update wemos32matrix.h
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#define LED_MATRIX_HEIGHT 16 // Height in pixels (LEDs ) of your display
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// Pin numbers work fine for Wemos Lolin32 board (all used pins are on 1 side of the board)
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// Explanation of pin signals see https://learn.adafruit.com/32x16-32x32-rgb-led-matrix/new-wiring
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#define MATRIX_DISPLAY_SCAN_US 500 // Matrix display scan rate in microseconds (1ms is about 'acceptable')
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#define LED_MATRIX_LATCHPIN 13 // Connects to LAT pin on display (Latch)
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#define LED_MATRIX_CLOCKPIN 32 // Connects to CLK pin on display (Clock)
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#define LED_MATRIX_EN_74138 12 // Connects to EN pin on display (Output Enable)
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#define LED_MATRIX_LA_74138 14 // Connects to LA pin on display
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#define LED_MATRIX_LB_74138 27 // Connects to LB pin on display
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#define LED_MATRIX_LC_74138 25 // Connects to LC pin on display
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#define LED_MATRIX_LD_74138 26 // Connects to LD pin on display
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#define LED_MATRIX_DATA_R1 33 // Connects to R1 pin on display
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#define LED_MATRIX_LATCHPIN 13 // LAT (or STB = Strobe)
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#define LED_MATRIX_CLOCKPIN 32 // CLK
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#define LED_MATRIX_EN_74138 12 // EN (or OE)
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#define LED_MATRIX_LA_74138 14 // LA (or A)
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#define LED_MATRIX_LB_74138 27 // LB (or B)
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#define LED_MATRIX_LC_74138 25 // LC (or C)
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#define LED_MATRIX_LD_74138 26 // LD (or D)
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#define LED_MATRIX_DATA_R1 33 // R1 (or R0)
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// CLK: The clock signal moves data bits from pin R1 ("red") in the shift registers
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// LAT: The latch signal enables LEDs according to shift register contents
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// Line Selects: LA, LB, LC, LD select which two rows of the display are currently lit
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// OE: Output enable switches the LEDs on/off while transitioning from one row to the next
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#define DISABLE_BROWNOUT 1 // comment out if you want to keep brownout feature
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