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Forum Index : Microcontroller and PC projects : 8x8 LED Matrix by 3
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| MM_Wombat Senior Member  Joined: 12/12/2011 Location: AustraliaPosts: 139 |
Just a link to a work in progress project I was working on. Uses 3, 8x8 led matrix's with 3 Austria Microsystems AS1107 chips. [Dip] Modified Geoff's spi routine (8 bit) to a 16 bit routine, with Geoff's permission. Hopefully updated into V3.2 (please Geoff). Also works by sending two 8 bit commands each time(per column). Scrolling delay is 51ms.... 1 ms is a blur..... 
Maximite8x8 Size 4.4 Mb, Format Divx avi mm_Wombat  Keep plugging away, it is fun learning But can be expensive (if you keep blowing things up). Maximite, ColourMaximite, MM+ |
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Gizmo Admin Group  Joined: 05/06/2004 Location: AustraliaPosts: 5078 |
Nice Wombat. Are they expensive, the matrix and chip? Glenn The best time to plant a tree was twenty years ago, the second best time is right now. JAQ |
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| MM_Wombat Senior Member Joined: 12/12/2011 Location: AustraliaPosts: 139 |
8x8 Matrix was $1.80 each from Futurlec.com.au AS1107 was listed as 2.95 USD each from Austria. Actually I got them as a free sample, as the project was something for my workplace...for evaluation. They come in DIP-24 or SOIC-24(15.4mmx10.3mm) packages..SPI interface Originally I wanted to use the AS1116 (similar design) listed at $2.99 US which come in a QSOP-24(8.6mmx6mm) and TQFN(4x4)-24 (4mmx4mm) packages. SPI and I2C interfaces(AS1115) I received 3 chips of each for free(sample) FEDEX'ed from Austria to our Company's door in under a week. Very good service. Packages when ordered were TQFN, then QSOP, then DIP. I can't solder surface mount for Sh!t.. 
Links: AS1107 & AS1116 Keep plugging away, it is fun learning But can be expensive (if you keep blowing things up). Maximite, ColourMaximite, MM+ |
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