feat(bsec): Add to BME680 demo

preload/apps/bme680_sensor_demo/__init__.py

@@ -9,23 +9,144 @@ import display
 import os
 import time
 import bme680
+import config
+
+disp = display.open()
+
+
+def rate_iaq(iaq):
+    # Ratings (according to BME680 datasheet):
+    #
+    # Air Quality
+    # Impact (long-term exposure)
+    # Suggested action
+
+    if iaq > 350:
+        # "Extremely Polluted"
+        # "Headaches, additional neurotoxic effects possible"
+        # "Contamination needs to be identified; avoid presence in room and maximize ventilation"
+        # return (color.from_hex(0x663300), "Extrem. p.")
+        return (color.from_hex(0x663300), "Extremly p")
+    if iaq > 250:
+        # "Severely polluted"
+        # "More severe health issue possible if harmful VOC present"
+        # "Contamination should be identified if level is reached even
+        # w/o presence of people; maximize ventilation & reduce attendance"
+        # return (color.from_hex(0x99004c), "Severly p.")
+        return (color.from_hex(0x99004C), " Severly p")
+    if iaq > 200:
+        # "Heavily polluted"
+        # "Exposition might lead to effects like headache depending on type of VOCs"
+        # "Optimize ventilation"
+        # return (color.from_hex(0xff0000), "Heavily p.")
+        return (color.from_hex(0xFF0000), " Heavily p")
+    if iaq > 150:
+        # "Moderately polluted"
+        # "More significant irritation possible"
+        # "Increase ventilation with clean air"
+        # return (color.from_hex(0xff7e00), "Modera. p.")
+        return (color.from_hex(0xFF7E00), "Moderate p")
+    if iaq > 100:
+        # "Lightly polluted"
+        # "Reduction of well-being possible"
+        # "Ventilation suggested"
+        # return (color.from_hex(0xffff00), "Lightly p.")
+        return (color.from_hex(0xFFFF00), "Lightly p")
+    if iaq > 50:
+        # "Good"
+        # "No irritation or impact on well-being"
+        # No Measures needed
+        return (color.from_hex(0x92D050), "Good")
+
+    # "Excellent"
+    # "Pure air; best for well-being"
+    # "No Measures needed"
+    return (color.from_hex(0x00E400), "Excellent")
+
+
+def set_config(enable):
+    if enable:
+        config.set_string("bsec_enable", "true")
+    else:
+        config.set_string("bsec_enable", "false")
+
+    disp.clear()
+    disp.print("resetting", posy=0, fg=[0, 255, 255])
+    disp.print("to toggle", posy=20, fg=[0, 255, 255])
+    disp.print("BSEC state", posy=40, fg=[0, 255, 255])
+    disp.update()
+    os.reset()
 
 
 def main():
-    bme680.init()
+    sensor = bme680.Bme680()
+
+    disp.clear()
+    disp.print("Toggle BSEC", posy=20)
+    disp.print("-->", posy=40, posx=100)
+    disp.update()
+
+    time.sleep(2)
 
-    disp = display.open()
     disp.clear().update()
 
+    t0 = time.monotonic() - 3
+
+    b_old = buttons.read()
+
     while True:
-        sensor_data = bme680.get_data()
-        disp.clear()
-        disp.print("BME680", posx=38)
-        disp.print("{:7.2f} C".format(sensor_data[0]), posy=20)
-        disp.print("{:7.2f} rh".format(sensor_data[1]), posy=40)
-        disp.print("{:7.2f} hPa".format(sensor_data[2]), posy=60)
-        disp.update()
-        time.sleep(10)
+        b_new = buttons.read()
+        if not b_old == b_new:
+            b_old = b_new
+            if b_new == buttons.TOP_RIGHT:
+                enable = "false"
+                try:
+                    enable = config.get_string("bsec_enable")
+                except OSError:
+                    pass
+                if enable.lower() in ["true", "1"]:
+                    set_config(False)
+                else:
+                    set_config(True)
+
+        if time.monotonic() - t0 >= 3:
+            t0 += 3
+            data = sensor.get_data()
+            print(data)
+            disp.clear()
+            if isinstance(data, bme680.BSECData):
+                disp.print("BME680 + BSEC", posx=6, font=2, fg=color.RED)
+            else:
+                disp.print("BME680", posx=38, font=2, fg=color.GREEN)
+
+            disp.print("{:8.2f} C".format(data.temperature), posy=16, font=2)
+            disp.print("{:8.2f} rh".format(data.humidity), posy=32, font=2)
+            disp.print("{:8.2f} hPa".format(data.pressure), posy=48, font=2)
+
+            if isinstance(data, bme680.BSECData):
+                if data.iaq_accuracy == 0:
+                    disp.print("IAQ: ", posy=64, font=2)
+                    disp.print("Warming up", posy=64, posx=45 + 5, font=2, fg=color.RED)
+                elif data.iaq_accuracy == 1:
+                    disp.print("IAQ: ", posy=64, font=2)
+                    disp.print(
+                        "Calibratin", posy=64, posx=45 + 5, font=2, fg=color.YELLOW
+                    )
+                else:
+                    if data.iaq_accuracy == 2:
+                        c = color.YELLOW
+                    else:
+                        c = color.GREEN
+
+                    disp.print("IAQ: ", posy=64, font=2, fg=c)
+
+                    c, rating = rate_iaq(data.iaq)
+                    # disp.print("{:3d}".format(data.iaq), posy=64, posx=45+5, font=2, fg=c)
+                    disp.print(rating, posy=64, posx=45 + 5, font=2, fg=c)
+
+            disp.update()
+
+        time.sleep(0.1)
 
 
 if __name__ == "__main__":