feat: 全量同步 254 个常用的 Arduino 扩展库文件

arduino-libs/arduino-cli/libraries/Adafruit_HTU21DF/Adafruit_HTU21DF.h

@@ -0,0 +1,50 @@
+/*!
+ * @file Adafruit_HTU21DF.h
+ */
+
+#ifndef _ADAFRUIT_HTU21DF_H
+#define _ADAFRUIT_HTU21DF_H
+
+#if (ARDUINO >= 100)
+#include "Arduino.h"
+#else
+#include "WProgram.h"
+#endif
+#include "Wire.h"
+
+/** Default I2C address for the HTU21D. */
+#define HTU21DF_I2CADDR (0x40)
+
+/** Read temperature register. */
+#define HTU21DF_READTEMP (0xE3)
+
+/** Read humidity register. */
+#define HTU21DF_READHUM (0xE5)
+
+/** Write register command. */
+#define HTU21DF_WRITEREG (0xE6)
+
+/** Read register command. */
+#define HTU21DF_READREG (0xE7)
+
+/** Reset command. */
+#define HTU21DF_RESET (0xFE)
+
+/**
+ * Driver for the Adafruit HTU21DF breakout board.
+ */
+class Adafruit_HTU21DF {
+public:
+  Adafruit_HTU21DF();
+
+  boolean begin(void);
+  float readTemperature(void);
+  float readHumidity(void);
+  void reset(void);
+
+private:
+  boolean readData(void);
+  float _last_humidity, _last_temp;
+};
+
+#endif /* _ADAFRUIT_HTU21DF_H */