View allAll Photos Tagged breadboard
I read about the challenge just after breakfast. This was the only evidence left.
ODC - Theme (20-09-2012): Breakfast
4x4 Keypad connected via resistor ladder to single analogue input on Arduino. Currently at breadboard stage. It will be used to control the camera shutter and off camera flash for water drop photos. Circuit using 1 analog input
A breadboard prototype of a little circuit that will light a lamp to show who hit the button first in a quiz game. It's basically one thyristor (SCR) and one transistor per contestant. The arrangement of the inter-wiring of the button/lamp boxes determines the team(s). With the random thyristors that I found in the junkbox, there's a problem with holding current, which means that the circuit is only fully reliable with incandescent lamps, not LEDs. I'm planning to use 12V 5W car bulbs for the final version.
Some interesting quirks with this little guy... For one thing, my digital camera shows the 'invisible' IR LED as visible violet light (as shown). Second, I noticed that when the sunlight hit this it tripped; apparently there's enough infrared in sunlight to set it off. Likewise with my camera's flash, that definitely sets it off.
Fortunately this will exist in a dark enclosure, otherwise I'd need to account for 'stray' infrared light sources.
This is a test circuit I cobbled up today to try out an Optrex DMF5005N graphic LCD display.
Here you can see how what is a nice neat ribbon cable / IDC arrangement on the display side becomes a horrible Cthulhu-beard of wires at the breadboard side. Each ribbon cable conductor is a stranded wire, i.e., a collection of hair-fine wires that would be hopeless to stick in a breadboard socket, so I tinned all of them with a drop of solder to stiffen them up. The result? The technique worked, but I can't really recommend it. In fact, I anti-recommend it. It's a lot of fiddly work to tin the wire ends, and it would be very easy to break them off in the breadboard. When I get past the driver prototyping and get around to using the display in a real project, I'll figure out a nicer way to interface it.
As you can see from the rat's nest on the breadboard, wiring a display like this takes a lot of signal paths - it used all but two of the I/O pins on the ATTiny861 MCU, so that chip is not a great choice for this LCD if you mean to do any chattering with any other peripherals. The data lines could be shared, but I don't like the kind of juggling you have to do for that if you can instead just use a chip with more I/O lines - and as it happens, I have several of them. I chose the Tiny861 for this test because it's a very easy chip to debug in-circuit using the Development Environment of Kings. That came in handy for this projecteen because my code did have a bug in it which the in-circuit debugger helped me track down. Yay!
My goal for today was to get this display to show a checkerboard pattern of 8x8 pixel squares. I pulled it off! Fancier stuff can come later - a large fraction of the effort for projects like this is to get the circuit to do anything at all, and once that's going, the rest is relatively easy.
Circa 3:50PM. After our light harp demonstration today for a class on tangible user interfaces I realized that there was a bunch of strange stuff in my backpack.
Breadboard & Otaru white wines, Watanabe Wine & Food, Sakae, Nagoya, July 2014: The white wines were extremely fruity, like popping a fresh grape out of its skin into one's mouth.
I just finished my Breadboard Arduino, I programmed the chip with the blink example using a reugular Arduino.
My first soldering job turned out all right. Now to build some fun circuits! Oh and Adafruit, designing the T-Cobbler with the cable header facing this way: Worst. Decision. Ever. I would definitely prefer my flat cable to be flat.
A prototyping shield for the Arduino.
It brings all the pins up and has a breadboard, a couple of LEDs with current limiting resistors, and a switch all built in. Right now there's a red, green, and blue LED attached to pins 9, 10, and 11.
Edwaert Collier 1640-1708 Breda London
Steckbrett Breadboard Trompe l'Oeil 1704
Schwerin.Staatliches Museum
LA PEINTURE AUX PAYS BAS
1° Il faut distinguer les Pays Bas du Sud et les Pays Bas du Nord, et d'autre part l'époque selon que la religion pratiquée est catholique ou protestante.
Les Pays Bas du Sud correspondent à la Belgique actuelle et au nord de la France. Ils ont fait partie de l'empire romain, et ils sont catholiques. Ethniquement et linguistiquement ils sont soit d'origine Celte et parlent français, soit d'origine Germanique et parlent flamand. Les Pays Bas du Sud, Flandre et Wallonie, sont une des régions d'Europe qui se développe, économiquement, politiquement, techniquement, le plus rapidement vers l'an 1000. A peu près à égalité avec l'Italie du Nord. C'est donc un des lieux privilégiés de la renaissance de l'Europe après la période sombre qui a débuté lors de l'effondrement de l'Empire romain.
