Diff: TMPx75.h

Revision:

0:ba71558a5d0a

Child:

1:ba7de6d38992

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/TMPx75.h	Wed Dec 12 21:48:42 2018 +0000
@@ -0,0 +1,95 @@
+/*
+Copyright (c) 2018 Jacobus L de Jager
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+*/
+
+#ifndef TMPx75_h
+#define TMPx75_h
+
+#include "mbed.h"
+
+/* 
+Library for TMP175 and TMP75 Temperature Sensors
+For reference, read the datasheet: http://www.ti.com/lit/ds/symlink/tmp75.pdf
+
+I2C ADDR (TMP75): 1 0 0 1 A2 A1 A0 (1001000 = 0x48)
+*/
+
+#define TEMPERATURE_REGISTER    0x00
+#define CONFIGURATION_REGISTER  0x01
+#define T_LOW_REGISTER          0x02
+#define T_HIGH_REGISTER         0x03
+
+//COnfiguration Register
+//Register Byte: OS R1 R0 F1 F0 POL TM SD
+
+//Default: continuous, comparator, high to low, 1 fault, 9 bits
+#define DEFAULT_CONFIG          0x00
+
+//Shutdown Mode (SD)
+#define CONTINUOUS_MODE         0x00 
+#define SHUTDOWN_MODE           0x01
+ 
+//Thermostat Mode (TM)
+#define COMPARATOR_MODE         0x00
+#define INTERRUPT_MODE          0x02
+
+//Polarity (POL)
+#define HIGH_TO_LOW_POL         0x00
+#define LOW_TO_HIGH_POL         0x04
+
+//Fault Queue (F1/F0)
+#define CONSECUTIVE_FAULTS_1    0x00
+#define CONSECUTIVE_FAULTS_2    0x08
+#define CONSECUTIVE_FAULTS_4    0x10
+#define CONSECUTIVE_FAULTS_6    0x18
+
+//Converter Resolution (R1/R0)
+#define RESOLUTION_9_BITS       0x00    //  (0.5°C)     27.5 ms
+#define RESOLUTION_10_BITS      0x20    //  (0.25°C)    55 ms
+#define RESOLUTION_11_BITS      0x40    //  (0.125°C)   110 ms
+#define RESOLUTION_12_BITS      0x60    //  (0.0625°C)  220 ms
+
+//One-Shot (OS)
+#define ONE_SHOT_MODE           0x80        
+
+
+class TMPx75
+{
+public:
+    TMPx75(I2C *i2c, uint8_t i2c_addr);
+    virtual     ~TMPx75();
+    Serial      pc;
+
+    float       read_temperature();
+    int         read_configuration();
+    void        write_configuration(uint8_t config_byte);
+    float       read_T_LOW();
+    void        write_T_LOW(float temp);
+    float       read_T_HIGH();
+    void        write_T_HIGH(float temp);
+
+private:
+    I2C *_i2c;
+    uint8_t _i2c_addr;
+};
+
+#endif
+