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Arduino Projects of the Web

41 points by raju 17y ago

pasbesoin 17y ago
There's a fellow in Iowa using an Arduino as part of a GPS guidance system he developed for his tractor. http://www.arduino.cc/cgi-bin/yabb2/YaBB.pl?num=1254445743 http://www.arduino.cc/cgi-bin/yabb2/YaBB.pl?num=1254445743 Last I checked, he had his variance from ideal track down to 1.5 inches. Interesting read.
metachris 17y ago
Too bad that the #1 project (Arduino driving on 2 wheels like a segway) was last updated in 2008 :( Would be great if the author keeps working on the project and the Arduino2Lego library - http://www.arduino.cc/cgi-bin/yabb2/YaBB.pl?num=1221664564 http://www.arduino.cc/cgi-bin/yabb2/YaBB.pl?num=1221664564 - http://sourceforge.net/projects/a2l/files/ http://sourceforge.net/projects/a2l/files/
ambiate 17y ago
I just got my arduino kit in the mail yesterday from the free day (also known as break my f5 key day). I stayed up all night toying with some infrared lights. I removed the infrared sensor from my craptacular logitech webcam and the fun began. The first thing I noticed from hooking up a few hundred ir leds (best $5 spent on ebay) was the heat the board was producing. This makes me consider dusting off the nerd kit and hooking up the TX/RX to the nerd kit and have 1/4 of the leds on the nerd kit and some of the data processing working there. My end goal is to make a tablet, but right now I'm just toying with a desk sized white board.
- CrLf 17y ago
  The regulator on the Arduino is made only for low current output (500mA max, I think), not to mention the Arduino pins should not exceed 20mA or they will most likely burn out. If you are drawing enough current to make the board (I'm assuming, the regulator) go hot, you should be using a bigger external regulator to power the LEDs.
- compumike 17y ago
  Hey ambiate, I think you were one of the first few hundred USB NerdKit customers, before we added the 2N7000 MOSFETs to the mix. Those would probably make your life easier in terms of controlling a bunch of of LEDs at once just for pure power handling reasons. (Won't dive into this here -- ask on our forums for more info.) If you haven't logged in to our site recently, then be aware that we have lots of customers playing with IR at the moment, for example: a custom IR TX/RX remote control (two separate microcontrollers) plus accelerometer at http://www.nerdkits.com/forum/thread/458/ http://www.nerdkits.com/forum/thread/458/ a intervalometer, sending commands to a Nikon or Canon camera via IR remote protocol at http://www.nerdkits.com/forum/thread/338/ http://www.nerdkits.com/forum/thread/338/ as well as lots of customers getting into our recently-released LED Array Kit and controlling lots of LEDs (although where individual control is favored over total brightness). Mike (co-founder, NerdKits)
  - ambiate 17y ago
    Thanks Mike! You're absolutely correct. At 20 cents a pop I can't really complain either. On a side note, I'm absolutely floored by a response not only on HN but by email too! That's great business. Thanks for the links and info.
nraynaud 17y ago
Like the laser harp show ? http://www.youtube.com/watch?v=8Tfoto7sokk http://www.youtube.com/watch?v=8Tfoto7sokk concert given in 1990 The lasers where going up to the Arc de triomphe (actually relayed from the top of the harp for security reasons I suppose)
homerjoe 17y ago
OMG! New favorite site - Hack N Mod is incredible! More Arduino projects: http://hacknmod.com/topics/arduino/ http://hacknmod.com/topics/arduino/

41 points by raju 17y ago

There's a fellow in Iowa using an Arduino as part of a GPS guidance system he developed for his tractor. http://www.arduino.cc/cgi-bin/yabb2/YaBB.pl?num=1254445743 http://www.arduino.cc/cgi-bin/yabb2/YaBB.pl?num=1254445743 Last I checked, he had his variance from ideal track down to 1.5 inches. Interesting read.

metachris 17y ago

Too bad that the #1 project (Arduino driving on 2 wheels like a segway) was last updated in 2008 :( Would be great if the author keeps working on the project and the Arduino2Lego library - http://www.arduino.cc/cgi-bin/yabb2/YaBB.pl?num=1221664564 http://www.arduino.cc/cgi-bin/yabb2/YaBB.pl?num=1221664564 - http://sourceforge.net/projects/a2l/files/ http://sourceforge.net/projects/a2l/files/

ambiate 17y ago

I just got my arduino kit in the mail yesterday from the free day (also known as break my f5 key day). I stayed up all night toying with some infrared lights. I removed the infrared sensor from my craptacular logitech webcam and the fun began. The first thing I noticed from hooking up a few hundred ir leds (best $5 spent on ebay) was the heat the board was producing. This makes me consider dusting off the nerd kit and hooking up the TX/RX to the nerd kit and have 1/4 of the leds on the nerd kit and some of the data processing working there. My end goal is to make a tablet, but right now I'm just toying with a desk sized white board.

CrLf 17y ago
The regulator on the Arduino is made only for low current output (500mA max, I think), not to mention the Arduino pins should not exceed 20mA or they will most likely burn out. If you are drawing enough current to make the board (I'm assuming, the regulator) go hot, you should be using a bigger external regulator to power the LEDs.
compumike 17y ago
Hey ambiate, I think you were one of the first few hundred USB NerdKit customers, before we added the 2N7000 MOSFETs to the mix. Those would probably make your life easier in terms of controlling a bunch of of LEDs at once just for pure power handling reasons. (Won't dive into this here -- ask on our forums for more info.) If you haven't logged in to our site recently, then be aware that we have lots of customers playing with IR at the moment, for example: a custom IR TX/RX remote control (two separate microcontrollers) plus accelerometer at http://www.nerdkits.com/forum/thread/458/ http://www.nerdkits.com/forum/thread/458/ a intervalometer, sending commands to a Nikon or Canon camera via IR remote protocol at http://www.nerdkits.com/forum/thread/338/ http://www.nerdkits.com/forum/thread/338/ as well as lots of customers getting into our recently-released LED Array Kit and controlling lots of LEDs (although where individual control is favored over total brightness). Mike (co-founder, NerdKits)
- ambiate 17y ago
  Thanks Mike! You're absolutely correct. At 20 cents a pop I can't really complain either. On a side note, I'm absolutely floored by a response not only on HN but by email too! That's great business. Thanks for the links and info.

nraynaud 17y ago

Like the laser harp show ? http://www.youtube.com/watch?v=8Tfoto7sokk http://www.youtube.com/watch?v=8Tfoto7sokk concert given in 1990 The lasers where going up to the Arc de triomphe (actually relayed from the top of the harp for security reasons I suppose)

homerjoe 17y ago

OMG! New favorite site - Hack N Mod is incredible! More Arduino projects: http://hacknmod.com/topics/arduino/ http://hacknmod.com/topics/arduino/