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## Chained Panels example - Chaining individual LED matrix panels to make a larger panel ## ## Chained Panels example - Chaining individual LED matrix panels to make a larger panel ##
This is the PatternPlasma Demo adopted for use with multiple This is the PatternPlasma Demo adopted for use with multiple
displays arranged in a non standard order displays arranged in a non standard order
### What is a non standard order? ### ### What is a non standard order? ###
When you connect multiple panels together, the library treats the When you connect multiple panels together, the library treats the
multiple panels as one big panel arranged horizontally. Arranging multiple panels as one big panel arranged horizontally. Arranging
the displays like this would be a standard order. the displays like this would be a standard order.
[ 4 ][ 3 ][ 2 ][ 1 ] (ESP32 is connected to 1) [ 4 ][ 3 ][ 2 ][ 1 ] (ESP32 is connected to 1)
If you wanted to arrange the displays vertically, or in rows and If you wanted to arrange the displays vertically, or in rows and
columns this example might be able to help. columns this example might be able to help.
[ 4 ][ 3 ] [ 4 ][ 3 ]
[ 2 ][ 1 ] [ 2 ][ 1 ]
It creates a virtual screen that you draw to in the same way you would It creates a virtual screen that you draw to in the same way you would
the matrix, but it will look after mapping it back to the displays. the matrix, but it will look after mapping it back to the displays.
### Steps to Use ### ### Steps to Use ###
1) In ESP32-RGB64x32MatrixPanel-I2S-DMA.h: 1) In ESP32-RGB64x32MatrixPanel-I2S-DMA.h:
- Set the MATRIX_HEIGHT to be the y resolution of the physical chained panels in a line (if the panels are 32 x 16, set it to be 16) - Set the MATRIX_HEIGHT to be the y resolution of the physical chained panels in a line (if the panels are 32 x 16, set it to be 16)
- Set the MATRIX_WIDTH to be the sum of the x resolution of all the physical chained panels (i.e. If you have 4 x (32px w x 16px h) panels, 32x4 = 128) - Set the MATRIX_WIDTH to be the sum of the x resolution of all the physical chained panels (i.e. If you have 4 x (32px w x 16px h) panels, 32x4 = 128)
2) In the sketch: 2) In the sketch:
- Set values for NUM_ROWS, NUM_COLS, PANEL_RES_X, PANEL_RES_Y. There are comments beside them - Set values for NUM_ROWS, NUM_COLS, PANEL_RES_X, PANEL_RES_Y. There are comments beside them
explaining what they are in more detail. explaining what they are in more detail.
- Other than where the matrix is defined and matrix.begin in the setup, you should now be using the virtual display - Other than where the matrix is defined and matrix.begin in the setup, you should now be using the virtual display
for everything (drawing pixels, writing text etc). You can do a find and replace of all calls if it's an existing sketch for everything (drawing pixels, writing text etc). You can do a find and replace of all calls if it's an existing sketch
(just make sure you don't replace the definition and the matrix.begin) (just make sure you don't replace the definition and the matrix.begin)
- If the sketch makes use of MATRIX_HEIGHT or MATRIX_WIDTH, these will need to be replaced with the width and height - If the sketch makes use of MATRIX_HEIGHT or MATRIX_WIDTH, these will need to be replaced with the width and height
of your virtual screen. Either make new defines and use that, or you can use virtualDisp.width() or .height() of your virtual screen. Either make new defines and use that, or you can use virtualDisp.width() or .height()
#### Contributor #### #### Contributor ####
Written by Brian Lough Written by Brian Lough
YouTube: https://www.youtube.com/brianlough YouTube: https://www.youtube.com/brianlough
Tindie: https://www.tindie.com/stores/brianlough/ Tindie: https://www.tindie.com/stores/brianlough/
Twitter: https://twitter.com/witnessmenow Twitter: https://twitter.com/witnessmenow
Parts: Parts:
ESP32 D1 Mini * - https://s.click.aliexpress.com/e/_dSi824B ESP32 D1 Mini * - https://s.click.aliexpress.com/e/_dSi824B
ESP32 I2S Matrix Shield (From my Tindie) = https://www.tindie.com/products/brianlough/esp32-i2s-matrix-shield/ ESP32 I2S Matrix Shield (From my Tindie) = https://www.tindie.com/products/brianlough/esp32-i2s-matrix-shield/
* * = Affilate * * = Affilate
If you find what I do useful and would like to support me, If you find what I do useful and would like to support me,
please consider becoming a sponsor on Github please consider becoming a sponsor on Github
https://github.com/sponsors/witnessmenow/ https://github.com/sponsors/witnessmenow/