Is it possible to make a matrix of 1:4 scan to work as 1:8?

hzeller / rpi-rgb-led-matrix

Controlling up to three chains of 64x64, 32x32, 16x32 or similar RGB LED displays using Raspberry Pi GPIO

GNU General Public License v2.0

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Is it possible to make a matrix of 1:4 scan to work as 1:8? #1052

Open salazarhog opened 4 years ago

salazarhog commented 4 years ago

I have many 16x32 1:4 scan displays.

By 1:4 it means that 4 rows will be turned on. Is it possible to imitate the behaviour of 1:4 to 1:8 with the controller?

We will have to turn on 2 rows only from a selection area of 8 rows. Can you point me where exactly do I need to make this change in the frame buffer?

Purpose: To visualise the whole display with 1:8 scan performance which are usually cheaper. Cut down the power requirement of 1:4 panel with trading off the performance

hzeller commented 4 years ago

I don't quite understand what you want to do, but 1:4 scan or 1:8 scan is a property of the LED panel that you can't easily change.

What you can change in the rpi-rgb-led-matrix is the choice of --led-multiplexing, which is the option to switch between panels of different multiplex-size.