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GPIO used as I2C SCL signal for second I2C bus was changed from GPIO16 to GPIO12 in this example. Reason is that GPIO16 is slower than other GPIOs. |
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| .. | ||
| sht3x_callback_one_sensor | ||
| sht3x_callback_two_sensors | ||
| sht3x_task_one_sensor | ||
| sht3x_timer_one_sensor | ||
| README.md | ||
SHT3x Driver Examples
These examples references two addtional drivers i2c and sht3x, which are provided in the ../../extras folder.
If you plan to use one or both of this drivers in your own projects, please check the main development pages for updated versions or reported issues.
Hardware setup
There are examples for only one sensor and examples for two sensors.
To run examples with one sensor, just use GPIO5 (SCL) and GPIO4 (SDA) to connect to the SHT3x sensor's I2C interface.
If you want to run examples with two sensors, you could do this with only one bus and different I2C addresses or with two buses and the same or different I2C addresses. In later case, use GPIO16 (SCL) and GPIO14 (SDA) for the second bus to connect to the second SHT3x sensor's I2C interface.
Example description
shtx_callback_one_sensor
This example shows how to use a callback function to get the results of periodic measurements of only one sensor with a period of 1000 ms. It includes some simple error handling.
shtx_callback_two_sensors
This example shows how to use a callback function to get the results of periodic measurements of two sensors with different measurement periods of 1000 ms and 5000 ms, respectively. The sensors are connected to two different buses. There is no error handling in this example.
shtx_task_one_sensor
This example shows how to use a task in conjunction with function sht3x_get_values to get the results of periodic measurements of only one sensor with a period of 1000 ms. The task uses function vTaskDelay to realize a periodic exudation of function sht3x_get_values with same rate as periodic measurements. There is no error handling in this example.
shtx_timer_one_sensor
This example shows how to use a software timer and timer callback function in conjunction with function sht3x_get_values to get the results of periodic measurements of only one sensor with a period of 1000 ms. The timer callback function executes function sht3x_get_values to get the results of periodic measurements. The timer is started with same period as periodic measurements. Thus, the timer callback function is executed at same rate as periodic measurements. There is no error handling in this example.