Arduino by Davis: “Re: DIGA” plus 19 more

---

• Re: DIGA
• Controlling relays with keypad while displaying LCD info
• Re: N-MOSFET, PWM and DPDT to control speed and direction of Motor
• Re: Programming Arduino Pro Mini
• Re: Semplice rete neurale per Arduino 2
• The audacious plan to end hunger with 3-D printed food #3dthursday
• Re: Autonomous Arduino Car
• Re: 2 Pumpen zu gewissen Zeiten ansteuern
• Re: Arduino Team to Launch Branded Arduino Robot
• Re: NE555
• Re: Nuovo incontro della sezione italiana del forum
• Optokoppler und Reaktionsgeschwindigkeit
• Re: Algún hardware que detecte movimiento (Tipo raton)
• Re: what does this error mean (avrdude: stk500_getsync(): not in sync: resp=0x00)
• Re: NE555
• Re: String/sprintf alternative specifically for Arduino.
• Dr. Mishra Wins Competitve NSF Grant to Support Funding to Help 3D Printers ‘Learn’ #3dthursday
• Re: Reference section for "ShiftOut"
• Re: What's the mean of "f" in this Code
• Re: Arduino uno r3 e relay 8 channel 5v

Re: DIGA Posted: 23 May 2013 03:16 AM PDT mmmmm.... vedo, ma non ci ho capito una mazza. Un pin di ingresso di arduino ha una elevata sensibilità e una alta impedenza e quindi non è necessario un transistor. Un pin di arduino in uscita è in grado di fare accendere un led senza la necessità di...

Controlling relays with keypad while displaying LCD info Posted: 23 May 2013 03:15 AM PDT Hello everyone! I'm a new guy around here (although I must admit I've been lurking for a while) and new to Arduino as well. I recently took a filler course at my university on the basics of the Processing program and language which has sparked my inter...

Re: N-MOSFET, PWM and DPDT to control speed and direction of Motor Posted: 23 May 2013 03:13 AM PDT Coding Badly- I'll probably use pin 10 on the mega2560. also thanks MarkT and afremont for the tips about the switching tranny and snubber. At the mo, I'm only using a couple of amps @12vdc, but I want have these scalable so in future I can use larger...

Re: Programming Arduino Pro Mini Posted: 23 May 2013 03:12 AM PDT Quote from: fungus on Today at 02:48:42 am a) A decoupling problem - try adding an extra capacitor on the FTDI board. Where should I put it? between which 2 legs/contacts? [quote author=fungus link=topic=13771...

Re: Semplice rete neurale per Arduino 2 Posted: 23 May 2013 03:09 AM PDT @zoomx: Credo che il problema sia con la funzione exp(). Prova a vedere nella tua libreria matematica.

