martes, 2 de julio de 2013

Arduino by Davis: “Re: Low battery alert” plus 19 more

Arduino by Davis: “Re: Low battery alert” plus 19 more

Link to Arduino by Davis

Re: Low battery alert

Posted: 01 Jul 2013 10:21 PM PDT

Could you explain me why? I was thinking to use a NPN transistor to control if current flows from collector (Vcc) to emitter (GND)...

PID controller for servo motor, without servo drive?

Posted: 01 Jul 2013 10:19 PM PDT

I want to use a PID controller to regulate the position of a servo motor, and the "computer" of this machine is a microcontroller. But is it possible not to use a servo drive, as long as I calculate the transfer function, couldn't I just let the microc...

Re: Stuck on program

Posted: 01 Jul 2013 10:18 PM PDT

Quote
Pin designators should be byte constants.

Re: i need please some help about this arduino cam OV7670

Posted: 01 Jul 2013 10:17 PM PDT

You can find tutorials for interfacing OV7670 or similar camera modules from Arduino based camera  http://www.arducam.com/tutorial/
But I recommend to use OV2640 module which can output JPEG image, which is easy to handle the compressed image data by A...

Re: samsung scx 3200 becoming wireless

Posted: 01 Jul 2013 10:16 PM PDT

Re: Low battery alert

Posted: 01 Jul 2013 10:08 PM PDT

Quote
If I connect a transistor in series with these two resistors, and the base to a digitalWrite() pin, would it do the trick?
Maybe a RELAY controlled by the transistor.

Re: Extrapolationg code for multiple analogue inputs isnt working

Posted: 01 Jul 2013 10:08 PM PDT

It's cool that you're using Arduino for this. And, you can probably tweak it (after getting it to work) to make all kinds of different lighting effects based on how/when you hit the drums....which is really cool.
But....coming from a more hardware/dis...

Hand-built, Arduino-Based Animatronic Puppet in Adafruit Support Forums

Posted: 01 Jul 2013 10:00 PM PDT

Iteaduino Nano And Iteaduino Tiny Preview

Posted: 01 Jul 2013 09:28 PM PDT

With emergence of Arduino open source development platform, either hardware or software development has become easier than ever. With use of a variety of Arduino development board and platform plus different kinds of sensors with electronic bricks and ...

Re: Troubleshooting Due - won't connect to PC

Posted: 01 Jul 2013 09:26 PM PDT

Try a different cable.
Try powering down the linux machine.  I have had problems with the hardware on the PC side before where it has be completely powered off (unplug power cable from back of power supply or switch if you have it.)
Try both the Progra...

Re: Extrapolationg code for multiple analogue inputs isnt working

Posted: 01 Jul 2013 09:21 PM PDT

Would you show us a drawing/schematic of how the circuit is wired.

I would start with the areas in Blue as marked with /* and */ to see if your first analog works.
Note I did not use code blocks to show the color.


int LEDstrip1=1;              // led s...

Re: Bitwise code question for led strip POV

Posted: 01 Jul 2013 09:20 PM PDT

It looks to me like for the first 9 values of j, you are correct in that the bit shifting serves no purpose.  However, after that, it would essentially take whatever color value was in the color table and rotate through a variety of colors until it get...

Re: How to get single passes through loop?

Posted: 01 Jul 2013 09:20 PM PDT

Interesting, but may be more fancy than I need - remember that the entire single pass stuff goes away in the finished code. 

This approach may not be the optimal way to go for perfect code, but it appears that it will work well enough to allow my deve...

Super-Long Range Communications

Posted: 01 Jul 2013 09:00 PM PDT

Well, given that my title is arbitrary, let me try to clarify.

I'm from the University of Kansas, and on a team for a balloon-hoisted rocket launch project.

We're nearing the first test launch date for our dynamics simulation launch where we'll be taki...

Re: Mega 2560 digital pin number of the analog pins

Posted: 01 Jul 2013 08:57 PM PDT

are you saying that for example if Im using digital pin 5 and also analog pin 5 I can just say : pinMode(A5,INPUT); pinMode(5,OUTPUT);
this would be great. also one way to find out whats the equivalent digital pin for an analog pin is for example on me...

Re: analogComp, a library to use the internal analog comparator

Posted: 01 Jul 2013 08:53 PM PDT

Hi Leo,

Thank you for making this library. I think it is just what I need to make my program work on my Attiny85.

I'm having a small problem, though. I'm trying to use the bandgap reference for AIN+, and analog pin 3 as AIN- (I need pins 0 & 1 for PWM)...

Re: Incontro comunità italiana 29/30 giugno a Bassano d.G.

Posted: 01 Jul 2013 08:44 PM PDT

@pitusso, mi potresti dire come contattare il tuo amico Pietro ? E' per quel discorso sui tranceiver, che abbiamo lasciato a meta'.
grazie

MIDI clock (BPM) to analogue delay (analogue expression pedal input)

Posted: 01 Jul 2013 08:34 PM PDT

Hi,

I would like to synchronise the delay time on my analogue delay and chorus pedals to an MIDI clock form my synth...

both pedals accept an analogue expression pedal input to set the delay / modulation timing (in ms)

I am new to Arduino and have no e...

FLUIDIC – Sculpture in Motion

Posted: 01 Jul 2013 09:00 PM PDT

Combining a water pond, a physical point cloud formed by 12,000 illuminated spheres, 8 high-speed laser projectors and the interactions of its visitors, Hyundai's design philosophy "Fluidic Sculpture" is brought to life and transformed into a vivid art experience.

Shaped by visitor interaction, randomly distributed molecules begin to swarm – aggregating and accumulating. They are constantly in motion, reacting to the people who seek to engage. Ever-changing dynamic light sculptures are created, conveying the essence of Hyundais design language, the inspirational role played by nature and the ability to continuously adapt and evolve.
Due to a complex computer algorithm the particles of the cloud seem randomly arranged. But the algorithm takes into account the positions and projection angles of 8 high-speed laser projectors suspended around the artwork. This enables the lasers to hit and light up all spheres without any occlusion even deep inside the arrangement.

The lit spheres finally form three-dimensional graphical compositions without any sweet or blind spots. Keeping the same density and intensity the FLUIDIC graphics enable their viewers to observe and interact simultaneously from every point of view. To analyze the positions of the visitors, their posture and gestures the installation incorporates multiple 3D camera tracking systems. FLUIDIC presents a form that is both flexible and solid, a flow with a distinctive profile but dynamic motion.

Re: Can Delay() take in a decimal?

Posted: 01 Jul 2013 08:32 PM PDT

If you want to delay at less than a milliseconds precision, use delayMicroseconds()
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