Les Pays Bas du Nord correspondent au Pays Bas actuels (Nederland). Ils n'ont pas fait partie de l'empire romain. Ethniquement et linguistiquement ils sont germaniques. Ils sont catholiques jusqu'à la Réforme protestante. Economiquement leur développement est plus tardif que celui des Pays Bas du Sud. Ils se constituent en état indépendant du Sud avec la Réforme. Séparation de fait : 1579 (Union d'Utrecht). Reconnaissance définitive de cette indépendance par tous les pays européens: 1648.
2° Les Pays Bas du Sud sont, au 15è siècle et au début du 16è siècle, le lieu d'activité des Peintres dits "Primitifs Flamands". Peintres Gothiques, ayant leurs ateliers principalement à Bruges, Gent, Tournai, Bruxelles, Anvers. Les sujets de leur tableaux sont exclusivement catholiques. Sous l'influence de l'Italie commencent à apparaître en fin de période les thèmes de la mythologie et de l'histoire de l' Antiquité Gréco-Romaine. Ils vont de Jan Van Eyck à Pieter Bruegel l'Ancien, jusqu'à la séparation de fait du Sud et du Nord. C'est une acception large, certes, mais pratique.
Après la séparation de fait (1579) ces thèmes de peinture, religion catholique, mythologie, histoire antique, restent très dominants, même si le paysage, la peinture de moeurs et la nature morte ont aussi une place, plus importante que dans les pays du sud de l'Europe ou en Allemagne et en Autriche.
Les Pays Bas du Nord. Ils sont plus tardivement développés économiquement et politiquement. Leur peinture gothique, catholique, a en outre été presque entièrement détruite par les protestants.
La Réforme va avoir une conséquence considérable sur la peinture de ces régions et ensuite de l'Europe : la religion et la mythologie ou l'histoire gréco-romaine ne sont plus les thèmes habituels de la peinture. Ces thèmes disparaissent même presque totalement.
Rembrandt et certains de ses élèves sont une exception à cette tendance.
Les Pays Bas du Nord mettent en place, à la toute fin du 16è et au début du 17è siècle, un nouvel art de la peinture dont les thèmes sont tout à fait principalement:
Le paysage, et notamment les marines
La nature morte
La peinture des moeurs de la société bourgeoise et paysanne, et le portrait des classes bourgeoises.
Ces thèmes se répandront dans le reste de l'Europe mais seulement au cours du 19è siècle. Les peintres pré-impressionnistes français notamment s'inspireront beaucoup des peintres néerlandais du 17è siècle.
PAINTING IN THE NETHERLANDS (LOW COUNTRIES)
1. We must distinguish the Southern Netherlands (Southern Low Countries) and the Netherlands from the North (Northern Low Countries), and also according to the time that the religion practiced is Catholic or Protestant.
The Netherlands South (Southern Low Countries) correspond to the present Belgium and the north of France. They have been part of the Roman Empire and they are Catholics. Ethnically and linguistically they are either of Celtic origin and speak French or of Germanic origin and speak Flemish. South Netherlands (Southern Low Countries) , Flanders and Wallonia, are one of the regions of Europe that develops, economically, politically, technically, quickly, from the year 1000. Almost on par with the Italy of North . It is therefore a privileged places of the rebirth of Europe after the dark period that began with the collapse of the Roman Empire.
The Northern Low Countries correspond the current Netherlands (Nederland). They have not been part of the Roman empire. Ethnically and linguistically they are Germanic. They are Catholics until the Protestant Reformation. Economically development is later than tha of the Southern Low Countries. They become an independent state of South part with the Reformation. Separation of fact: 1579 (Union of Utrecht). Definitive recognition of independence by all European countries: 1648.
2. The Southern Low Countries (Netherlands South) are, in the 15th century and early 16th century, the place of business of the Painters, called "Flemish Primitives". Gothic painters, with their workshops mainly in Bruges, Ghent, Tournai, Brussels, Antwerp. The subjects of their paintings are exclusively Catholic. Under the influence of Italy begin to appear at end of period, the themes of mythology and the history of the Greco-Roman Antiquity. They go from Jan van Eyck at Pieter Bruegel the Elder, to the de facto separation of the North and South. This is a broad sense, certainly, but practical.
After the separation of fact (1579) these themes of painting, Catholic religion, mythology, ancient history, remain very dominant, even though the landscape, painting of manners and the nature morte also have a place, more important than in the countries of southern Europe or in Germany and Austria
The Northern Low Countries (Netherlands North). They are later developed economically and politically. Their Gothic painting, Catholic, was also almost completely destroyed by the Protestants.
The Reform will have a significant impact on the painting in these areas and then to Europe: Religion and Mythology or Greco-Roman history are no longer the usual themes of painting. These themes same disappear almost completely.
