AT&T IoT / Mbed OS ATT_AWS_IoT_demo Featured

Demo application for using the AT&T IoT Starter Kit Powered by AWS.

Dependencies:   SDFileSystem

Fork of ATT_AWS_IoT_demo by Anthony Phillips

IoT Starter Kit Powered by AWS Demo

This program demonstrates the AT&T IoT Starter Kit sending data directly into AWS IoT. It's explained and used in the Getting Started with the IoT Starter Kit Powered by AWS on starterkit.att.com.

What's required

  • AT&T IoT LTE Add-on (also known as the Cellular Shield)
  • NXP K64F - for programming
  • microSD card - used to store your AWS security credentials
  • AWS account
  • Python, locally installed

If you don't already have an IoT Starter Kit, you can purchase a kit here. The IoT Starter Kit Powered by AWS includes the LTE cellular shield, K64F, and a microSD card.

Sensors/Temperature/HTS221.h@27:2f486c766854, 2017-02-07 (annotated)

Committer:
rfinn
Date:
Tue Feb 07 16:18:57 2017 +0000
Revision:
27:2f486c766854
Parent:
20:ee34856ae510 
changed SDFileSystem library

Who changed what in which revision?

UserRevisionLine numberNew contents of line
ampembeng 20:ee34856ae510 1
ampembeng 20:ee34856ae510 2 #ifndef HTS221_H_
ampembeng 20:ee34856ae510 3 #define HTS221_H_
ampembeng 20:ee34856ae510 4
ampembeng 20:ee34856ae510 5 class HTS221 {
ampembeng 20:ee34856ae510 6 public:
ampembeng 20:ee34856ae510 7 HTS221(void);
ampembeng 20:ee34856ae510 8 int begin(void);
ampembeng 20:ee34856ae510 9 int activate(void);
ampembeng 20:ee34856ae510 10 int deactivate(void);
ampembeng 20:ee34856ae510 11
ampembeng 20:ee34856ae510 12 int bduActivate(void);
ampembeng 20:ee34856ae510 13 int bduDeactivate(void);
ampembeng 20:ee34856ae510 14
ampembeng 20:ee34856ae510 15 int readHumidity(void);
ampembeng 20:ee34856ae510 16 double readTemperature(void);
ampembeng 20:ee34856ae510 17 private:
ampembeng 20:ee34856ae510 18 int storeCalibration(void);
ampembeng 20:ee34856ae510 19 unsigned char _h0_rH, _h1_rH;
ampembeng 20:ee34856ae510 20 unsigned int _T0_degC, _T1_degC;
ampembeng 20:ee34856ae510 21 unsigned int _H0_T0, _H1_T0;
ampembeng 20:ee34856ae510 22 unsigned int _T0_OUT, _T1_OUT;
ampembeng 20:ee34856ae510 23 double _temperature;
ampembeng 20:ee34856ae510 24 int _humidity;
ampembeng 20:ee34856ae510 25 unsigned char _address;
ampembeng 20:ee34856ae510 26
ampembeng 20:ee34856ae510 27 unsigned char readRegister(unsigned char slaveAddress, unsigned char regToRead);
ampembeng 20:ee34856ae510 28 int writeRegister(unsigned char slaveAddress, unsigned char regToWrite, unsigned char dataToWrite);
ampembeng 20:ee34856ae510 29 };
ampembeng 20:ee34856ae510 30
ampembeng 20:ee34856ae510 31 #define HTS221_ADDRESS 0xBF
ampembeng 20:ee34856ae510 32
ampembeng 20:ee34856ae510 33 //Define a few of the registers that we will be accessing on the HTS221
ampembeng 20:ee34856ae510 34 #define WHO_AM_I 0x0F
ampembeng 20:ee34856ae510 35 #define WHO_AM_I_RETURN 0xBC //This read-only register contains the device identifier, set to BCh
ampembeng 20:ee34856ae510 36
ampembeng 20:ee34856ae510 37 #define AVERAGE_REG 0x10 // To configure humidity/temperature average.
ampembeng 20:ee34856ae510 38 #define AVERAGE_DEFAULT 0x1B
ampembeng 20:ee34856ae510 39
