v2.9

lib/Adafruit MLX90614 Library/Adafruit_MLX90614.h

@@ -0,0 +1,68 @@
+/***************************************************
+  This is a library for the MLX90614 Temp Sensor
+
+  Designed specifically to work with the MLX90614 sensors in the
+  adafruit shop
+  ----> https://www.adafruit.com/products/1747 (3V)
+  ----> https://www.adafruit.com/products/1748 (5V)
+
+  These sensors use I2C to communicate, 2 pins are required to
+  interface
+  Adafruit invests time and resources providing this open source code,
+  please support Adafruit and open-source hardware by purchasing
+  products from Adafruit!
+
+  Written by Limor Fried/Ladyada for Adafruit in any redistribution
+ ****************************************************/
+
+#include <Adafruit_I2CDevice.h>
+#include <Arduino.h>
+
+#define MLX90614_I2CADDR 0x5A
+
+// RAM
+#define MLX90614_RAWIR1 0x04
+#define MLX90614_RAWIR2 0x05
+#define MLX90614_TA 0x06
+#define MLX90614_TOBJ1 0x07
+#define MLX90614_TOBJ2 0x08
+// EEPROM
+#define MLX90614_TOMAX 0x20
+#define MLX90614_TOMIN 0x21
+#define MLX90614_PWMCTRL 0x22
+#define MLX90614_TARANGE 0x23
+#define MLX90614_EMISS 0x24
+#define MLX90614_CONFIG 0x25
+#define MLX90614_ADDR 0x2E
+#define MLX90614_ID1 0x3C
+#define MLX90614_ID2 0x3D
+#define MLX90614_ID3 0x3E
+#define MLX90614_ID4 0x3F
+
+/**
+ * @brief Class to read from and control a MLX90614 Temp Sensor
+ *
+ */
+class Adafruit_MLX90614 {
+public:
+  ~Adafruit_MLX90614();
+  bool begin(uint8_t addr = MLX90614_I2CADDR, TwoWire *wire = &Wire);
+
+  double readObjectTempC(void);
+  double readAmbientTempC(void);
+  double readObjectTempF(void);
+  double readAmbientTempF(void);
+  uint16_t readEmissivityReg(void);
+  void writeEmissivityReg(uint16_t ereg);
+  double readEmissivity(void);
+  void writeEmissivity(double emissivity);
+
+private:
+  Adafruit_I2CDevice *i2c_dev = NULL; ///< Pointer to I2C bus interface
+  float readTemp(uint8_t reg);
+
+  uint16_t read16(uint8_t addr);
+  void write16(uint8_t addr, uint16_t data);
+  byte crc8(byte *addr, byte len);
+  uint8_t _addr;
+};