Comments for Tinkerlog http://tinkerlog.com Alex' blog Wed, 20 Aug 2008 20:10:58 +0000 http://wordpress.org/?v=2.1 Comment on Synchronizing Fireflies NG by Alex http://tinkerlog.com/2008/07/27/synchronizing-fireflies-ng/#comment-24433 Alex Mon, 18 Aug 2008 06:30:01 +0000 http://tinkerlog.com/2008/07/27/synchronizing-fireflies-ng/#comment-24433 Justin, common anode means the pins are active low. It should work if you swap the lines that switch the LED on and off. So swap the line PORTB |= (1 << R_BIT); // switch on with PORTB &= ~(1 << R_BIT); // switch off and do so for G and B as well. Cheers, Alex Justin,
common anode means the pins are active low. It should work if you swap the lines that switch the LED on and off. So swap the line
PORTB |= (1 << R_BIT); // switch on
with
PORTB &= ~(1 << R_BIT); // switch off
and do so for G and B as well.
Cheers,
Alex

]]> Comment on Synchronizing Fireflies NG by Justin Winter http://tinkerlog.com/2008/07/27/synchronizing-fireflies-ng/#comment-24422 Justin Winter Mon, 18 Aug 2008 02:44:40 +0000 http://tinkerlog.com/2008/07/27/synchronizing-fireflies-ng/#comment-24422 Great project. I have everything "mostly" working on my breadboard with two attiny13's, but I'm wondering how you would modify your code to work with a common annode rgb led? I've got the smart-led code you reference to work well and that was built originally using a common annode rgb led but that code makes it easy with a simple commented out line for cathode vs. annode. Still getting my head wrapped around this stuff :) thanks for any direction. Great project. I have everything “mostly” working on my breadboard with two attiny13’s, but I’m wondering how you would modify your code to work with a common annode rgb led?

I’ve got the smart-led code you reference to work well and that was built originally using a common annode rgb led but that code makes it easy with a simple commented out line for cathode vs. annode.

Still getting my head wrapped around this stuff :) thanks for any direction.

]]> Comment on Using Google Maps with a Mobile GPS Tracker by Peter http://tinkerlog.com/2007/07/28/using-google-maps-with-a-mobile-gps-tracker/#comment-24397 Peter Sun, 17 Aug 2008 21:10:26 +0000 http://tinkerlog.com/2007/07/28/using-google-maps-with-a-mobile-gps-tracker/#comment-24397 hi alex, we have a gps tracking device which send's it's location with a map link to our smart phone, the link includes the internet address to maps.google.com/maps, followed by the parameters which include longitude and latitude (similar to what you mention). However, the problem is, when we use the link on the phone (palm treo 500) the internet is started and the google map screen is displayed, but without any map. the google screen displayed as a search box which is empty (which normally you would enter the search parameters into if you were going directly to the google screen). if you enter the search parameters in here and press search, you get the same result (the screen is re-displayed but no map). Note. we have checked with our network supplier and they have confirmed we have a gprs data connection. this link works fine if you use it on a pc. any idea why it will not work on the smart phone, or if it could work. any assistance would be grateful. thanks. hi alex,
we have a gps tracking device which send’s it’s location with a map link to our smart phone, the link includes the internet address to maps.google.com/maps, followed by the parameters which include longitude and latitude (similar to what you mention). However, the problem is, when we use the link on the phone (palm treo 500) the internet is started and the google map screen is displayed, but without any map. the google screen displayed as a search box which is empty (which normally you would enter the search parameters into if you were going directly to the google screen). if you enter the search parameters in here and press search, you get the same result (the screen is re-displayed but no map). Note. we have checked with our network supplier and they have confirmed we have a gprs data connection. this link works fine if you use it on a pc. any idea why it will not work on the smart phone, or if it could work. any assistance would be grateful. thanks.

