import smbus2
import bme280
import time

# I2C bus ini initialisieren
bus = smbus2.SMBus(1)

class EnvironmentSensor:
    def __init__(self, addr):
        self.addr = addr

    def temperature(self):
        return bme280.sample(bus, self.addr).temperature
    def humidity(self):
        return bme280.sample(bus, self.addr).humidity
    def pressure(self):
        return bm2280.sample(bus, self.addr).pressure

env=[EnvironmentSensor(0x76), EnvironmentSensor(0x77)]

lightMeasurementTime=0.2

def readBH1750(bus, addr = 0x23):
    bus.write_byte(addr, 0x01) # power on 
    bus.write_byte(addr, 0x20) # set high res onetime measurement mode
    time.sleep(lightMeasurementTime) # 0.1 should already be enough time for measurement
    data = bus.read_i2c_block_data(addr, 0, 2) # get measurement result
    return ((data[0] << 8) + data[1]) / 1.2 # factor 1.2 is from sensor datasheet


def illuminance():
    return readBH1750(bus)

def environment(sensor):
    if sensor == 0:
        return bme280.sample(bus, 0x76)
    elif sensor == 1:
        return bme280.sample(bus, 0x77)
    else:
        raise ValueError