Added libraries for SPI flash, BMP180 and Si7021

2015-02-05 19:10:52 +01:00
parent 08221e6567
commit e462bc214c
16 changed files with 2028 additions and 0 deletions
@@ -0,0 +1,51 @@
+/*
+  Copyright 2014 Marcus Sorensen <marcus@electron14.com>
+
+This program is licensed under the GNU GPL v2
+*/
+#ifndef si7021_h
+#define si7021_h
+
+#if (ARDUINO >= 100)
+ #include "Arduino.h"
+#else
+ #include "WProgram.h"
+#endif
+
+#ifdef __AVR_ATtiny85__
+ #include "TinyWireM.h"
+ #define Wire TinyWireM
+#else
+ #include <avr/pgmspace.h>
+ #include <Wire.h>
+#endif
+
+typedef struct si7021_env {
+    int celsiusHundredths;
+    int fahrenheitHundredths;
+    unsigned int humidityBasisPoints;
+} si7021_env;
+
+class SI7021
+{
+  public:
+    SI7021();
+    bool begin();
+    bool sensorExists();
+    int getFahrenheitHundredths();
+    int getCelsiusHundredths();
+    unsigned int getHumidityPercent();
+    unsigned int getHumidityBasisPoints();
+    struct si7021_env getHumidityAndTemperature();
+    int getSerialBytes(byte * buf);
+    int getDeviceId();
+    void setHeater(bool on);
+  private:
+    void _command(byte * cmd, byte * buf );
+    void _writeReg(byte * reg, int reglen);
+    int _readReg(byte * reg, int reglen);
+    int _getCelsiusPostHumidity();
+};
+
+#endif
+