The audacious plan to end hunger with 3-D printed food #3dthursday Posted: 23 May 2013 03:00 AM PDT The audacious plan to end hunger with 3-D printed food, from Quartz: Anjan Contractor's 3D food printer might evoke visions of the "replicator" popularized in Star Trek, from which Captain Picard was constantly interrupting himself to order tea. And indeed Contractor's company, Systems & Materials Research Corporation, just got a six month, $125,000 grant from NASA to create a prototype of his universal food synthesizer. But Contractor, a mechanical engineer with a background in 3D printing, envisions a much more mundane—and ultimately more important—use for the technology. He sees a day when every kitchen has a 3D printer, and the earth's 12 billion people feed themselves customized, nutritionally-appropriate meals synthesized one layer at a time, from cartridges of powder and oils they buy at the corner grocery store. Contractor's vision would mean the end of food waste, because the powder his system will use is shelf-stable for up to 30 years, so that each cartridge, whether it contains sugars, complex carbohydrates, protein or some other basic building block, would be fully exhausted before being returned to the store. Ubiquitous food synthesizers would also create new ways of producing the basic calories on which we all rely. Since a powder is a powder, the inputs could be anything that contain the right organic molecules. We already know that eating meat is environmentally unsustainable, so why not get all our protein from insects? If eating something spat out by the same kind of 3D printers that are currently being used to make everything from jet engine parts to fine art doesn't sound too appetizing, that's only because you can currently afford the good stuff, says Contractor. That might not be the case once the world's population reaches its peak size, probably sometime near the end of this century. "I think, and many economists think, that current food systems can't supply 12 billion people sufficiently," says Contractor. "So we eventually have to change our perception of what we see as food." If Contractor's utopian-dystopian vision of the future of food ever comes to pass, it will be an argument for why space research isn't a complete waste of money. His initial grant from NASA, under its Small Business Innovation Research program, is for a system that can print food for astronauts on very long space missions. For example, all the way to Mars. "Long distance space travel requires 15-plus years of shelf life," says Contractor. "The way we are working on it is, all the carbs, proteins and macro and micro nutrients are in powder form. We take moisture out, and in that form it will last maybe 30 years." Pizza is an obvious candidate for 3D printing because it can be printed in distinct layers, so it only requires the print head to extrude one substance at a time. Contractor's "pizza printer" is still at the conceptual stage, and he will begin building it within two weeks. It works by first "printing" a layer of dough, which is baked at the same time it's printed, by a heated plate at the bottom of the printer. Then it lays down a tomato base, "which is also stored in a powdered form, and then mixed with water and oil," says Contractor. Finally, the pizza is topped with the delicious-sounding "protein layer," which could come from any source, including animals, milk or plants. The prototype for Contractor's pizza printer (captured in a video, above) which helped him earn a grant from NASA, was a simple chocolate printer. It's not much to look at, nor is it the first of its kind, but at least it's a proof of concept. Read more.

Re: Autonomous Arduino Car Posted: 23 May 2013 02:41 AM PDT Also interested in progress as I have started on a similar project using "The Source" or a Radio Shack cheap car--any chance of seeing full code so far??

Re: 2 Pumpen zu gewissen Zeiten ansteuern Posted: 23 May 2013 02:39 AM PDT HI Marko, ich habe mir für mein BEcken ebenfalls eine 4-fach Dosierpumpe gebaut. Ursprünglich habe ich das mit einem ULN2003 geregelt, habe den jetzt aber durch ein 4fach Relais ausgetauscht - bin damit zufriedener. Ich habe mir damals einfach eine Br...

Re: Arduino Team to Launch Branded Arduino Robot Posted: 23 May 2013 02:37 AM PDT Looking forward to a release date

Re: NE555 Posted: 23 May 2013 02:36 AM PDT I do like in picture but still then IR diode and tsop standing against each other led diode don't shine, but then I move IR diode or put barrer and pull out led diode blinks. So what I do wrong?

Re: Nuovo incontro della sezione italiana del forum Posted: 23 May 2013 02:35 AM PDT Il mio commento era superfluo fino a Firenze e poco oltre posso venire in auto, oltre mi sento un poco in difficoltà  Certo è che il centro dell'incontro andrà fatto per raccogliere quante più persone possibile e facendo in modo ch...

Optokoppler und Reaktionsgeschwindigkeit Posted: 23 May 2013 02:17 AM PDT Hallo, ich überlege, die 12v SPannungsversorgung für meine Strömungspumpen (u.a. nutze ich dafür dieses shield: http://schmelle2.de/wp/arduino/shields/jumping-ball) komplett von der Arduino Spannungsversorgung zu isolieren. Das ist ja generell über ein...

Re: Algún hardware que detecte movimiento (Tipo raton) Posted: 23 May 2013 02:16 AM PDT Hola, Si tienes razón @Heke que no lo he explicado del todo bien. Son diferentes tamaños de barras que viajan por una cinta transportadora. La tabla normalmente tiene siempre el mismo color. No es de pegar nada, sino que pasa por inductor para secar. H...

Re: what does this error mean (avrdude: stk500_getsync(): not in sync: resp=0x00) Posted: 23 May 2013 02:16 AM PDT Pls help me regarding this error , i am frequently getting this error 'Re: what does this error mean (avrdude: stk500_getsync(): not in sync: resp=0x00)'while uploading the program in arduino fio using programmer

Re: NE555 Posted: 23 May 2013 02:16 AM PDT You're only really interested in the presence (or not) of infrared light, not sending any data.  A 36KHz carrier is used for 2 things - 1. transmitting data, and 2. increasing the range by increasing the sensitivity of the receiver and filtering for th...

