Temperature Sensor Example#

Introduction#

This example demonstrates the HAL call flow for the K230 built-in temperature sensor, periodically reading chip temperature and switching between sampling modes and trim calibration values.

Example source code: src/rtsmart/examples/peripheral/tsensor/test_tsensor.c

Example Capabilities#

Set working mode: single sampling / continuous sampling
Set and read trim calibration value (range 0..15)
Periodically read current temperature (unit: degrees Celsius)
Supports Ctrl+C to exit

Key Interfaces#

drv_tsensor_set_mode() / drv_tsensor_get_mode()
drv_tsensor_set_trim() / drv_tsensor_get_trim()
drv_tsensor_read_temperature()

Mode constants (from drv_tsensor.h):

RT_DEVICE_TS_CTRL_MODE_SINGLE
RT_DEVICE_TS_CTRL_MODE_CONTINUUOS

Build and Run#

Build#

cd src/rtsmart/examples/peripheral/tsensor
make

Run#

./test_tsensor

This example does not require command-line arguments.

Output Description#

The example prints the current mode, trim, and temperature values. A typical output is as follows:

mode = 2, trim = 0
temperature = 43.125000
temperature = 43.187500
temperature = 43.125000
mode = 2, trim = 1
temperature = 43.250000
...

Behavioral characteristics:

Read the temperature 3 times for each trim value
trim increments and loops (0..RT_DEVICE_TS_CTRL_MAX_TRIM)
When trim approaches the upper limit, the example switches between single/continuous modes

Differences from Previous Description#

This example currently covers only the K230 built-in tsensor HAL, and does not include DS18B20, external I2C temperature sensors, Fahrenheit conversion, alarm threshold strategies, or other extended example logic.

Tip

For the complete temperature sensor interface and macro definitions, please refer to the Temperature Sensor API Documentation.