]]> Comment on Synchronizing Fireflies NG by Alex http://tinkerlog.com/2008/07/27/synchronizing-fireflies-ng/#comment-24331 Alex Sun, 17 Aug 2008 12:39:33 +0000 http://tinkerlog.com/2008/07/27/synchronizing-fireflies-ng/#comment-24331 Oliver, thanks, yes, I thought of that too. The ping pong ball would be a great enclosure. But I am not sure if the light sensor will be sensitive enough if it was placed inside. Maybe I'll try that. Cheers, Alex Oliver,
thanks, yes, I thought of that too. The ping pong ball would be a great enclosure. But I am not sure if the light sensor will be sensitive enough if it was placed inside. Maybe I’ll try that.
Cheers,
Alex

]]> Comment on Synchronizing Fireflies NG by Oliver http://tinkerlog.com/2008/07/27/synchronizing-fireflies-ng/#comment-24321 Oliver Sun, 17 Aug 2008 10:52:51 +0000 http://tinkerlog.com/2008/07/27/synchronizing-fireflies-ng/#comment-24321 Great Work! I wonder if it would be possible to place (nearly) all electronics inside the ping pong ball? Perhaps if the µC and the resistors are in SMD technique? Oliver Great Work!
I wonder if it would be possible to place (nearly) all electronics inside the ping pong ball? Perhaps if the µC and the resistors are in SMD technique?

Oliver

]]> Comment on Synchronizing Fireflies NG by Tims Blog » Blog Archive » Under the weather http://tinkerlog.com/2008/07/27/synchronizing-fireflies-ng/#comment-23988 Tims Blog » Blog Archive » Under the weather Fri, 15 Aug 2008 16:12:50 +0000 http://tinkerlog.com/2008/07/27/synchronizing-fireflies-ng/#comment-23988 [...] synchronizing fireflies ng [...] […] synchronizing fireflies ng […]

]]> Comment on Synchronizing Fireflies NG by Alex http://tinkerlog.com/2008/07/27/synchronizing-fireflies-ng/#comment-23913 Alex Fri, 15 Aug 2008 06:36:10 +0000 http://tinkerlog.com/2008/07/27/synchronizing-fireflies-ng/#comment-23913 No, definitely not. The fireflies have to stay really close together, at most 15 cm apart from each other. The LDR and the phototransistor did not make a noticable difference. Take a look at the video at the top of this posting. It shows, how far apart two fireflies can be without sensing each other. No, definitely not. The fireflies have to stay really close together, at most 15 cm apart from each other. The LDR and the phototransistor did not make a noticable difference.
Take a look at the video at the top of this posting. It shows, how far apart two fireflies can be without sensing each other.

]]> Comment on Synchronizing Fireflies NG by AirRock http://tinkerlog.com/2008/07/27/synchronizing-fireflies-ng/#comment-23898 AirRock Fri, 15 Aug 2008 04:48:49 +0000 http://tinkerlog.com/2008/07/27/synchronizing-fireflies-ng/#comment-23898 What is the effective range of the LDR and later the phototransistor? Could several Fireflies be spread around the room with enough sensitivity to sync with the rest? What is the effective range of the LDR and later the phototransistor? Could several Fireflies be spread around the room with enough sensitivity to sync with the rest?

]]> Comment on Synchronizing Fireflies NG by Alex http://tinkerlog.com/2008/07/27/synchronizing-fireflies-ng/#comment-23810 Alex Thu, 14 Aug 2008 17:40:50 +0000 http://tinkerlog.com/2008/07/27/synchronizing-fireflies-ng/#comment-23810 David, the fireflies can only connect to their direct neighbours, in that there is a difference to neurons, which are more widely connected. MadScott, no, the firefly is blind, when it flashes, so it won't see it's flash in the mirror. Ok, it depends, on how far you put the mirror ;) David,
the fireflies can only connect to their direct neighbours, in that there is a difference to neurons, which are more widely connected.

MadScott,
no, the firefly is blind, when it flashes, so it won’t see it’s flash in the mirror. Ok, it depends, on how far you put the mirror ;)

]]> Comment on Synchronizing Fireflies NG by MadScott http://tinkerlog.com/2008/07/27/synchronizing-fireflies-ng/#comment-23768 MadScott Thu, 14 Aug 2008 11:06:16 +0000 http://tinkerlog.com/2008/07/27/synchronizing-fireflies-ng/#comment-23768 Well done -- always interesting to see how this is progressing. If you put one in front of a mirror, does it go crazy? Well done — always interesting to see how this is progressing. If you put one in front of a mirror, does it go crazy?

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