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1  Using Arduino / Project Guidance / send IR with USB Serial adapter (use tx pin?) on: February 28, 2013, 05:34:49 am
Hi All,

The title may say it all, I'm looking for a very simple way to send an IR signal with a computer. I think it is overkill to use an Arduino, so I was thinking there might be a way to use a simple usb to serial adapter and use the TX port to blink the LED.
Only thing is, how do I control this signal and make it send out a correct IR code?

Preferably the signal is send by a BAT script on a windows computer. This way I can switch the television on when booting my computer!

Thanks for the help!
2  Using Arduino / Project Guidance / piano floor on: February 13, 2013, 07:16:48 am
Hi All,

As the title suggests I'm trying to make a piano floor. We all might have seen such floors on the web, but I'm trying a different approach.
I do not want to use mats, I want to recognise the presses from a wall.

So far I was trying to use ultrasonic sensors, but when you need 11 of them within 40cm distance from each other they start to interfere and the individual steps don't work anymore.

Then I was thinking something like a beam crossing solution found in alarm systems and shop entries, but these require a reflector, which is not feasible in my solution.

The distance they should work is around 3-4 meters, so this rules out any IR sensor...

Maybe some of you have any good ideas how I can solve this!

Thanks!
3  Using Arduino / Networking, Protocols, and Devices / Re: Ethernet Sheild from China (ENC28J60) on: February 27, 2012, 05:53:51 am
GOT IT!

The trick is to set the SD card pin high in setup:
Code:
pinMode(4, OUTPUT);
  digitalWrite(4, HIGH);

After this, everything works like a charm, excellent!
4  Using Arduino / Networking, Protocols, and Devices / Re: Ethernet Sheild from China (ENC28J60) on: February 27, 2012, 04:02:35 am
@west10degrees Any luck yet getting the shield to work?

I'm still having trouble, although I'm using the correct library, pin settings, etc...
5  Using Arduino / Networking, Protocols, and Devices / Re: Ethernet Sheild from China (ENC28J60) on: February 24, 2012, 02:04:05 pm
I have the same issues, but I'm using the correct library!

This hardware: http://www.ekitszone.com/p/11/enc28j60-ethernet-shield-for-arduino-uno-duemilanove
This library: https://github.com/jcw/ethercard

I'm setting with a third parameter, because this board uses pin 10 and not 8:
Code:
if (ether.begin(sizeof Ethernet::buffer, mymac, 10) == 0)

Somehow though the code does not execute after this if statement... the leds in the socket blink, there is nothing else connected on the board and I'm using an Arduino Uno with Arduino software version 1.0 on OSX.

edit: To clarify, I also tried setting a static ip, but no luck either...


6  Forum 2005-2010 (read only) / Development / Re: Lego powerfunctions IR on: January 21, 2011, 08:25:46 am
Yes, please share the code!
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