Re: String/sprintf alternative specifically for Arduino. Posted: 23 May 2013 02:15 AM PDT I've been experimenting some different ways to do things. Here are a few common functions implemented using the Print library. [code]   inline int sprintf( char * str, const char * format, ... )       {          va_list v_List;          va_start( v_List, format );          G...

Dr. Mishra Wins Competitve NSF Grant to Support Funding to Help 3D Printers ‘Learn’ #3dthursday Posted: 23 May 2013 02:00 AM PDT Dr. Mishra Wins Competitve NSF Grant to Support Funding to Help 3D Printers 'Learn', via Metal Powder Report. Dr. Sandipan Mishra, a professor at Rensselaer Polytechnic Institute, has won a five-year US$400,000 grant from the National Science Foundation (NSF) to improve the additive manufacturing (AM) process. Dr Mishra, who works in the Department of Mechanical, Aerospace, and Nuclear Engineering, plans to use the money to investigate and develop new sensing and controls paradigms to help develop additive manufacturing, according to a press release. The project, titled "Multi-objective learning control strategies for additive manufacturing," will develop advanced sensing and controls algorithms for improving the precision and reliability of additive manufacturing technologies, including 3D printing. Despite its tremendous potential, additive manufacturing is hampered by poor process reliability and throughput, and systems currently are not precise or robust enough to be scaled up and used for commercial, mass-manufactured products, it is suggested. Dr Mishra's goal is to overcome this challenge by creating smarter control systems that will use sensor measurements to help 3D printers learn and adapt as they are operating. Many additive manufacturing technologies work by applying or printing thin layers of materials on top of one another, constructing the object from the ground up, one layer at a time. Dr Mishra will create and design a feedback system that will enable an additive manufacturing system to make small, iterative refinements in the midst of a printing job. The system will be able to continually assess the progress of a print job, and then automatically make necessary adjustments to ensure the finished good will have specific pre-determined properties or geometries. These process improvements could boost the overall reliability of 3D printing, and open the door to creating larger and faster additive manufacturing technologies suitable for industrial-scale production. The grant, part of a Faculty Early Career Development Award (CAREER) is given to faculty members at the beginning of their academic careers and is one of NSF's most competitive awards. "We congratulate Dr Mishra for receiving an NSF CAREER Award to support his promising and timely research into control systems for additive manufacturing," said David Rosowsky, dean of the School of Engineering at Rensselaer. "The CAREER Award is among the highest honours a new faculty member can receive, and recognizes their potential for significant scholarly impact early in their academic career." Read more. Every Thursday is #3dthursday here at Adafruit! The DIY 3D printing community has passion and dedication for making solid objects from digital models. Recently, we have noticed electronics projects integrated with 3D printed enclosures, brackets, and sculptures, so each Thursday we celebrate and highlight these bold pioneers! Have you considered building a 3D project around an Arduino or other microcontroller? How about printing a bracket to mount your Raspberry Pi to the back of your HD monitor? And don't forget the countless LED projects that are possible when you are modeling your projects in 3D! The Adafruit Learning System has dozens of great tools to get you well on your way to creating incredible works of engineering, interactive art, and design with your 3D printer! If you've made a cool project that combines 3D printing and electronics, be sure to let us know, and we'll feature it here!

Re: Reference section for "ShiftOut" Posted: 23 May 2013 01:41 AM PDT Yeah, mistakes like these are questioned often here. It seems that a few reference items have been written in a rush. Unfortunately general public/members do not have access to fix the mistakes.

Re: What's the mean of "f" in this Code Posted: 23 May 2013 01:37 AM PDT No worries, remember stack overflow, it has a lot of great non-Arduino answers ( arduino stuff too ).

Re: Arduino uno r3 e relay 8 channel 5v Posted: 23 May 2013 01:37 AM PDT Aggiornato schema al post #1 @Brunello che cosa suggerisci?

You are subscribed to email updates from Arduino by Davis To stop receiving these emails, you may unsubscribe now.	Email delivery powered by Google
Google Inc., 20 West Kinzie, Chicago IL USA 60610