Revision 0:2dee66cf94c2, committed 2017-09-11

Comitter:

i_am_kitsune

Date:

Mon Sep 11 02:06:47 2017 +0000

Child:

1:383429056bd4

Commit message:

20170911

Changed in this revision

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/HDC1000.cpp	Mon Sep 11 02:06:47 2017 +0000
@@ -0,0 +1,138 @@
+/*
+ *  mbed library program
+ *  Low Power, High Accuracy Digital Humidity Sensor with Integrated Temperature Sensor
+ *  HDC1000 Texas Instruments
+ *
+ * Copyright (c) 2015,'17 Kenji Arai / JH1PJL
+ *  http://www.page.sannet.ne.jp/kenjia/index.html
+ *  http://mbed.org/users/kenjiArai/
+ *      Created: Feburary   9th, 2015
+ *      Revised: AAugust   21st, 2017
+ */
+
+#include "HDC1000.h"
+
+HDC1000::HDC1000 (PinName p_sda, PinName p_scl) :
+ _i2c_p(new I2C(p_sda, p_scl)), _i2c(*_i2c_p)
+{
+    HDC1000_addr = HDC1000ADDR;
+    init();
+}
+
+HDC1000::HDC1000 (PinName p_sda, PinName p_scl, uint8_t addr) :
+ _i2c_p(new I2C(p_sda, p_scl)), _i2c(*_i2c_p)
+{
+    HDC1000_addr = addr;
+    init();
+}
+
+HDC1000::HDC1000 (I2C& p_i2c) : _i2c(p_i2c)
+{
+    HDC1000_addr = HDC1000ADDR;
+    init();
+}
+
+HDC1000::HDC1000 (I2C& p_i2c, uint8_t addr) : _i2c(p_i2c)
+{
+    HDC1000_addr = addr;
+    init();
+}
+
+/////////////// Start conv. and gwt all data //////////////
+void HDC1000::get()
+{
+
+    dt[0] = HDC1000_REG_TEMP;
+    _i2c.write((int)HDC1000_addr, (char *)dt, 1, true);
+    wait_ms(15);
+    _i2c.read((int)HDC1000_addr, (char *)dt, 4, false);
+    temp = dt[0] << 8 | dt[1];
+    humi = dt[2] << 8 | dt[3];
+}
+
+/////////////// Read data from sensor /////////////////////
+float HDC1000::temperature()
+{
+    return (float)temp * 165 / 65536 - 40;
+}
+
+float HDC1000::conv_c_to_f()
+{
+    float tmp = temperature();
+    tmp = temp;
+    return (tmp * 1.8f) + 32.0f ;
+}
+
+
+/////////////// Read data from sensor /////////////////////
+float HDC1000::humidity()
+{
+    return (float)humi * 100 / 65536;
+}
+
+/////////////// Initialize ////////////////////////////////
+void HDC1000::init()
+{
+    _i2c.frequency(100000);
+    get_IDs();
+    set_config(BOTH_T_14_H_14);
+}
+
+/////////////// ID ////////////////////////////////////////
+uint16_t HDC1000::read_M_ID()
+{
+    return manufacturer_id_number;
+}
+
+uint16_t HDC1000::read_D_ID()
+{
+    return device_id_number;
+}
+
+uint8_t HDC1000::who_am_i()
+{
+    if (device_id_number == I_AM_HDC1000) {
+        return 1;
+    } else {
+        return 0;
+    }
+}
+
+/////////////// Configration //////////////////////////////
+uint16_t HDC1000::set_config(uint16_t cfg)
+{
+    dt[0] = HDC1000_REG_CONFIG;
+    dt[1] = (uint8_t)(cfg >> 8);
+    dt[2] = (uint8_t)(cfg & 0xff);
+    _i2c.write((int)HDC1000_addr, (char *)dt, 3, false);
+    return read_config();
+}
+
+uint16_t HDC1000::read_config(void)
+{
+    dt[0] = HDC1000_REG_CONFIG;
+    _i2c.write((int)HDC1000_addr, (char *)dt, 1, true);
+    _i2c.read(HDC1000_addr, (char *)dt, 2, false);
+    return (uint16_t)(dt[0] << 8 | dt[1]);
+}
+
+/////////////// I2C Freq. /////////////////////////////////
+void HDC1000::frequency(int hz)
+{
+    _i2c.frequency(hz);
+}
+
+/////////////// Read ID ///////////////////////////////////
+void HDC1000::get_IDs()
+{
+    // Manufacturer ID
+    dt[0] = HDC1000_REG_M_ID;
+    _i2c.write((int)HDC1000_addr, (char *)dt, 1, true);
+    _i2c.read(HDC1000_addr, (char *)dt, 2, false);
+    manufacturer_id_number = dt[0] << 8 | dt[1];
+    // Device ID
+    dt[0] = HDC1000_REG_D_ID;
+    _i2c.write((int)HDC1000_addr, (char *)dt, 1, true);
+    _i2c.read(HDC1000_addr, (char *)dt, 2, false);
+    device_id_number = dt[0] << 8 | dt[1];
+}

