smartboxchannel / arduino-shtc3

A minimal arduino library for SHTC3 temperature & Humidity sensor

A minimial arduino library fro SHTC3 Temperature & Humidity sensor

A bare minimal arudino lib for this sensor for low power applications based on official SHT libraries.

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Usage

The library is designed for low power applications that will poll the reading periodically. When the sensor is not reading it is keep asleep consuming less than 1 uA.

 
    SHTC3 sensor(Wire);

    void setup() {
            Serial.begin(9600)
            Wire.begin();
            sensor.begin();
    }
    void loop() {
            s.sample();
            Serial.print(F("[SHTC3] T:"));
            Serial.print(s.readTempC());
            Serial.print(F(" Cº  /   H: "));
            Serial.print(s.readHumidity());
            Serial.println(F(" %"));
            delay(2000);
    }

Technical notes

• The sensor is _NOT 5V tolerant: If using 5V boards a 3.3V power source or 3.3V regulator need to be used. Most arduino boards have 3.3V power line that can be used to power the device. SCL & SDA require also logic level shifters are required as this pins are nor 5V tolerant.
• Pull-up resistors are typically needed on SCL & SDA lines. Resistor values will depend on frequency and bus configuration.
• Sensor supports up to 400kHz (fast I2C).

Compilation options:

if ARDUINO_SHTC3_NOFLOAT is defined no float computation is done. Temperature and Humidity will return a 16bit integer. This optimization will reduce the code size more at expense of precision in the reading.

Notes:

Library has been tested on a arduino pro mini 3.3V.

Change Log

• 0.0.1 First version
• 0.0.2 Bug correction
• 0.0.3 Fix wake & reset delay bug.