Hexiwear / Hexi_MLX90614

Updated i2c interface to work correctly with mBed and Hexiwear

Dependents:   Hexi_Click_IRThermo_Example

Fork of MLX90614 by Hikaru Sugiura

mlx90614.h@5:8f8aedd25609, 2016-10-27 (annotated)

Committer:
daveyclk
Date:
Thu Oct 27 20:06:15 2016 +0000
Revision:
5:8f8aedd25609
Parent:
4:dcd4fe76bd13 
Completely re-written i2c interface as original did not work.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
aquahika 1:4a60d3f1e91e 1 #include "mbed.h"
aquahika 1:4a60d3f1e91e 2
aquahika 1:4a60d3f1e91e 3 //Melexis Infrared Thermometer MLX90614 Library
aquahika 1:4a60d3f1e91e 4
aquahika 1:4a60d3f1e91e 5 //*****************************************************************
daveyclk 5:8f8aedd25609 6 // Build : 27/10/16 Dave Clarke
aquahika 1:4a60d3f1e91e 7 // Only read thermo data.
aquahika 1:4a60d3f1e91e 8 //
aquahika 1:4a60d3f1e91e 9 // This program does not check CRC.
aquahika 1:4a60d3f1e91e 10 // If you want to check CRC, please do it your self :)
aquahika 1:4a60d3f1e91e 11 //****************************************************************//
aquahika 1:4a60d3f1e91e 12
aquahika 3:eb618e916622 13 /**An Interface for MLX90614
aquahika 3:eb618e916622 14 *
aquahika 3:eb618e916622 15 * @code
aquahika 2:01d333d06727 16 * //Print temperature data
aquahika 2:01d333d06727 17 * #include "mbed.h"
aquahika 2:01d333d06727 18 * #include "mlx90614.h"
aquahika 2:01d333d06727 19 *
aquahika 2:01d333d06727 20 * I2C i2c(p28,p27); //sda,scl
aquahika 2:01d333d06727 21 * MLX90614 thermometer(&i2c);
aquahika 4:dcd4fe76bd13 22 * float temp;
aquahika 2:01d333d06727 23 *
aquahika 2:01d333d06727 24 * void main(void){
aquahika 4:dcd4fe76bd13 25 * if(thermometer.getTemp(&temp)){
aquahika 2:01d333d06727 26 * printf("Temperature : %f \r\n",temp);
aquahika 2:01d333d06727 27 * }
aquahika 2:01d333d06727 28 * wait(0.5);
aquahika 2:01d333d06727 29 *
aquahika 2:01d333d06727 30 * }
aquahika 3:eb618e916622 31 * @endcode
aquahika 3:eb618e916622 32 */
aquahika 2:01d333d06727 33
aquahika 2:01d333d06727 34
aquahika 1:4a60d3f1e91e 35 class MLX90614{
aquahika 1:4a60d3f1e91e 36
aquahika 1:4a60d3f1e91e 37 public:
aquahika 2:01d333d06727 38 /** Create MLX90614 interface, initialize with selected I2C port and address.
aquahika 2:01d333d06727 39 *
aquahika 2:01d333d06727 40 * @param i2c I2C device pointer
aquahika 2:01d333d06727 41 * @param addr Device address(default=0xB4)
aquahika 2:01d333d06727 42 */
daveyclk 5:8f8aedd25609 43 MLX90614(I2C* i2c,uint8_t addr=0xB4);
aquahika 2:01d333d06727 44
aquahika 2:01d333d06727 45 /** Get Temperature data from MLX90614.
aquahika 2:01d333d06727 46 *
aquahika 2:01d333d06727 47 * @param temp_val return valiable pointer
aquahika 2:01d333d06727 48 * @return 0 on success (ack), or non-0 on failure (nack)
aquahika 2:01d333d06727 49 */
aquahika 1:4a60d3f1e91e 50 bool getTemp(float* temp_val);
aquahika 1:4a60d3f1e91e 51
aquahika 1:4a60d3f1e91e 52 private:
aquahika 1:4a60d3f1e91e 53 I2C* i2c;
aquahika 1:4a60d3f1e91e 54 int i2caddress;
aquahika 1:4a60d3f1e91e 55
daveyclk 5:8f8aedd25609 56
daveyclk 5:8f8aedd25609 57
aquahika 0:9237d31f0d03 58 };