.

ESP32-C3_ePaper/platformio.ini

@@ -13,5 +13,4 @@ platform = espressif32
 board = esp32-c3-devkitc-02
 framework = arduino
 lib_deps = 
-	bodmer/TFT_eSPI@^2.5.43
 	zinggjm/GxEPD2@^1.5.9

ESP32-C3_ePaper/src/main.cpp

@@ -1,76 +1,53 @@
-// GxEPD2_HelloWorld.ino by Jean-Marc Zingg
-//
-// Display Library example for SPI e-paper panels from Dalian Good Display and boards from Waveshare.
-// Requires HW SPI and Adafruit_GFX. Caution: the e-paper panels require 3.3V supply AND data lines!
-//
-// Display Library based on Demo Example from Good Display: https://www.good-display.com/companyfile/32/
-//
-// Author: Jean-Marc Zingg
-//
-// Version: see library.properties
-//
-// Library: https://github.com/ZinggJM/GxEPD2
+#include <Arduino.h>
+#include "ePaper.h"
 
-// Supporting Arduino Forum Topics (closed, read only):
-// Good Display ePaper for Arduino: https://forum.arduino.cc/t/good-display-epaper-for-arduino/419657
-// Waveshare e-paper displays with SPI: https://forum.arduino.cc/t/waveshare-e-paper-displays-with-spi/467865
-//
-// Add new topics in https://forum.arduino.cc/c/using-arduino/displays/23 for new questions and issues
+// put function declarations here:
+void loop();
+void setup();
 
-// see GxEPD2_wiring_examples.h for wiring suggestions and examples
-// if you use a different wiring, you need to adapt the constructor parameters!
+void setup() {
 
-// uncomment next line to use class GFX of library GFX_Root instead of Adafruit_GFX
-//#include <GFX.h>
+  pinMode(12, OUTPUT);
+  
+  Serial.begin(115200);
+  Serial.println("Running setup ...");
 
-#include <GxEPD2_BW.h>
-#include <GxEPD2_3C.h>
-#include <GxEPD2_4C.h>
-#include <GxEPD2_7C.h>
-#include <Fonts/FreeMonoBold9pt7b.h>
-
-// select the display class and display driver class in the following file (new style):
-#include "GxEPD2_display_selection_new_style.h"
-
-// or select the display constructor line in one of the following files (old style):
-#include "GxEPD2_display_selection.h"
-#include "GxEPD2_display_selection_added.h"
-
-// alternately you can copy the constructor from GxEPD2_display_selection.h or GxEPD2_display_selection_added.h to here
-// e.g. for Wemos D1 mini:
-//GxEPD2_BW<GxEPD2_154_D67, GxEPD2_154_D67::HEIGHT> display(GxEPD2_154_D67(/*CS=D8*/ SS, /*DC=D3*/ 0, /*RST=D4*/ 2, /*BUSY=D2*/ 4)); // GDEH0154D67
-
-// for handling alternative SPI pins (ESP32, RP2040) see example GxEPD2_Example.ino
-
-void setup()
-{
-  //display.init(115200); // default 10ms reset pulse, e.g. for bare panels with DESPI-C02
-  display.init(115200, true, 2, false); // USE THIS for Waveshare boards with "clever" reset circuit, 2ms reset pulse
-  helloWorld();
-  display.hibernate();
-}
-
-const char HelloWorld[] = "Hello World!";
-
-void helloWorld()
-{
-  display.setRotation(1);
-  display.setFont(&FreeMonoBold9pt7b);
+  // Initialize ePaper display
+  display.init(115200);
+  display.fillScreen(GxEPD_BLACK);
+  display.update();
+  display.fillScreen(GxEPD_WHITE);
   display.setTextColor(GxEPD_BLACK);
-  int16_t tbx, tby; uint16_t tbw, tbh;
-  display.getTextBounds(HelloWorld, 0, 0, &tbx, &tby, &tbw, &tbh);
-  // center the bounding box by transposition of the origin:
-  uint16_t x = ((display.width() - tbw) / 2) - tbx;
-  uint16_t y = ((display.height() - tbh) / 2) - tby;
-  display.setFullWindow();
-  display.firstPage();
-  do
-  {
-    display.fillScreen(GxEPD_WHITE);
-    display.setCursor(x, y);
-    display.print(HelloWorld);
+  display.setFont(&FreeMono9pt7b);
+  //display.setCursor(205, 10);
+  //display.print("ESP32_DisplayNode"); // Takes 195 pixels in width
+
+  display.setCursor(5, 5);
+  display.setFont(&TomThumb);
+  display.print("10.100.50.105");
+  display.update();
+  // Add UI elements
+  // Draw axis: (x1,y1) @ 5, 100 and width-2*margin_x height-2*margin_y
+  display.drawRect(5, 155, display.width()-10, display.height()-160, GxEPD_RED);
+  display.setFont(&TomThumb);
+  for (int i = 0; i < display.width()-10; i+=50) {
+    display.setCursor(i, display.height());
+    display.print(i);
   }
-  while (display.nextPage());
+
+  // Calibration lines
+  /*display.drawLine(0, 100, display.width(), 100, GxEPD_BLACK);
+  display.drawLine(0, 200, display.width(), 200, GxEPD_BLACK);
+  display.drawLine(200, 0, 200, display.height(), GxEPD_BLACK);*/
+
+  display.update();
 }
 
-void loop() {};
+void loop() {
+  Serial.println("LED ON");
+  digitalWrite(12, HIGH);
+  delay(750);
+  Serial.println("LED OFF");
+  digitalWrite(12, LOW);
+  delay(750);
+}