Complete rewrite of the library with modular structure.

src/AirGradient.cpp

@@ -0,0 +1,38 @@
+#include "AirGradient.h"
+
+#define AG_LIB_VER "3.0.0"
+
+AirGradient::AirGradient(BoardType type)
+    : pms5003(type), pms5003t_1(type), pms5003t_2(type), s8(type), sht(type), sgp41(type),
+      display(type), boardType(type), button(type), statusLed(type),
+      ledBar(type), watchdog(type) {}
+
+/**
+ * @brief Get pin number for I2C SDA
+ *
+ * @return int -1 if invalid
+ */
+int AirGradient::getI2cSdaPin(void) {
+  const BoardDef *bsp = getBoardDef(this->boardType);
+  if ((bsp == nullptr) || (bsp->I2C.supported == false)) {
+    return -1;
+  }
+  return bsp->I2C.sda_pin;
+}
+
+/**
+ * @brief Get pin number for I2C SCL
+ *
+ * @return int -1 if invalid
+ */
+int AirGradient::getI2cSclPin(void) {
+  const BoardDef *bsp = getBoardDef(this->boardType);
+  if ((bsp == nullptr) || (bsp->I2C.supported == false)) {
+    return -1;
+  }
+  return bsp->I2C.scl_pin;
+}
+
+String AirGradient::getVersion(void) { return AG_LIB_VER; }
+
+BoardType AirGradient::getBoardType(void) { return boardType; }