ampembeng 20:ee34856ae510 40 /*
ampembeng 20:ee34856ae510 41 * [7] PD: power down control
ampembeng 20:ee34856ae510 42 * (0: power-down mode; 1: active mode)
ampembeng 20:ee34856ae510 43 *
ampembeng 20:ee34856ae510 44 * [6:3] Reserved
ampembeng 20:ee34856ae510 45 *
ampembeng 20:ee34856ae510 46 * [2] BDU: block data update
ampembeng 20:ee34856ae510 47 * (0: continuous update; 1: output registers not updated until MSB and LSB reading)
ampembeng 20:ee34856ae510 48 The BDU bit is used to inhibit the output register update between the reading of the upper
ampembeng 20:ee34856ae510 49 and lower register parts. In default mode (BDU = ?0?), the lower and upper register parts are
ampembeng 20:ee34856ae510 50 updated continuously. If it is not certain whether the read will be faster than output data rate,
ampembeng 20:ee34856ae510 51 it is recommended to set the BDU bit to ?1?. In this way, after the reading of the lower (upper)
ampembeng 20:ee34856ae510 52 register part, the content of that output register is not updated until the upper (lower) part is
ampembeng 20:ee34856ae510 53 read also.
ampembeng 20:ee34856ae510 54 *
ampembeng 20:ee34856ae510 55 * [1:0] ODR1, ODR0: output data rate selection (see table 17)
ampembeng 20:ee34856ae510 56 */
ampembeng 20:ee34856ae510 57 #define CTRL_REG1 0x20
ampembeng 20:ee34856ae510 58 #define POWER_UP 0x80
ampembeng 20:ee34856ae510 59 #define BDU_SET 0x4
ampembeng 20:ee34856ae510 60 #define ODR0_SET 0x1 // setting sensor reading period 1Hz
ampembeng 20:ee34856ae510 61
ampembeng 20:ee34856ae510 62 #define CTRL_REG2 0x21
ampembeng 20:ee34856ae510 63 #define CTRL_REG3 0x22
ampembeng 20:ee34856ae510 64 #define REG_DEFAULT 0x00
ampembeng 20:ee34856ae510 65
ampembeng 20:ee34856ae510 66 #define STATUS_REG 0x27
ampembeng 20:ee34856ae510 67 #define TEMPERATURE_READY 0x1
ampembeng 20:ee34856ae510 68 #define HUMIDITY_READY 0x2
ampembeng 20:ee34856ae510 69
ampembeng 20:ee34856ae510 70 #define HUMIDITY_L_REG 0x28
ampembeng 20:ee34856ae510 71 #define HUMIDITY_H_REG 0x29
ampembeng 20:ee34856ae510 72 #define TEMP_L_REG 0x2A
ampembeng 20:ee34856ae510 73 #define TEMP_H_REG 0x2B
ampembeng 20:ee34856ae510 74 /*
ampembeng 20:ee34856ae510 75 * calibration registry should be read for temperature and humidity calculation.
ampembeng 20:ee34856ae510 76 * Before the first calculation of temperature and humidity,
ampembeng 20:ee34856ae510 77 * the master reads out the calibration coefficients.
ampembeng 20:ee34856ae510 78 * will do at init phase
ampembeng 20:ee34856ae510 79 */
ampembeng 20:ee34856ae510 80 #define CALIB_START 0x30
ampembeng 20:ee34856ae510 81 #define CALIB_END 0x3F
ampembeng 20:ee34856ae510 82 /*
ampembeng 20:ee34856ae510 83 #define CALIB_T0_DEGC_X8 0x32
ampembeng 20:ee34856ae510 84 #define CALIB_T1_DEGC_X8 0x33
ampembeng 20:ee34856ae510 85 #define CALIB_T1_T0_MSB 0x35
ampembeng 20:ee34856ae510 86 #define CALIB_T0_OUT_L 0x3C
ampembeng 20:ee34856ae510 87 #define CALIB_T0_OUT_H 0x3D
ampembeng 20:ee34856ae510 88 #define CALIB_T1_OUT_L 0x3E
ampembeng 20:ee34856ae510 89 #define CALIB_T1_OUT_H 0x3F
ampembeng 20:ee34856ae510 90 */
ampembeng 20:ee34856ae510 91
ampembeng 20:ee34856ae510 92 #endif
ampembeng 20:ee34856ae510 93