break code into logical components

1 files changed, 63 insertions, 0 deletions

diff --git a/display.h b/display.h
new file mode 100644
index 0000000..fdab3f3
--- /dev/null
+++ b/display.h
@@ -0,0 +1,63 @@
+#pragma once
+
+#define LILYGO_T5_V213 // needed for the display libraries
+
+#include <boards.h>
+#include <GxEPD.h>
+#include <GxGDEH0213B73/GxGDEH0213B73.h>  // screen model, probably correct
+#include <Fonts/FreeMonoBold9pt7b.h>
+#include <GxIO/GxIO_SPI/GxIO_SPI.h>
+#include <GxIO/GxIO.h>
+
+#include "data.h"
+
+class Display {
+private:
+  GxIO_Class io;
+  GxEPD_Class display;
+
+public:
+  Display() :
+    io(SPI, EPD_CS, EPD_DC, EPD_RSET),
+    display(io, EPD_RSET, EPD_BUSY)
+  {}
+
+  void start() {
+    SPI.begin(EPD_SCLK, EPD_MISO, EPD_MOSI);
+
+    display.init();
+    display.setTextColor(GxEPD_BLACK);
+    display.setRotation(3);
+    display.setFont(&FreeMonoBold9pt7b);
+  }
+
+  void show(const SensorData *data) {
+    display.fillScreen(GxEPD_WHITE);
+
+    display.setCursor(0,20);
+    display.print("Co2 ");
+    display.print(data->co2);
+
+    display.setCursor(100,20);
+    display.print("t");
+    display.print(data->temperature,1);
+
+    display.setCursor(150,20);
+    display.print(" h");
+    display.print(data->humidity,0);
+    display.print("%");
+
+    display.setCursor(0,45);
+    display.println("   PM");
+    display.print(" 1.0 "); display.println(data->pm.mc_1p0,1);
+    display.print(" 2.5 "); display.println(data->pm.mc_2p5,1);
+    display.print(" 4.0 "); display.println(data->pm.mc_4p0,1);
+    display.print("10.0 "); display.println(data->pm.mc_10p0,1);
+
+    display.setCursor(100,45);
+    display.print("Batt "); display.print(data->batteryVoltage);
+
+    // "partial" update
+    display.updateWindow(0, 0, GxEPD_WIDTH, GxEPD_HEIGHT, false);
+  }
+};