OFF
MIKROE-949
26 g
Status:
SHT1x Click is a compact add-on board for accuracy, high reliability, and long-term stability in humidity and temperature measurements. This board features the SHT11, a humidity and temperature sensor from Sensirion. The SHT11 sensor integrates sensors elements, an amplifier, ADC, OTP memory, and a digital interface in a single housing. It can measure the relative humidity in the range from 0 up to 100% with a typical accuracy of ±3% and temperature from -40 up to 123.8°C with a typical accuracy of ±0.4°C. This Click board™ makes the perfect solution for developing humidity and thermal management of portable electronics and industrial, consumer, and environmental applications.
SHT1x Click is supported by a mikroSDK compliant library, which includes functions that simplify software development. This Click board™ comes as a fully tested product, ready to be used on a system equipped with the mikroBUS™ socket.
This product is no longer in stock
Availability date:
SHT1x Click is based on the SHT11, a humidity and temperature sensor from Sensirion. The SHT11 is a robust and reliable sensor, and even when exposed to conditions outside its normal range, it can recalibrate itself once conditions stabilize. The sensor performs best when operated within a recommended normal temperature range of -20°C up to 100°C. Long-term exposure to conditions outside the normal range may temporarily offset the RH signal. After returning to the normal temperature range, the sensor will slowly return to a calibration state by itself. Also, note that prolonged exposure to extreme conditions may accelerate aging.
Although the typical relative humidity resolution is 12-bit and 14-bit for the temperature readings, both sensors on the SHT11 are seamlessly coupled to a 14-bit ADC. The relative humidity sensor uses a unique capacitive sensor element, while a band-gap sensor measures the temperature. The SHT11 is individually calibrated in a precision humidity chamber, and the calibration coefficients are stored in an onboard OTP memory. The SHT1x Click communicates with the host MCU using an I2C interface over the mikroBUS™ socket, with communication speeds of up to 1MHz. The SHT1x Click does not have a reset pin; if the communication with the sensor is lost, you can reset the sensor via the signal sequence.
While the SHT1x Click cannot measure the dew point directly, it is possible to calculate the dew point using humidity and temperature readings. This is possible because the same monolithic chip measures humidity and temperature. However, it is important to note that the sensor is not sensitive to light, and prolonged exposure to intense UV radiation can cause the housing to deteriorate over time.
This Click board™ can operate with either 3.3V or 5V logic voltage levels selected via the PWR SEL jumper. This way, both 3.3V and 5V capable MCUs can use the communication lines properly. However, the Click board™ comes equipped with a library containing easy-to-use functions and an example code that can be used, as a reference, for further development.
Type
Temperature & humidity
Applications
Can be used for developing humidity and thermal management of portable electronics and industrial, consumer, and environmental applications
On-board modules
SHT11 - humidity and temperature sensor from Sensirion
Key Features
Fully calibrated, linearized, and temperature-compensated digital output, high-speed I2C interface, high performance, very fast Start-up and measurement time, high accuracy and reliability, and more
Interface
I2C
Feature
No ClickID
Compatibility
mikroBUS™
Click board size
S (28.6 x 25.4 mm)
Input Voltage
3.3V or 5V
Category
Click Boards
This table shows how the pinout on SHT1x click corresponds to the pinout on the mikroBUS™ socket (the latter shown in the two middle columns).
Label | Name | Default | Description |
---|---|---|---|
LD1 | PWR | - | Power LED Indicator |
JP1 | PWR SEL | Left | Power/Logic Level Voltage Selection 3V3/5V: Left position 3V3, Right position 5V |
Description | Min | Typ | Max | Unit |
---|---|---|---|---|
Supply Voltage | 3.3 | - | 5 | V |
Humidity Operating Range | 0 | - | 100 | %RH |
Humidity Accuracy | - | ±0.3 | - | %RH |
Humidity Resolution | 8 | 12 | 12 | bit |
Temperature Operating Range | -40 | - | 123.8 | °C |
Temperature Accuracy | - | ±4.0 | - | °C |
Temperature Resolution | 12 | 14 | 14 | bit |
We provide a library for the SHT Click as well as a demo application (example), developed using MIKROE compilers. The demo can run on all the main MIKROE development boards.
Package can be downloaded/installed directly from NECTO Studio Package Manager (recommended), downloaded from our LibStock™ or found on Mikroe github account.
Library Description
This library contains API for SHT Click driver.
Key functions
Returns temperature measurement in single shot mode.
Returns humidity measurement in single shot mode.
Sets the heater state.
Example Description
This application enables usage of the temperature and humidity sensor.
void application_task ( void )
{
// Task implementation.
float temperature;
float humidity;
Delay_ms( 1500 );
temperature = sht_temp_ss( &sht );
log_printf( &logger, "Temperature: %.2f C rn", temperature );
Delay_ms( 200 );
humidity = sht_hum_ss( &sht );
log_printf( &logger, "Humidity: %.2f %% rn", humidity );
Delay_ms( 200 );
}
The full application code, and ready to use projects can be installed directly from NECTO Studio Package Manager (recommended), downloaded from our LibStock™ or found on Mikroe github account.
Other Mikroe Libraries used in the example:
Additional notes and informations
Depending on the development board you are using, you may need USB UART click, USB UART 2 Click or RS232 Click to connect to your PC, for development systems with no UART to USB interface available on the board. UART terminal is available in all MIKROE compilers.
This Click board™ is supported with mikroSDK - MIKROE Software Development Kit. To ensure proper operation of mikroSDK compliant Click board™ demo applications, mikroSDK should be downloaded from the LibStock and installed for the compiler you are using.
For more information about mikroSDK, visit the official page.