Arduino lags when darawing LCDs

Using Arduino Displays
#1

Hi guys,

I have 4 8x8 LCD matrix. If I draw some pattern for two of them, my Arduino freezes. I can't do something else. For example, I can't give another order to remaining 2 LCD matrix to draw some pattern I have to wait for the first two to do the task. Why is it so? Should I implement master-slave pattern? So that I one master and two slaves. If that is the case should I use some I2C protocol or something else?

Thanks!

#2

Imagine that people reading your post know absolutely nothing about your code or hardware.
Read it back to yourself.

Now, try again.

#3

TolpuddleSartre:
Imagine that people reading your post know absolutely nothing about your code or hardware.
Read it back to yourself.

Now, try again.

Thanks for answer

I try again. I cannot draw different patterns to two different LCD matrix simultaneously.
Let's say I have two 8x8 dot matrix.
When I want to draw some pattern to the first one and at the same time to another LCD matrix, I have to wait the first one to be drawed and only then I can change the second one pattern

#4

You need to interleave the drawing process, alternating between displays.

#5