WordClock Faceplate Lasered
Image by eok.gnah
Single Arduino Charlieplexed 110+4 LED Display
The whole Clock is realized without any additional driver chips!
Only one Arduino (328) and a simple RTC is used and 114 LED's of course.
Used Arduino-Ports:
0 & 1 = rx/tx (for reprogramming)
2 = UNUSED!!! ;-)
3 - 13 = 11x10 LED-Array Crarlieplexed
A0 & A1 = i²c for RTC
A2 - A5 = the 4 Minute-LEDs for the four corners
Modified the LOL-Shield Library a bit for the 11x10 Size and my layout.
Works like a charm.
Sure, without Resistors, the LEDs a a bit overdriven, but it looks like it compensates the 110:1 duty cycle quite well. And since the original LOL-Shield does not have any resistors too, i think (hope) it will work for longer too.
The Sketch ist basicly just the RTC-Example and some added "if, then light this and that led" statements.
More Pictures and Videos here:
www.flickr.com/photos/eokgnah/sets/72157626846176659/with...
WordClock Faceplate Lasered
Image by eok.gnah
Single Arduino Charlieplexed 110+4 LED Display
The whole Clock is realized without any additional driver chips!
Only one Arduino (328) and a simple RTC is used and 114 LED's of course.
Used Arduino-Ports:
0 & 1 = rx/tx (for reprogramming)
2 = UNUSED!!! ;-)
3 - 13 = 11x10 LED-Array Crarlieplexed
A0 & A1 = i²c for RTC
A2 - A5 = the 4 Minute-LEDs for the four corners
Modified the LOL-Shield Library a bit for the 11x10 Size and my layout.
Works like a charm.
Sure, without Resistors, the LEDs a a bit overdriven, but it looks like it compensates the 110:1 duty cycle quite well. And since the original LOL-Shield does not have any resistors too, i think (hope) it will work for longer too.
The Sketch ist basicly just the RTC-Example and some added "if, then light this and that led" statements.
More Pictures and Videos here:
www.flickr.com/photos/eokgnah/sets/72157626846176659/with...
WordClock Spacer Lasered
Image by eok.gnah
Single Arduino Charlieplexed 110+4 LED Display
The whole Clock is realized without any additional driver chips!
Only one Arduino (328) and a simple RTC is used and 114 LED's of course.
Used Arduino-Ports:
0 & 1 = rx/tx (for reprogramming)
2 = UNUSED!!! ;-)
3 - 13 = 11x10 LED-Array Crarlieplexed
A0 & A1 = i²c for RTC
A2 - A5 = the 4 Minute-LEDs for the four corners
Modified the LOL-Shield Library a bit for the 11x10 Size and my layout.
Works like a charm.
Sure, without Resistors, the LEDs a a bit overdriven, but it looks like it compensates the 110:1 duty cycle quite well. And since the original LOL-Shield does not have any resistors too, i think (hope) it will work for longer too.
The Sketch ist basicly just the RTC-Example and some added "if, then light this and that led" statements.
More Pictures and Videos here:
www.flickr.com/photos/eokgnah/sets/72157626846176659/with...
WordClock Lasering Faceplate
Image by eok.gnah
Single Arduino Charlieplexed 110+4 LED Display
The whole Clock is realized without any additional driver chips!
Only one Arduino (328) and a simple RTC is used and 114 LED's of course.
Used Arduino-Ports:
0 & 1 = rx/tx (for reprogramming)
2 = UNUSED!!! ;-)
3 - 13 = 11x10 LED-Array Crarlieplexed
A0 & A1 = i²c for RTC
A2 - A5 = the 4 Minute-LEDs for the four corners
Modified the LOL-Shield Library a bit for the 11x10 Size and my layout.
Works like a charm.
Sure, without Resistors, the LEDs a a bit overdriven, but it looks like it compensates the 110:1 duty cycle quite well. And since the original LOL-Shield does not have any resistors too, i think (hope) it will work for longer too.
The Sketch ist basicly just the RTC-Example and some added "if, then light this and that led" statements.
More Pictures and Videos here:
www.flickr.com/photos/eokgnah/sets/72157626846176659/with...
Supreme Engraving
Image by Destinys Agent
Picture glass designer branding produced for Martin Hobby Photography www.martinhobby.co.uk/ by Supreme Crystal Art - www.supremecrystalart.co.uk
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