hs3003 — HS3003 humidity/temperature sensor

Driver for the Renesas HS3003 high-accuracy relative humidity and temperature sensor over I2C. A single I2C transaction triggers a new measurement and reads back four bytes containing both the humidity and temperature samples; the driver scales the raw counts into engineering units.

Example:

import time
from machine import Pin, I2C
from hs3003 import HS3003

bus = I2C(1, scl=Pin(15), sda=Pin(14))
hts = HS3003(bus)

while True:
    print("rH: %.2f%% T: %.2fC" % (hts.humidity(), hts.temperature()))
    time.sleep_ms(100)

Classes

class hs3003.HS3003(bus: machine.I2C, address: int = 0x44)

Construct an HS3003 instance.

bus

A configured machine.I2C bus the sensor is attached to.

address

7-bit I2C address of the device. Defaults to 0x44, the factory address used by all HS3003 parts.

humidity() → float

Trigger a measurement and return the relative humidity in percent (%RH), computed as (raw & 0x3FFF) / 16383 * 100.

temperature() → float

Trigger a measurement and return the temperature in degrees Celsius, computed as (raw >> 2) / 16383 * 165 - 40.