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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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Invalid row sequence in 32x16 module #730

Open VadymKotsiuba opened 5 years ago

VadymKotsiuba commented 5 years ago

I have a 32x16 module. I connect the module to Raspberry Pi Zero W using Adafruit Bonnet. I use the program rpi-fb-matrix to display part of the screen on the LED module. For the test I use the image "32x16_RECT_TRUE".(1-st image) As a result, on the module I see such as on the images "32x16_RECT_FALSE" and "REAL_PHOTO".(2-nd and 3-rd images)

If you look closely, we see that the rows 0..3 are swapped with the rows 4..7; and rows 8..11 are swapped with rows 12..15.

I launch the program with the following parameters: sudo ./rpi-fb-matrix --led-rows=16 --led-multiplexing=4 matrix.cfg

Other values for "--led-multiplexing" do not give results, only spoil the picture and everything gets worse.

What it can be?

Sorry for my English. I think my English very bad. I hope you understand what I said. 32x16_rect_true real_photo 32x16_rect_false

hzeller commented 5 years ago

Please first start testing with the rpi-rgb-led-matrix project (this one) and play with the --led-multiplexing options and possibly --led-row-addr-type options to get the latest from there. Then try in the rpi-fb-matrix project (which is derived and uses this library, but since I haven't written it, I can't help you with that)