KAmodHTS221

Description

KAmodHTS221 is a module, which allow to make a measurement of humidity and temperature. Thanks to embedded voltage regulator and logic level translator, it can be used in embedded system with power supply 2.5 - 5.5V. Module KAmodHTS221 bases on humidity / temperature sensor HTS221 from STMicroelectronics. The characteristic features of this sensor are: measurement possibility in range 0 - 60°C or air humidity in range 0 - 100%.

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Basic features and parameters

• Humidity / temperature sensor HTS221 from STMicroelectronics company
• Measurement range: 0 - 100% (humidity) / 0 - 60°C (temperature)
• Humidity measurement accuracy: ± 6% (0 - 100% RH) / ± 4.5% (20 - 80% RH)
• Temperature measurement accuracy: ± 1°C (0 - 60°C) / ± 0.5°C (15 - 40°C)
• Power supply voltage: 2.5V - 5.5V
• Power consumption: 9mA
• Measurement data rate (ODR): 1 - 12.5[Hz]
• ADC converter resolution: 16 bits
• Communication interface: SPI / I2C
• Embedded voltage regulator and logic level translator (SDA and SCL lines)
• Data ready output (DRDY)
• Place for soldering of pin header
• Mounting holes 3mm
• Module size (without connector): 24mm x 15mm x 3mm

Standard equipment

Code	Description
KAmodHTS221	Assembled and launched module Pin header (male and angle) for soldering

Electrical schematic

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Outputs description

center|200px	JP1	I2C	SPI
	+3.3V	Module power supply
	+VIN
	GND
	SDA/SDI/SDO	SDA	SDI/SDO
	SCL/SPC	SCL	SPC
	SDO/SA0	SA0	-
	GND	Additional ground
	CS	CS	CS
	DRDY	Data ready signalization

External links

• HTS221 chip datasheet
• C language library for STM32
• Example for Arduino on MIKROKONTROLER.pl
• Example for STM32 on HobbySpace.pl