Display resetting when using setFont about esp32-hub75-matrixpanel-dma

[csloz]

Matrix.begin needs to be set first to initialize the library. eg RGB64x32MatrixPanel_I2S_DMA matrix; ... void setup(){ // If you experience ghosting, you will need to reduce the brightness level, not all RGB Matrix // Panels are the same - some seem to display ghosting artefacts at lower brightness levels. // In the setup() function do something like: matrix.begin(R1, G1, BL1, R2, G2, BL2, CH_A, CH_B, CH_C, CH_D, CH_E, LAT, OE, CLK); // setup the LED matrix matrix.setFont(&FreeSans9pt7b); // This command causes a reset matrix.setPanelBrightness(10); // SETS THE BRIGHTNESS HERE. 60 OR LOWER IDEAL. matrix.setTextColor(matrix.color444(255, 255, 255)); // r,g,b matrix.setCursor(6, 7); matrix.print("Leeds 4"); matrix.setTextColor(matrix.color444(255, 0, 0)); // r,g,b matrix.setCursor(6, 17); matrix.print("Man Utd 0"); }

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On 14 Aug 2020, at 10:37, Mike ***@***.***> wrote: If I comment out line 43 my project runs... when left as is - the display resets when the print function is called. What am I missing? Any help very much appreciated // Test the RGB64x32MatrixPanel_I2S_DMA setFont Function #include <Arduino.h> #include <ESP32-RGB64x32MatrixPanel-I2S-DMA.h> #include <Fonts/FreeSans9pt7b.h> RGB64x32MatrixPanel_I2S_DMA matrix; //////////////////////////////////////////////////////////////////// // Font Test // // // pinout for ESP32 38pin module // // R1 | G1 // B1 | GND // R2 | G2 // B2 | E // A | B // C | D // CLK| LAT // OE | GND #define R1 25 #define G1 27 #define BL1 26 #define R2 14 // 21 SDA #define G2 13 // 22 SDL #define BL2 12 #define CH_A 23 #define CH_B 19 #define CH_C 5 #define CH_D 17 #define CH_E -1 // assign to pin if using two panels #define CLK 16 #define LAT 4 #define OE 15 void setup(){ matrix.setFont(&FreeSans9pt7b); // This command causes a reset // If you experience ghosting, you will need to reduce the brightness level, not all RGB Matrix // Panels are the same - some seem to display ghosting artefacts at lower brightness levels. // In the setup() function do something like: matrix.setPanelBrightness(10); // SETS THE BRIGHTNESS HERE. 60 OR LOWER IDEAL. matrix.begin(R1, G1, BL1, R2, G2, BL2, CH_A, CH_B, CH_C, CH_D, CH_E, LAT, OE, CLK); // setup the LED matrix matrix.setTextColor(matrix.color444(255, 255, 255)); // r,g,b matrix.setCursor(6, 7); matrix.print("Leeds 4"); matrix.setTextColor(matrix.color444(255, 0, 0)); // r,g,b matrix.setCursor(6, 17); matrix.print("Man Utd 0"); } void loop() { } — You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub <#28>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AAY5G4SEIAY2DYFBC7N6RKLSATZVJANCNFSM4P7IUOLA>.

[mrcodetastic]

Thanks csloz.

@madnat - I've updated the README now to highlight this.

[madnat]

Thanks! Regrettably the code still aborts with this change :(

Again - if I comment out "matrix.setFont(&FreeSans9pt7b); // This command causes a reset" the code runs with default font (6x8)

// Test the RGB64x32MatrixPanel_I2S_DMA setFont Function

#include <Arduino.h>
#include <ESP32-RGB64x32MatrixPanel-I2S-DMA.h>
#include <Fonts/FreeSans9pt7b.h>

RGB64x32MatrixPanel_I2S_DMA matrix;

////////////////////////////////////////////////////////////////////
// Font Test
//
//
// pinout for ESP38 38pin module
// http://arduinoinfo.mywikis.net/wiki/Esp32#KS0413_keyestudio_ESP32_Core_Board
//

// R1 | G1
// B1 | GND
// R2 | G2
// B2 | E
// A | B
// C | D
// CLK| LAT
// OE | GND

#define R1 25
#define G1 27
#define BL1 26
#define R2 14 // 21 SDA
#define G2 13 // 22 SDL
#define BL2 12
#define CH_A 23
#define CH_B 19
#define CH_C 5
#define CH_D 17
#define CH_E -1 // assign to pin if using two panels
#define CLK 16
#define LAT 4
#define OE 15

void setup(){

matrix.begin(R1, G1, BL1, R2, G2, BL2, CH_A, CH_B, CH_C, CH_D, CH_E, LAT, OE, CLK); // setup the LED matrix

matrix.setFont(&FreeSans9pt7b);

matrix.setPanelBrightness(50); // SETS THE BRIGHTNESS HERE. 60 OR LOWER IDEAL.
matrix.setTextColor(matrix.color444(255, 255, 255)); // r,g,b
matrix.setCursor(6, 7);
matrix.print("Leeds 4");
matrix.setTextColor(matrix.color444(255, 0, 0)); // r,g,b
matrix.setCursor(6, 17);
matrix.print("Man Utd 0");

}

void loop()
{

}

[mrcodetastic]

Apologies. I broke something in the most recent release. Let me debug and report back with fix.

[mrcodetastic]

Try again with the latest release 1.2.2 - download from github and try again. THanks

[madnat]

That now works - thanks very much!

[mrcodetastic]

Excellent. Closing this issue.