Rembrandt and some of his students are an exception to this trend.
The Northern Low Countries (Netherlands North) put in place, at the end of the 16th and early 17th Paysage avec un chalet et un grand arbre.century, a new art of painting whose themes are quite mainly:
The landscape, and in particular the marine
The Still life
The painting of the mores of the bourgeois and peasant society, and the portrait of the middle classes.
These themes will become more widespread in the rest of Europe, but only during the 19th century. The French pre-Impressionist painters in particular be inspired many of the Dutch painters of the 17th century.
Edwaert'in henüz 20 yaşında olduğu bir Vanitas resmi. Gerçi Collier Edwaert Vanitas natürmortları yapmıştı. Hiçlik, boşluk ve kibir vurgusu yapılan Vanitas resimlerinde dünyevi ve ölüm yaşı bir arada, yaşam ve ölüm diyalekti olarak kullanılır.
Yaşamın geçiciliği ile ölümün mutlak gerçekliği birtakım semboller ile ifade edilir. Yanan mum, cep saati ve kum saati (zamanın geçişini ve yaşamın kısalığını ifade ediyor); kopuk bir teli olan keman (müziğin geçici keyfini); para çantası (dünyevi zenginlikleri)
bilimsel kitaplar ve küreler (öğrenmenin kibrini) ve askeri bayrak (dünyevi gücü ifade ediyor). Collier Edwaert; zenginlik, bilgi ve güç bütünüyle dünyevi, geçici ve nihayetinde anlamsızdır diyor. 20 yaşındaki bir sanatçı için muazzam bir eser.
@UmbertoArte
Nascent was initially setup on a spare table in the garage. The control electronics had not yet been finalized, so they existed in primarily breadboard form. It was controlled by an ancient laptop running the excellent TurboCNC program.
Analysing the timing of the simulated 6502 bus cycles with the HP LogicDART. This is roughly the moment when I realised that I would need in-line assembler code to make it go fast enough. The display shows the 1MHz Phase2 signal (lower trace) and the Arduino-generated CS (chip select) signal (upper trace). Doing this in C, via the Arduino IDE, is too slow, taking 220ns to respond to the change in state of the 1MHz signal. Previously, I timed the Arduino 'writeDigital' function at 3.3us just to write CS low and the high again -- this version uses direct port I/O in C and is still too slow.
Prototype MobZombies wearable sensor. It consists of a gyroscope to measure rotation of the body, and an accelerometer used as a step sensor to detect forward motion. The communication between the sensor and the device that runs the game (originally a Table style PC, now a mobile phone running the application as a J2ME applet) is done using a bluetooth radio. Now we'll turn it into a much smaller printed circuit board.
An under construction view of the parallel port driven servo control circuit for the robot that TJ and I are building.
This is the post-breadboard step, everything soldered up.
Used directions / got idea from here: learn.adafruit.com/animating-multiple-led-backpacks/wiring
after a few weekends of work the beta22 headphone amp finally lives.
rear module is the dual-tracking +/- 30vdc supply.
2 side modules are the left and right amp channels.
this is a pure class-a discrete dc-coupled amp design.
and yes, ALL that is JUST for a headphone amp (lol) although it can actually drive speakers directly.
that wooden board is exactly 12" square.
My sound flash trigger nearly ready for use. Needs a few test runs to make sure I've got the sensitivity right then it'll be time to solder to a stripboard and stick it in to a project box.
Currently clapping hands at around 1 meter fires the flash as does clicking fingers at 50cm.
The cactus trigger is only attached to act as a PC port for the YN460. Need buy a PC port to hotshoe block from eBay then cut up a PC cord for soldering.
Watch this space for balloon pops and shooting at wine glasses with the BB gun!
(circuit layout taken from these guys: hiviz.com/tools/triggers/triggers2.htm#piezo)
Thanks to Miria Grunick, who dropped off a surface mount 3v regulator, I was able to remove the additional components to handle the level shift between what was a 5 volt microcontroller and a 3 volt IMU. (This work is licensed under a Creative Commons Attribution 4.0 International License. Please provide attribution and a link back to this web page in a manner that associates the image with the image credit.)
Playing around with the Arduino Duemillanove. Just started, but loving the little success moments when things start to blink :)
This setup was controlled by a program, that turns the LEDs on and off according to the state of the bits in a 3 bit counter, which is incremented every second.
W2GUM is now W2GUM/SK That means a "silent key".
Anthony Colaguori was a super nice guy who I would always see at the ham radio meeting called Atlanticon in Timonium, MD every year. he would be there every year with his wife at the table proudly displaying his homebrew keys and his vintage transmitter. It is hard to believe that he has passed on. he will be missed by many I am sure.