• Electronics and Embedded Programming
    3,297 replies, posted
  • I don't have one, i can try creating a little matrix out of normal leds, but how am i going to let them blink separately when they are in a row on a breadboard connected to each other :/.
  • [QUOTE=ddrl46;19723591]I really need to get some ideas for projects, anyone has some?[/QUOTE] I'm gonna use an AVR chip and a bitchton of LEDs to make a [URL="http://www.youtube.com/watch?v=-zHq4UVICPI"]saccadic POV[/URL] display up on my wall. I originally wanted to have ticker text going across it, but then I realized that for the eye movements to be able to construct this into an image to be right, I don't think I'd be able to read text.
  • I'm probably going to look for a serial LCD so I don't need sixty wires hanging off my board. It would be interesting to make one work with my Ethernet shield and send text messages to the board.
  • You can get those at adafruit for like 15 dollars. Need to get one myself sometime too.
  • [QUOTE=benjgvps;19724038]I'm probably going to look for a serial LCD so I don't need sixty wires hanging off my board. It would be interesting to make one work with my Ethernet shield and send text messages to the board.[/QUOTE] Or, you can just use a UART and connect it to your PC to use as a debugging or communications interface. Your hardware invariably already has [I]at least [/I]one UART.
  • I've got one. I've wired up a dual seven segment display to (a resistor for each one - I don't need to tell you it was dull as fuck), and figured out the pins for it, but I think I had trouble object orientating it. The goal was to make a thermometer using a thermistor, which I was calibrating for physics. Even fucking wrote a solver for the proper equation, but it didn't work (linear simultaneous equation solver, I was choosing the pivot wrongly - maybe I'll go back to it one day, and hopefully it'll work). I think it's a duemilnovae thingy.
  • [img]http://img.hexxeh.net/a41efc08fa92a978143882c8318757e7.jpg[/img] Add me, Duemilanove.
  • Nice one hexxeh. Added you. I found a dutch website with really cheap and awesome parts, [url]www.conrad.nl[/url]. Going to buy a soldering iron to assemble my Protoshield :D.
  • I'm going to build my own Arduino board, quite a bit cheaper than buying one premade.
  • Yeah, try the touch shield. You could also try LCD screens with a pressure sensor behind them.
  • [QUOTE=ddrl46;19727953]You could also try LCD screens with a pressure sensor behind them.[/QUOTE] I saw something like that on Hak5, except with a full size (19") LCD monitor. :v: I'm seriously considering picking one up. Some of those starter kits look kind of expensive to me, and I don't know how much of that I stuff I actually need. Is there something simple I can order? Like just get the arduino board and a handful of wires? Or am I going to need resistors, transistors and the like? I was kind of planning on doing some simple stuff, then moving up to an ethernet shield. I'd kind of like to run a webserver on it, but it'd probably be too hard. Edit: Arduinos don't require a soldering iron or knowledge of soldering do they? I don't believe they do.
  • [QUOTE=PvtCupcakes;19728845]Edit: Arduinos don't require a soldering iron or knowledge of soldering do they? I don't believe they do.[/QUOTE] It's definitely easier to put together a project if you do some soldering, but it's not required. You can always stick to breadboarding if you want.
  • Still not on the list :saddowns: I worked out a Charlieplexing Schematic for 12 LEDs using 4 pins (aka you can control 12 leds with only 4 pins, all can be turned on individually)
  • [QUOTE=DrLuke;19733752]Still not on the list :saddowns: I worked out a Charlieplexing Schematic for 12 LEDs using 4 pins (aka you can control 12 leds with only 4 pins, all can be turned on individually)[/QUOTE] I haven't heard of charlieplexing before. That looks like something I should look into more.
  • Yeah, I [I]had[/I] a Duemillinove, but some jackass stole from the classroom overnight. I was gonna do a presentation with it too :gonk: But I do plan on getting a new one. And (several) LED matrices. Eventually, I want to make a MIDI controller.
  • Ah ha! [url]http://www.robotshop.ca/sfe-serial-enabled-16x2-lcd-white-on-black-5v.html[/url] Seems like a nice deal for a decent LCD. Only needs three wires too.
  • [QUOTE=benjgvps;19737525]Ah ha! [url]http://www.robotshop.ca/sfe-serial-enabled-16x2-lcd-white-on-black-5v.html[/url] Seems like a nice deal for a decent LCD. Only needs three wires too.[/QUOTE] Looks pretty cool, is it compatible with RS232?
  • I also have an arduino (Duemilanove) I'm currently making a robotic arm in plexiglas, programmable by simply moving it and pressing a button to store the positions. Ran out of servos though so i can't finish it till i order some more :( I have few LCD screens, but i can't find the datasheet online so i haven't figured out how to use them yet (One is an optronics 40x4 characters, and the other ones doesn't have anything useful written on them but they are 20x2 with the 4400HD controller) if anyone have some tips to figure them out please tell me :)
  • Reading this thread really makes me want to get an Arduino. Also, is it pronounced Ar-jew-ee-no, or Ar-dwee-no?
  • Ar-dwee-no. [editline]01:23PM[/editline] And i noticed my thread really makes people get a arduino, for example my friend.
  • [QUOTE=ddrl46;19740798]Ar-dwee-no. [editline]01:23PM[/editline] And i noticed my thread really makes people get a arduino, for example my friend.[/QUOTE] Actually some thread about 3 leds and an ethernet shield on this forum made me buy an arduino :)
  • I went to a BarCamp in 09. I have been looking at Arduinos ever since the Diecemilla (08). BarCamp just gave me a good reason to finally get one :P
  • [QUOTE=turby;19739266]Reading this thread really makes me want to get an Arduino. Also, is it pronounced Ar-jew-ee-no, or Ar-dwee-no?[/QUOTE] [url]http://arduino.cc/en/uploads/Main/Arduino_Duemilanove.mp3[/url]
  • If I was to add some small 3V motors to be controlled by the Arduino, I would probably have to use some transistors right?
  • Bought some awesome stuff for my arduino, 2 Bargraphs, 1 with 3 reds and 7 greens, other totally red. 1 IR Sensor 6 Green Leds 6 Yellow Leds 6 Red Leds 1 Soldering Iron 1 Solder 100 Resistors € 25,00 Total Pretty awesome deal, free shipping. Stupid that i forgot about the damn cheap led matrices, but i'm happy. Can't wait for my package so i can finally assemble my protoshield.