Created DHT22.h and DHT22.cpp driver files for Temp/RH sensor

libs/sensors/include/DHT22.h

@@ -0,0 +1,32 @@
+#pragma once
+
+#include "Sensor.h"
+#include "mbed.h"
+
+namespace Sensor {
+class DHT22 final : public Sensor {
+ public:
+  DHT22(PinName data);
+
+  // Returns internal humidity value (and temperature? Since all transmitted at the same time...)
+  float read() override;
+
+  // Returns internal temperature reading *Probably irrelevant?
+  float alternateRead() override;
+
+  // Returns whether sensor responds to request?
+  bool getStatus() const override;
+
+  // irrelevant probably
+  [[nodiscard]] bool reset() override;
+
+  // Requests relative humidity and temperature data from sensor
+  [[nodiscard]] bool update() override;
+
+ private:
+  mutable DigitalInOut m_data;
+  bool updateData();
+
+  float m_humidity, m_temperature;
+};
+}  // namespace Sensor

libs/sensors/src/DHT22.cpp

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+#include "DHT22.h"
+
+using namespace Sensor;
+
+DHT22::DHT22(PinName data) : m_data(data) {}
+
+// Returns internal humidity value (and temperature? Since all transmitted at the same time...)
+float DHT22::read() {
+  // Not sure what the mutex is used for, maybe ask later?
+  return m_humidity;
+}
+
+float DHT22::alternateRead() {
+  return m_temperature;
+}
+
+// bool DHT22::getStatus() {}
+
+// bool DHT22::reset() {}
+
+bool DHT22::update() {
+  // need to probably use the DigitalInOut type for getting the data from the sensor
+  // Setup a 2 second loop of sorts? or 80 microseconds? Refer to Arduino code
+  // Needs to check if 2 seconds have been passed already since last call
+}