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Fever Click - MikroElektronika Human Body Temperature Sensor

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  • Fever Click - MikroElektronika Human Body Temperature Sensor

    Fever click measures your body temperature with the accuracy of 0.1°C (37°C to 39°C). The click carries MAX30205 human body temperature sensor. Fever click is designed to work on a 3.3V power supply. It communicates with the target MCU over I2C interface.

    MAX30205 sensor features

    The MAX30205 temperature sensor accurately measures temperature and provide an overtemperature alarm/interrupt/shutdown output.

    This device converts the temperature measurements to digital form using a high resolution, sigma-delta, analog-to-digital converter (ADC). An I2C-compatible two-wire serial interface allows access to conversion results.

    The MAX30205 has 0.1°C accuracy (37°C to 39°C), and 16-Bit (0.00390625°C) temperature resolution.

    How it works

    Take a look at how Fever click reads the body temperature, and the results are shown on the mikromedia PIC32:

    For this demo we measured the temperature from the palm of the hand, so the shown results are a couple of degrees lower than the average human body temperature.

    Normal body temperature

    The normal body temperature, of a healthy person, is 37°C. But this depends on various factors, like the age and sex of the person, the temperature of the room the person is in, the time of the day, etc.

    A body temperature above 37.5°C up to 40°C is considered a fever.


    Type Temperature,Humidity
    Applications Fitness and medical applications
    MCU MAX30205 human body temperature sensor
    Key Features 0.1°C Accuracy (37°C to 39°C), 16-Bit (0.00390625°C) temperature resolution
    Interface I2C,GPIO
    Input Voltage 3.3V
    Compatibility mikroBUS
    Click board size M (42.9 x 25.4 mm)

    Pinout diagram

    This table shows how the pinout on Fever click corresponds to the pinout on the mikroBUS™ socket (the latter shown in the two middle columns).

    Notes Pin Mikrobus logo.png Pin Notes
    NC 1 AN PWM 16 NC
    NC 2 RST INT 15 OS Overtemperature Shutdown Output. Open-drain.
    NC 3 CS TX 14 NC
    NC 4 SCK RX 13 NC
    NC 5 MISO SCL 12 SCL Serial-Data Clock Input. Open-drain.
    NC 6 MOSI SDA 11 SDA Serial-Data Input/Output Line. Open-drain.
    Power supply +3.3V 7 3.3V 5V 10 NC
    Ground GND 8 GND GND 9 GND Ground

    Maximum ratings

    Description Min Typ Max Unit
    Supply Voltage -0.3 4 V
    Input Current at Any Pin 5 mA
    Continuous Power Dissipation 1951.2 mW
    Operating Temperature Range 0 50 °C


    Code examples for Fever click, written for MikroElektronika hardware and compilers are available on Libstock.

    Fever click library communicates with the sensor, and converts the measured data into useful format. It also contains functions for the configuration of the click.


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