Add a clear() method to the LED matrix library #280
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per1234
added
type: enhancement
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Hi @alranel ☕ 👋
How do you expect this API being used? If I see a clear API in this context I expect the RGB LED matrix to be wiped clean the moment I call it. However, that does not work. I.e. in the following example sketch both 1 and 2 are persistently displayed:
#include "ArduinoGraphics.h"
#include "Arduino_LED_Matrix.h"
ArduinoLEDMatrix matrix;
void setup() {
matrix.begin();
}
void loop() {
matrix.beginDraw();
matrix.clear();
const char text_1[] = "1";
matrix.textFont(Font_4x6);
matrix.beginText(0, 1, 0xFFFFFF);
matrix.println(text_1);
matrix.endText();
matrix.endDraw();
delay(1000);
matrix.beginDraw();
matrix.clear();
const char text_2[] = "2";
matrix.textFont(Font_4x6);
matrix.beginText(8, 1, 0xFFFFFF);
matrix.println(text_2);
matrix.endText();
matrix.endDraw();
delay(1000);
}
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Hi @aentinger! |
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I added an example to the PR to show the intended usage. I also just tested it and it works. To add some context: this is what I saw quite a few users doing manually all the time when they need to wipe the matrix. :) |
This method makes it easy to turn off the matrix.