viernes, 4 de enero de 2013

Arduino by Davis: “TeensyPi Networked Temperature Controller #piday #raspberrypi @Raspberry_Pi” plus 19 more

Arduino by Davis: “TeensyPi Networked Temperature Controller #piday #raspberrypi @Raspberry_Pi” plus 19 more

Link to Arduino by Davis

TeensyPi Networked Temperature Controller #piday #raspberrypi @Raspberry_Pi

Posted: 04 Jan 2013 02:00 AM PST

Cool project shared over at the Adafruit Forums by "jimmayhugh" called TeensyPi:

I've knocked together a Networked Temperature Controller using the Raspberry Pi, a Teensy 3.0 board, Pi Plate, and 1-wire devices that can be used to remotely monitor and control multiple devices. I plan on using this to monitor and control my beer storage coolers, fermentation chambers, and brewstand, but it could also be used for other uses such as brooder temperature control for avian breeders, sous vide, etc. You can see the complete write up at my TeensyPi website. Comments are welcome.

Read more.


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Re: How do I give an I2C device an address?

Posted: 04 Jan 2013 01:58 AM PST

The easiest thing to do is look at the datasheet, this ought to tell you everything you need to know. Some modules have fixed addresses, some have software controlled addresses, some have hardware controlled addresses (where you have a set of pins that...

Re: clock (second and minutes)

Posted: 04 Jan 2013 01:56 AM PST

do a search in the box at the top of this page  for "clock display "  or similar, there have been many projects to give you ideas

ADK2012 audio output

Posted: 04 Jan 2013 01:56 AM PST

I'm trying to extend the USBHost/ADK lib to ADK2012. I'm interested in the audio output. Basically, I want to know the audio latency of such a solution.

So far, I find the correct interface (audioIf=1) & endpoint. I set the correct device configuration...

Re: [documentation] BUS I2C

Posted: 04 Jan 2013 01:53 AM PST

merci pour le partage

Re: ATTiny85 Power

Posted: 04 Jan 2013 01:52 AM PST


Quote
Why not just use a 5V wallwart?

Ah, perhaps I should have mentioned, this circuit is an add-on to an existing model led lighting installation that is running off the 12v wallwart, and the guy I'm making it for wants just one power sourc...

Re: include library query

Posted: 04 Jan 2013 01:18 AM PST

math.h is included in the Arduino.h header file, which is included in every .ino file.

Re: AS1130 Ongoing Discussion 132 Individually controllable, PWM LED driver

Posted: 04 Jan 2013 01:17 AM PST

Here you can see the SDA and the SCL. What's strange is the ACK...because if the last byte is sent then there shouldn't come a ack before the stop bit...

include library query

Posted: 04 Jan 2013 01:17 AM PST

I have just started to learn programming the Arduino and I am going through some simple examples to get a better understanding.  I have just tried an example that uses the sqrt() function, part of the maths group.  I couldn't understand why the example...

Re: not declared in this scope

Posted: 04 Jan 2013 01:13 AM PST

Indeed you have to spell consistently including case to program.  Or use an editor with auto-complete on variable names.
I would be interested in such an editor.  Can...

Re: Idée de projet pour débuter

Posted: 04 Jan 2013 01:11 AM PST

Merci pour ta réponse !

Effectivement j'étais au courant que le Raspberry était beaucoup plus limité en terme d'extension. Mais comme c'est un premier projet je me suis dit que ça valait le coup. Il sera toujours tant d'acheter quelque chose de plus ex...

Morse Code Gmail Notifier #piday #raspberrypi @Raspberry_Pi

Posted: 04 Jan 2013 01:00 AM PST

morsecode

Check out this Raspberry Pi + Morse Code project from m0xpd:

After the fun-and-games with Morse and the Raspberry Pi yesterday, I decided to turn my hand to something a little more subtle – something which couldn't have been done more easily on a PIC!

Following on from the inspiration provided by Michael at MitchTech, who described a Physical Email Notifier using the RPi, latterly picked up by the good folks at Adafruit, I mixed in some Morse …

Read more, including code!

Re: uso particolare 7805 - data logger per auto

Posted: 04 Jan 2013 12:57 AM PST

Anche se nessuno si espone, stamattina sul bus ho avuto un paio di idee ed ho letto qualcosa in giro:


ho messo il diodo prima della resistenza per evitare "giri strani" d...

Re: Problema bitshift uint32_t

Posted: 04 Jan 2013 12:57 AM PST

non crei problemi è dato dal fatto che nonostante lo shift di bit il valore non sfora mai il byte di lunghezza?

Il problema lo hai solo se shifti verso sinistra perc...

MOVED: ph level tester

Posted: 04 Jan 2013 12:55 AM PST

Re: Problema bitshift uint32_t

Posted: 04 Jan 2013 12:52 AM PST

Ok, grazie, lo provo subito.
Supponevo che mi ero perso qualche pezzo.

il punto che

Code:

uint8_t internal_inputs =((PINB & 0x06)>>1) + (((PIND & 0xf0)>>4)<< 2) + (((PINC & 0x0c)>>2)<< 6);


non crei problemi è dato dal fatto che nonostante lo ...

Re: AS1130 Ongoing Discussion 132 Individually controllable, PWM LED driver

Posted: 04 Jan 2013 12:49 AM PST

Okay thanks mate!
I'm trying and trying but it still doesn't work...
I optimized the code that SCL is now 90kHz. And to see if the driver is working I'm sending only the CLKSYNC-byte. So I'm measuring it but the oscilloscope gives me a really strange s...

Re: Call dynamically created function name

Posted: 04 Jan 2013 12:49 AM PST

[code]
int Delay = 1000;

void Func1()
{
   delay(Delay);
}
void Func2()
{
   delay(Delay);
}
void Func3()
{
   delay(Delay);
}

void (* funcs[])() = {Func1, Func2, Func3};

void setup() {

}

void loop() {
    digitalWrite(13, HIGH);
    funcs[random(4)]();
    ...

Re: Idée de projet pour débuter

Posted: 04 Jan 2013 12:49 AM PST

Pour commander une lampe, le Raspberry Pi peut effectivement se substituer à l'arduino. Par contre comme il ne dispose que de très peu d'entrées/sorties ses possibilités d'extensions sont limitées. Ce projet pourrait intéresser [url=http://arduino.cc/b...

Re: Laser rangefinder

Posted: 04 Jan 2013 12:48 AM PST

Quote
I already discovered that UNO isn't capable of doing any image processing (is there any that can?)
It depends what you define as "image processing".
If all you need to do is locate the brightest spot in a low-res 2D image, or a mid-res ...

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