for ATtiny85 in IDE0022, but not newer versions

Posted: 22 Apr 2013 03:00 AM PDT

I means that somewhere in the program a pure virtual function is declared then an object is created without supplying a definition for that function.

If you can find a function in the library that looks like this:

virtual void someFunction(...)=0;

Chan...

Re: Stifteiste oben/unten gleich lang

Posted: 22 Apr 2013 02:58 AM PDT

hi,

wenn Du sie nicht bekommst:

entweder so eine wie die von watterott (gibts auch bei reichelt), und einfach mit dem seitenschneider die mitte rauszwicken (aus einer mach zwei).

oder eine gewinkelte kaufen und die geradebiegen.

gruß stefan

Open Source Hardware and Maker Spaces Make Sense for Libraries

Posted: 22 Apr 2013 03:00 AM PDT

Adafruit 1419

Open Source Hardware and Maker Spaces Make Sense for Libraries.

Griffey showed many examples where Arduino-based hardware cost a third or even a tenth of retail goods. Assuredly some had added features and may have been more aesthetically pleasing, but even this customization is likely not far in the future, and as the software is open source, it can be modified to meet individual needs.

For libraries this serves two purposes.

First, it joins an arsenal consisting of 3D printers, knitting clubs, soldering torches, library farms, recording studios and other maker spaces. Some have asked whether these devices are just expensive toys with little in the way of utilitarian value. By incorporating devices that serve obvious real world concerns, it becomes easier (and more cost effective) to incorporate a maker space into a wide variety of libraries.

Second, as library budgets continue to be reduced in many communities, these devices offer an opportunity for cost-saving measures that unlike some open source software solutions will not see all of their savings lost through highly technical hours of labor.

Open source hardware is fairly new (Arduino and Raspberry Pi first came onto the scene in 2005 and 2006, respectively) and it is possible to overestimate their future impact. However, I believe that they have the possibility to inspire a new form of technical interaction for our culture, built not on consumption, but on participatory creation. Where better to start than your local library?

Re: COMPLAINT: Starter kit components not fitting

Posted: 22 Apr 2013 02:35 AM PDT

So I'm up to project 10 now, but the story is still the same - dealing with incorrect circuits because of bad fitting components actually takes up more time than the exercise or the sketch. Exercise 10 ended up taking a frustrating 3 hrs because I had...

Re: I2C Issues

Posted: 22 Apr 2013 02:33 AM PDT

**UPDATE***

I removed a Lilypad that was connected as another slave but was powered through the 5V pin of my Arduino Uno which i was using as the slave device and now the Uno works perfectly! No other changes!

Any idea why this happened? Because I do n...