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/HDC1000.h	Mon Sep 11 02:06:47 2017 +0000
@@ -0,0 +1,153 @@
+
+/*
+ * mbed library program
+ *  Low Power, High Accuracy Digital Humidity Sensor with Integrated Temperature Sensor
+ *  HDC1000 Texas Instruments
+ *
+ * Copyright (c) 2015,'17 Kenji Arai / JH1PJL
+ *  http://www.page.sannet.ne.jp/kenjia/index.html
+ *  http://mbed.org/users/kenjiArai/
+ *      Created: Feburary   9th, 2015
+ *      Revised: AAugust   21st, 2017
+ */
+/*
+ *---------------- REFERENCE ----------------------------------------------------------------------
+ *  http://www.ti.com/product/HDC1000/description
+ *  http://akizukidenshi.com/catalog/g/gM-08775/ (Not avairable now)
+ */
+ 
+#ifndef HDC1000_H
+#define HDC1000_H
+ 
+#include "mbed.h"
+ 
+// Humidity / Temperature Sensor, HDC1000 T.I.
+// Address b7=1,b6=0,b5=0,b4=0,b3=0,b2=0,b1=0, b0=R/W
+#define HDC1000ADDR   (0x40 << 1)  // CLICK BOARD
+
+ 
+////////////// Registers //////////////////////////////////
+// Register definition
+#define HDC1000_REG_TEMP    0x00
+#define HDC1000_REG_HUMI    0x01
+#define HDC1000_REG_CONFIG  0x02
+#define HDC1000_REG_S_ID_F  0xfb
+#define HDC1000_REG_S_ID_M  0xfc
+#define HDC1000_REG_S_ID_L  0xfd
+#define HDC1000_REG_M_ID    0xfe
+#define HDC1000_REG_D_ID    0xff
+ 
+////////////// ID /////////////////////////////////////////
+#define I_AM_HDC1000        0x1000
+#define DEV_REG_ID          0x5449
+ 
+////////////// Operating mode ///////////////////
+#define ACQ_MODE_SEPARETE   (0UL << 12)
+#define ACQ_MODE_BOTH       (1UL << 12)
+#define TRES_14BIT          (0UL << 10)
+#define TRES_11BIT          (1UL << 10)
+#define HRES_14BIT          (0UL << 8)
+#define HRES_11BIT          (1UL << 8)
+#define HRES_08BIT          (2UL << 8)
+#define BOTH_T_14_H_14      (TRES_14BIT + HRES_14BIT + ACQ_MODE_BOTH)
+ 
+
+class HDC1000
+{
+public:
+    /** Configure data pin (with other devices on I2C line)
+      * @param data SDA and SCL pins
+      */
+    HDC1000(PinName p_sda, PinName p_scl);
+ 
+    /** Configure data pin (with other devices on I2C line)
+      * @param data SDA and SCL pins
+      * @param device address
+      */
+    HDC1000(PinName p_sda, PinName p_scl, uint8_t addr);
+ 
+    /** Configure data pin (with other devices on I2C line)
+      * @param I2C previous definition
+      */
+    HDC1000(I2C& p_i2c);
+    HDC1000(I2C& p_i2c, uint8_t addr);
+ 
+    /** Start convertion & data save
+      * @param none
+      * @return none
+      */
+    void get(void);
+ 
+    /** Read temperature data
+      * @param none
+      * @return temperature
+      */
+    float temperature(void);
+    
+    float conv_c_to_f(void);
+ 
+    /** Read humidity data
+      * @param none
+      * @return humidity
+      */
+    float humidity(void);
+ 
+    /** HDC1000 Configuration
+      * @param none
+      * @return none
+      */
+    void config(void);
+ 
+    /** Read Configuration
+      * @param none
+      * @return config. data
+      */
+    uint16_t read_config(void);
+ 
+    /** Set config register
+      * @param config parameter
+      * @return config read data
+      */
+    uint16_t set_config(uint16_t cfg);
+ 
+    /** Set I2C clock frequency
+      * @param freq.
+      * @return none
+      */
+    void frequency(int hz);
+ 
+    /** check Device ID number
+      * @param none
+      * @return HDC1000 = 1, others  0
+      */
+    uint8_t who_am_i(void);
+ 
+    /** Read Manufacturer ID
+      * @param none
+      * @return ID
+      */
+    uint16_t read_M_ID(void);
+ 
+    /** Read Device ID
+      * @param none
+      * @return ID
+      */
+    uint16_t read_D_ID(void);
+ 
+protected:
+    I2C *_i2c_p;
+    I2C &_i2c;
+ 
+    void get_IDs(void);
+    void init(void);
+ 
+private:
+    uint8_t  HDC1000_addr;
+    uint8_t  dt[4];
+    uint16_t temp;
+    uint16_t humi;
+    uint16_t manufacturer_id_number;
+    uint16_t device_id_number;
+};
+ 
+#endif      // HDC1000_H
\ No newline at end of file