129 lines
2.8 KiB
C++
129 lines
2.8 KiB
C++
/*
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Font draw speed and flicker test, draws all numbers 0-999 in each font
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(0-99 in font 8)
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Average time in milliseconds to draw a character is shown in red
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A total of 2890 characters are drawn in each font (190 in font 8)
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Needs fonts 2, 4, 6, 7 and 8
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Make sure all the display driver and pin comnenctions are correct by
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editting the User_Setup.h file in the TFT_eSPI library folder.
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Note that yield() or delay(0) must be called in long duration for/while
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loops to stop the ESP8266 watchdog triggering.
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#########################################################################
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###### DON'T FORGET TO UPDATE THE User_Setup.h FILE IN THE LIBRARY ######
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#########################################################################
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*/
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#include <TFT_eSPI.h> // Graphics and font library for ILI9341 driver chip
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#include <SPI.h>
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TFT_eSPI tft = TFT_eSPI(); // Invoke library, pins defined in User_Setup.h
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unsigned long drawTime = 0;
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void setup(void) {
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tft.init();
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tft.setRotation(1);
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}
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void loop() {
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tft.fillScreen(TFT_BLACK);
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tft.setTextColor(TFT_WHITE, TFT_BLACK);
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drawTime = millis();
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for (int i = 0; i < 1000; i++) {
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tft.drawNumber(i, 0, 0, 1);
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}
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drawTime = millis() - drawTime;
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tft.setTextColor(TFT_RED, TFT_BLACK);
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tft.drawFloat(drawTime / 2890.0, 3, 0, 80, 4);
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delay(4000);
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tft.fillScreen(TFT_BLACK);
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tft.setTextColor(TFT_WHITE, TFT_BLACK);
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drawTime = millis();
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for (int i = 0; i < 1000; i++) {
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tft.drawNumber(i, 0, 0, 2);
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}
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drawTime = millis() - drawTime;
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tft.setTextColor(TFT_RED, TFT_BLACK);
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tft.drawFloat(drawTime / 2890.0, 3, 0, 80, 4);
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delay(4000);
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tft.fillScreen(TFT_BLACK);
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tft.setTextColor(TFT_WHITE, TFT_BLACK);
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drawTime = millis();
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for (int i = 0; i < 1000; i++) {
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tft.drawNumber(i, 0, 0, 4);
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}
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drawTime = millis() - drawTime;
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tft.setTextColor(TFT_RED, TFT_BLACK);
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tft.drawFloat(drawTime / 2890.0, 3, 0, 80, 4);
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delay(4000);
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tft.fillScreen(TFT_BLACK);
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tft.setTextColor(TFT_WHITE, TFT_BLACK);
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drawTime = millis();
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for (int i = 0; i < 1000; i++) {
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yield(); tft.drawNumber(i, 0, 0, 6);
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}
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drawTime = millis() - drawTime;
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tft.setTextColor(TFT_RED, TFT_BLACK);
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tft.drawFloat(drawTime / 2890.0, 3, 0, 80, 4);
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delay(4000);
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tft.fillScreen(TFT_BLACK);
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tft.setTextColor(TFT_WHITE, TFT_BLACK);
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drawTime = millis();
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for (int i = 0; i < 1000; i++) {
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yield(); tft.drawNumber(i, 0, 0, 7);
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}
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drawTime = millis() - drawTime;
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tft.setTextColor(TFT_RED, TFT_BLACK);
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tft.drawFloat(drawTime / 2890.0, 3, 0, 80, 4);
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delay(4000);
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tft.fillScreen(TFT_BLACK);
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tft.setTextColor(TFT_WHITE, TFT_BLACK);
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drawTime = millis();
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for (int i = 0; i < 100; i++) {
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yield(); tft.drawNumber(i, 0, 0, 8);
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}
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drawTime = millis() - drawTime;
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tft.setTextColor(TFT_RED, TFT_BLACK);
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tft.drawFloat(drawTime / 190.0, 3, 0, 80, 4);
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delay(4000);
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}
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