planar-EL512.256-H/src/main.cpp

// Test sketch: bring up the EL512.256-H and draw a test pattern with Adafruit GFX.
#include <Arduino.h>
#include <EL512.h>

#include "pins.h"

static EL512Panel panel({
    el512pins::VCLK,
    el512pins::VID,
    el512pins::TVID,
    el512pins::HS,
    el512pins::VS,
    el512pins::ENABLE,
    el512pins::LOWPWR_N,
});
static EL512_GFX display(panel);

static void drawTestPattern() {
  display.fillScreen(0);
  display.drawRect(0, 0, display.width(), display.height(), 1);
  display.drawLine(0, 0, display.width() - 1, display.height() - 1, 1);
  display.drawLine(display.width() - 1, 0, 0, display.height() - 1, 1);

  // Checkerboard strip to check VID/TVID column ordering.
  for (int16_t y = 8; y < 24; y++)
    for (int16_t x = 8; x < 136; x++)
      if ((x ^ y) & 1) display.drawPixel(x, y, 1);

  display.fillCircle(display.width() / 2, display.height() / 2, 40, 1);
  display.setTextColor(1);
  display.setTextSize(2);
  display.setCursor(8, 32);
  display.print("EL512.256-H");
  display.setTextSize(1);
  display.setCursor(8, 56);
  display.printf("%ux%u  %.1f Hz", EL512Panel::WIDTH, EL512Panel::HEIGHT,
                 EL512Panel::refreshHz());
  display.display();
}

void setup() {
  Serial.begin(115200);
  Serial.println("EL512.256-H test");

  if (!display.begin()) {
    Serial.println("panel init failed (out of DMA memory?)");
    while (true) delay(1000);
  }
  drawTestPattern();
  Serial.printf("free heap: %u\n", ESP.getFreeHeap());
}

void loop() {
  static uint32_t last = 0;
  static uint32_t seconds = 0;
  if (millis() - last >= 1000) {
    last = millis();
    display.fillRect(8, 72, 120, 8, 0);
    display.setCursor(8, 72);
    display.printf("uptime %lus", (unsigned long)seconds++);
    display.display();
  }
}