In SX Microcontrollers, SX/B Compiler and SX-Key Tool, Thurston_Howell wrote:

Hello again!

I've had great luck with these signs.  I have 4 of them cascaded and working.

Holtek tells me that the PWM works on an individual pixel basis, so that you have 16 brightness levels for each pixel.  However, the best that I can do is to set a PWM level for one entire panel.  With four panels I can have 4 different brightness levels, but it doesn't seem to address anything smaller than an entire panel.

Have you played around with the PWM?

When I'm scrolling, I noticed faint horizontal bands, some form of "ghosting".  I'm wondering if I should do an LED_OFF, update all of the panel memory addresses then an LED_ON?


I've also used Sure Electronic's 16*24 and it works very well, too.

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