Add SDP3x sensor (#2064)

Co-authored-by: Jesse Hills <3060199+jesserockz@users.noreply.github.com>
Co-authored-by: Otto Winter <otto@otto-winter.com>

esphome/components/sdp3x/sdp3x.h

@@ -0,0 +1,30 @@
+#pragma once
+
+#include "esphome/core/component.h"
+#include "esphome/components/sensor/sensor.h"
+#include "esphome/components/i2c/i2c.h"
+
+namespace esphome {
+namespace sdp3x {
+
+class SDP3XComponent : public PollingComponent, public i2c::I2CDevice, public sensor::Sensor {
+ public:
+  /// Schedule temperature+pressure readings.
+  void update() override;
+  /// Setup the sensor and test for a connection.
+  void setup() override;
+  void dump_config() override;
+
+  float get_setup_priority() const override;
+
+ protected:
+  /// Internal method to read the pressure from the component after it has been scheduled.
+  void read_pressure_();
+
+  bool check_crc_(const uint8_t data[], uint8_t size, uint8_t checksum);
+
+  float pressure_scale_factor_ = 0.0f;  // hPa per count
+};
+
+}  // namespace sdp3x
+}  // namespace esphome