mirror of
https://github.com/alexandrebobkov/ESP-Nodes.git
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74 lines
1.8 KiB
C++
74 lines
1.8 KiB
C++
/*
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By: Alexander Bobkov
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Date: April 20, 2025
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Description: This is an example of how to use the GxEPD library to display text and graphics on an ePaper display powered by the ESP32-C3 microcontroller.
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BUSY = GPIO3
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RST = GPIO2
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DC = GPIO1
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CS = GPIO7 (SS)
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CLK = GPIO4 (SCK)
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DIN = GPIO6 (MOSI)
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*/
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#include <Arduino.h>
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#include "ePaper.h"
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// put function declarations here:
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void loop();
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void setup();
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void setup() {
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// Blink on-board LED once upon initialization
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pinMode(8, OUTPUT);
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Serial.println("LED ON");
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digitalWrite(8, HIGH);
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delay(1000);
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Serial.println("LED OFF");
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digitalWrite(8, LOW);
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delay(1000);
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Serial.begin(115200);
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Serial.println("Running setup ...");
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// Initialize ePaper display
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display.init(115200);
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display.fillScreen(GxEPD_BLACK);
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display.update();
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display.fillScreen(GxEPD_WHITE);
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display.setTextColor(GxEPD_BLACK);
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display.setFont(&FreeMono9pt7b);
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//display.setCursor(205, 10);
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//display.print("ESP32_DisplayNode"); // Takes 195 pixels in width
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display.setCursor(5, 5);
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display.setFont(&TomThumb);
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display.print("10.100.50.105");
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display.update();
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// Add UI elements
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// Draw axis: (x1,y1) @ 5, 100 and width-2*margin_x height-2*margin_y
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display.drawRect(5, 155, display.width()-10, display.height()-160, GxEPD_RED);
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display.setFont(&TomThumb);
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for (int i = 0; i < display.width()-10; i+=50) {
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display.setCursor(i, display.height());
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display.print(i);
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}
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// Calibration lines
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/*display.drawLine(0, 100, display.width(), 100, GxEPD_BLACK);
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display.drawLine(0, 200, display.width(), 200, GxEPD_BLACK);
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display.drawLine(200, 0, 200, display.height(), GxEPD_BLACK);*/
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display.update();
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}
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void loop() {
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Serial.println("LED ON");
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digitalWrite(8, HIGH);
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delay(250);
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Serial.println("LED OFF");
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digitalWrite(8, LOW);
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delay(750);
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} |