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

I am using the scanning method for a matrix and I am not getting the brightness that I need out of the leds on a display, is there a calculation based on the current limiting resistors, voltage and duty cycle or on time that will allow me to calculate what I need? Also whatwould the on time be with the .4ms scan time. I used a scope to check some of this out and I came up with what I think is about 500ms on time for the led and 25% duty cycle. Someone correct me on this if I am totally wrong!
 

Thanks,

Kevin

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