 OfflineNewbie
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« on: December 12, 2012, 01:31:57 pm » |
Hi guys,
I am making a wordclock with an LED matrix, please check the schematics for any mistakes.
Thanks!!
Max
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Queens, New York
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Edison Member
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"Of all the things I've ever lost, I miss my mind the most" -Ozzy Osbourne
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« Reply #1 on: December 12, 2012, 01:42:33 pm » |
I don't see why it wouldn't work.
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UNO, MEGA, NANO, 4x4 keypad, micro servos, RF transceivers, bluetooth, ultrasonic sensor, 20x4 I2C LCD, 3.2 TFT touch screen, L298N Dual motor driver, Voice Recognition 15W, Gameduino
Arduino Tutorials, coming soon.
"If your doing nothing, it does not mean your lazy, it just means your open for anything that suits you" - Unknown
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Newbie
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« Reply #2 on: December 12, 2012, 01:43:56 pm » |
alright, thanks!
I just wanted to get sure because the board will already be etched on friday
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Queens, New York
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Edison Member
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Posts: 1590
"Of all the things I've ever lost, I miss my mind the most" -Ozzy Osbourne
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« Reply #3 on: December 12, 2012, 01:46:33 pm » |
WAIT, did you test it first? Just because I don't see anything wrong with it, does not mean there is nothing wrong. You always need to test and re-test first, before you make a board.
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UNO, MEGA, NANO, 4x4 keypad, micro servos, RF transceivers, bluetooth, ultrasonic sensor, 20x4 I2C LCD, 3.2 TFT touch screen, L298N Dual motor driver, Voice Recognition 15W, Gameduino
Arduino Tutorials, coming soon.
"If your doing nothing, it does not mean your lazy, it just means your open for anything that suits you" - Unknown
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nr Bundaberg, Australia
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Scattered showers my arse -- Noah, 2348BC.
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« Reply #4 on: December 12, 2012, 06:29:04 pm » |
I'd be e bit worried about the current-sourcing ability of the '595s, they really aren't designed to drive LED statically and if you're multiplexing you need more current than usual. IIRC they can source maybe 6-7mA, check it out.
You may find the LEDs won't be bright enough.
______
Rob
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« Reply #5 on: December 13, 2012, 02:07:17 am » |
That's why I have the Darlington Arrays
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nr Bundaberg, Australia
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Scattered showers my arse -- Noah, 2348BC.
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« Reply #6 on: December 13, 2012, 06:42:33 am » |
I have the Darlington Arrays For sinking the rows, it's sourcing the columns I'm on about. You know there are single chips that do this and more, for example the AS1130. _____ Rob |
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