MIKROE Humidity Click

MIKROE Humidity Click is a compact add-on board used to sense the amount of water vapor in the air. This board features the HIH-5030 an analog output relative humidity sensor from Honeywell Sensing and Productivity Solutions. The HIH-5031 is a covered condensation-resistant integrated circuit humidity sensor that is factory-fitted with a hydrophobic filter allowing usage in many condensing environments. The RH sensor uses a laser-trimmed thermoset polymer capacitive sensing element with on-chip integrated signal conditioning providing enhanced stability accuracy and response time over the entire humidity range of 0%RH to 100%RH. However the choice of signal processing is up to the user; more precisely the user can process the output signal in analog or digital form. This Click board™ is suitable for industrial medical and commercial applications. Humidity Click is supported by a mikroSDK compliant library which includes functions that simplify software development. Humidity Click as its foundation uses the HIH-5030 a high-performance analog-output relative humidity sensor from Honeywell Sensing and Productivity Solutions. The HIH-5030 surface-mounted covered condensation-resistant integrated circuit humidity sensor factory-fitted with a hydrophobic filter allows usage in many condensing environments. It provides enhanced stability accuracy and response time over the entire humidity range of 0%RH to 100%RH with an accuracy of ±3%RH over a wide operating temperature range at the industry’s lowest power. This Click board™ is primarily developed for measuring the amount of water vapor in the air in industrial medical and commercial applications but can also be used in other application fields. The sensing element's multi-layer construction provides enhanced resistance to most application hazards such as condensation dust dirt oils and common environmental chemicals. The sensor converts humidity value into an analog output signal; more precisely the user can process the output signal in analog or digital form. The output voltage of the HIH-5030 can be converted to a digital value using MCP3221 a successive approximation A/D converter with a 12-bit resolution from Microchip using a 2-wire I2C compatible interface or can be sent directly to an analog pin of the mikroBUS™ socket labeled as AN. Selection can be performed by onboard SMD jumper labeled as ADC SEL to an appropriate position marked as AN and I2C. This Click board™ can operate with both 3.3V and 5V logic voltage levels selected via the VCC SEL jumper. This way it is allowed for both 3.3V and 5V capable MCUs to 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.