Comments on: Electronic Odyssey – pt.1.5 – First steps, and some info on driving 8×8 rgb matrixes http://jafoca.com/tech/electronic-odyssey-pt15-first-steps-and-some-info-on-driving-8x8-rgb-matrixes Cramming as much into my life as possible. Tech product reviews, work, etc... Mon, 06 Jul 2009 15:54:23 +0000 http://wordpress.org/?v=2.9.2 hourly 1 By: jafoca http://jafoca.com/tech/electronic-odyssey-pt15-first-steps-and-some-info-on-driving-8x8-rgb-matrixes/comment-page-1#comment-9 jafoca Thu, 09 Apr 2009 18:16:34 +0000 http://jafoca.com/?p=279#comment-9 Stone, It is good to see that you are making progress (conceptually at least!) - keep me updated on how it works once you get your breadboard in. Since I got a bunch of stuff from DigiKey, I have been pretty afraid of plugging anything in for fear of ruining it! I have been reading the book I mentioned so that I know better what I am getting myself into... Stone,

It is good to see that you are making progress (conceptually at least!) – keep me updated on how it works once you get your breadboard in.

Since I got a bunch of stuff from DigiKey, I have been pretty afraid of plugging anything in for fear of ruining it! I have been reading the book I mentioned so that I know better what I am getting myself into…

]]> By: stonechild http://jafoca.com/tech/electronic-odyssey-pt15-first-steps-and-some-info-on-driving-8x8-rgb-matrixes/comment-page-1#comment-8 stonechild Thu, 09 Apr 2009 17:01:54 +0000 http://jafoca.com/?p=279#comment-8 Funny. I got my 8x8 Matrix from Seeed Studio on eBay too. I've spent some more time looking at the schematic that I found at the the sparkfun site: http://www.sparkfun.com/datasheets/Components/matrix_backpack.pdf Controlling the matrix is not as complicated as it seems. It's still complicated, though, and also from the software side. The controller is just a simple Atmega, three 8 bit Shift Register DIP-16s (74LSC595), and the matrix. I just received 10 of the 74HC595s from an eBay seller figuring they would be useful, since I come across lots of references to them when dealing with multiple LEDS. Now I have to find out if the HC - LS in the part name makes a difference. I would guess not. Stopped to look it up. The 74LS595 and the 74HC595 are functionally equivalent. I thought the Maker people had a video on Youtube that demonstrated the shift registers, but I can't find it now. It's basically the same as the the tutorial here: http://www.arduino.cc/en/Tutorial/ShiftOut I don't have any breadboards yet. A soon as I get them, I'm going to try this out. Funny. I got my 8×8 Matrix from Seeed Studio on eBay too. I’ve spent some more time looking at the schematic that I found at the the sparkfun site:

http://www.sparkfun.com/datasheets/Components/matrix_backpack.pdf

Controlling the matrix is not as complicated as it seems. It’s still complicated, though, and also from the software side. The controller is just a simple Atmega, three 8 bit Shift Register DIP-16s (74LSC595), and the matrix. I just received 10 of the 74HC595s from an eBay seller figuring they would be useful, since I come across lots of references to them when dealing with multiple LEDS. Now I have to find out if the HC – LS in the part name makes a difference. I would guess not.

Stopped to look it up. The 74LS595 and the 74HC595 are functionally equivalent.

I thought the Maker people had a video on Youtube that demonstrated the shift registers, but I can’t find it now. It’s basically the same as the the tutorial here:

http://www.arduino.cc/en/Tutorial/ShiftOut

I don’t have any breadboards yet. A soon as I get them, I’m going to try this out.

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