初始化提交

arduino-cli/libraries/DFRobot_SHT20/DFRobot_SHT20.h

@@ -0,0 +1,52 @@
+#ifndef DFRobot_SHT20_h
+#define DFRobot_SHT20_h
+
+#if defined(ARDUINO) && ARDUINO >= 100
+ #include "Arduino.h"
+#else
+ #include "WProgram.h"
+#endif
+#include <Wire.h>
+
+#define ERROR_I2C_TIMEOUT                     998
+#define ERROR_BAD_CRC                         999
+#define SLAVE_ADDRESS                         0x40 
+#define TRIGGER_TEMP_MEASURE_HOLD             0xE3
+#define TRIGGER_HUMD_MEASURE_HOLD             0xE5
+#define TRIGGER_TEMP_MEASURE_NOHOLD           0xF3
+#define TRIGGER_HUMD_MEASURE_NOHOLD           0xF5
+#define WRITE_USER_REG                        0xE6
+#define READ_USER_REG                         0xE7
+#define SOFT_RESET                            0xFE
+#define USER_REGISTER_RESOLUTION_MASK         0x81
+#define USER_REGISTER_RESOLUTION_RH12_TEMP14  0x00
+#define USER_REGISTER_RESOLUTION_RH8_TEMP12   0x01
+#define USER_REGISTER_RESOLUTION_RH10_TEMP13  0x80
+#define USER_REGISTER_RESOLUTION_RH11_TEMP11  0x81
+#define USER_REGISTER_END_OF_BATTERY          0x40
+#define USER_REGISTER_HEATER_ENABLED          0x04
+#define USER_REGISTER_DISABLE_OTP_RELOAD      0x02
+#define MAX_WAIT                              100
+#define DELAY_INTERVAL                        10
+#define SHIFTED_DIVISOR                       0x988000
+#define MAX_COUNTER                           (MAX_WAIT/DELAY_INTERVAL)
+
+class DFRobot_SHT20 
+{
+public:
+    void     checkSHT20(void);
+    void     setResolution(byte resBits);
+    void     writeUserRegister(byte val);
+    void     initSHT20(TwoWire &wirePort = Wire);
+    void     showReslut(const char *prefix, int val);
+    float    readHumidity(void);
+    float    readTemperature(void);
+    byte     readUserRegister(void);
+
+private:
+    TwoWire *i2cPort;
+    byte     checkCRC(uint16_t message_from_sensor, uint8_t check_value_from_sensor);
+    uint16_t readValue(byte cmd);
+};
+
+#endif