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Content import leds import htmlcolor import buttons import display import utime import bme680 import math def AirQualityLED(gas_quality, numLEDs): if (gas_quality < 50): QualityColor = htmlcolor.GREEN elif (gas_quality < 100): QualityColor = htmlcolor.YELLOW elif (gas_quality < 150): QualityColor = htmlcolor.ORANGE elif (gas_quality < 200): QualityColor = htmlcolor.RED elif (gas_quality < 250): QualityColor = htmlcolor.CRIMSON else: QualityColor = htmlcolor.PURPLE LEDcount=round(gas_quality/200*numLEDs) leds.clear() for i in range(0,10-LEDcount): leds.set(i,QualityColor) leds.update() bme680.init() cont = True numLEDs=10 while cont: temperature, humidity, pressure, resistance = bme680.get_data() gas_quality = math.log(resistance) + 0.04* math.log(resistance)/humidity #https://forums.pimoroni.com/t/bme680-observed-gas-ohms-readings/6608/17 disp = display.open() disp.clear() disp.print("{:2.2f} °C".format(temperature), fg=[0,255,255], bg=[0,0,0], posx=0, posy=1) disp.print("{:2.2f} %r.h.".format(humidity), fg=[0,255,255], bg=[0,0,0], posx=0, posy=20) disp.print("{:2.0f} hPa".format(pressure), fg=[0,255,255], bg=[0,0,0], posx=0, posy=40) #disp.print("{:2.0f} gas.".format(resistance), fg=[0,255,255], bg=[0,0,0], posx=0, posy=60) disp.print("{:2.0f} gas".format(gas_quality), fg=[0,255,255], bg=[0,0,0], posx=0, posy=60) disp.update() # AirQualityLED(gas_quality, numLEDs) utime.sleep(0.5)