Tweaked examples

Author: Gadgetoid

examples/livetest.py

@@ -1,109 +1,53 @@
-"""
-        Pressure     Temperature    Humidity
-128,0,  79,186,128,  122,185,0,     76,55,      128,0,0,   29,39,
-
-128,0,  79,186,144,  122,185,64,    76,59,      128,0,0,   220,120,
-2017-10-13 22:51:50 T: 26.67 degC, P: 1011.79 hPa, H: 49.64 %rH , G: 24487 ohms
-
-128,0,  79,186,160,  122,186,32,    76,61,      128,0,0,   70,56,
-2017-10-13 22:51:53 T: 26.68 degC, P: 1011.79 hPa, H: 49.65 %rH , G: 37891 ohms
-
-128,0,  79,186,224,  122,187,0,     76,61,      128,0,0,   205,55,
-2017-10-13 22:51:56 T: 26.68 degC, P: 1011.79 hPa, H: 49.65 %rH , G: 51080 ohms
-
-128,0,  79,186,224,  122,187,224,   76,62,      128,0,0,   127,247,
-2017-10-13 22:51:59 T: 26.68 degC, P: 1011.79 hPa, H: 49.66 %rH , G: 63052 ohms
-
-128,0,  79,187,32,   122,188,64,    76,58,      128,0,0,   78,119,
-2017-10-13 22:52:02 T: 26.69 degC, P: 1011.79 hPa, H: 49.63 %rH , G: 74195 ohms
-
-128,0,  79,187,112,  122,189,64,    76,48,      128,0,0,   46,183,
-2017-10-13 22:52:05 T: 26.69 degC, P: 1011.77 hPa, H: 49.57 %rH , G: 83681 ohms
-
-128,0,  79,187,128,  122,189,160,   76,45,      128,0,0,   25,55,
-2017-10-13 22:52:08 T: 26.69 degC, P: 1011.77 hPa, H: 49.55 %rH , G: 91612 ohms
-
-128,0,  79,187,144,  122,189,240,   76,48,      128,0,0,   223,182,
-2017-10-13 22:52:11 T: 26.69 degC, P: 1011.77 hPa, H: 49.57 %rH , G: 97109 ohms
-
-128,0,  79,187,160,  122,190,80,    76,49,      128,0,0,   198,118,
-2017-10-13 22:52:14 T: 26.70 degC, P: 1011.77 hPa, H: 49.58 %rH , G: 103197 ohms
-"""
-
+#!/usr/bin/env python
 
 import bme680
-
-example_calibration = [
-#         T2L   T2H   T3    TP    P1L   P1H   P2L
-    192,  108,  103,  3,    47,   80,   144,  236,
-#   P2H   P3    -     P4L   P4H   P5L   P5H   P7
-    214,  88,   255,  42,   30,   169,  255,  54,
-#   P6    -     -     P8L   P8H   P9L   P9H   P10
-    30,   0,    0,    199,  239,  69,   248,  30,
-#   H2H   H2L   H1L   H1H   H3    H4    H5    H6
-    1,    64,   206,  39,   0,    45,   20,   120,
-#   H7    T1L   T1H   GH2L  GH2H  GH1   GH3
-    156,  24,   102,  142,  171,  226,  18,   16,
-    0
-]
-
-example_heat_range = 22
-example_heat_value = 44
-example_sw_error = 227
+import time
 
 sensor = bme680.BME680()
 
-sensor.calibration_data.set_from_array(example_calibration)
-sensor.calibration_data.set_other(
-    example_heat_range,
-    example_heat_value,
-    example_sw_error)
-
+print("Calibration data:")
 for name in dir(sensor.calibration_data):
     if not name.startswith('_'):
         value = getattr(sensor.calibration_data, name)
         if isinstance(value, int):
             print("{}: {}".format(name, value))
 
-sensor.ambient_temperature = 25
-
-"""
-result = []
-for x in range(63, 4033):
-    result.append((x, sensor._calc_heater_duration(x)))
 
-print(result)
+sensor.set_humidity_oversample(bme680.OS_2X)
+sensor.set_pressure_oversample(bme680.OS_4X)
+sensor.set_temperature_oversample(bme680.OS_8X)
+sensor.set_filter(bme680.FILTER_SIZE_3)
+sensor.set_gas_status(bme680.ENABLE_GAS_MEAS)
 
-result = []
-for x in range(200, 401):
-    result.append(sensor._calc_heater_resistance(x))
+print("\n\nInitial reading:")
+for name in dir(sensor.data):
+    value = getattr(sensor.data, name)
+    if not name.startswith('_'):
+        print("{}: {}".format(name, value))
 
-print(result)
-"""
+sensor.set_gas_heater_temperature(320)
+sensor.set_gas_heater_duration(150)
+sensor.select_gas_heater_profile(0)
 
-"""
-        Pressure     Temperature    Humidity               Gas
-128,0,  79,187,160,  122,190,80,    76,49,      128,0,0,   198,118,
-2017-10-13 22:52:14 T: 26.70 degC, P: 1011.77 hPa, H: 49.58 %rH , G: 103197 ohms
-"""
+# Up to 10 heater profiles can be configured, each
+# with their own temperature and duration.
+# sensor.set_gas_heater_profile(200, 150, nb_profile=1)
+# sensor.select_gas_heater_profile(1)
 
-regs = [128,0,  79,186,144,  122,185,64,    76,59,      128,0,0,   220,120]
-vals = [26.67, 1011.79, 49.64, 24487]
+print("\n\nPolling:")
+try:
+    while True:
+        if sensor.get_sensor_data():
 
-adc_pres = (regs[2] << 12) | (regs[3] << 4) | (regs[4] >> 4)
-adc_temp = (regs[5] << 12) | (regs[6] << 4) | (regs[7] >> 4)
-adc_hum = (regs[8] << 8) | regs[9]
-adc_gas_res = (regs[13] << 2) | (regs[14] >> 6)
-gas_range = regs[14] & bme680.constants.GAS_RANGE_MSK
+            output = "{0:.2f} degC {1:.2f} hPa {2:.3f} %rH".format(sensor.data.temperature, sensor.data.pressure, sensor.data.humidity)
 
-result = sensor._calc_temperature(adc_temp) / 100
-print("Temperature: Raw: {}: {} {}".format(adc_temp, vals[0], result))
+            if sensor.data.heat_stable:
+                print("{0} {1} ohms".format(output, sensor.data.gas_resistance))
+            else:
+                print(output)
 
-result = sensor._calc_pressure(adc_pres)
-print("Pressure:    Raw: {}: {} {}".format(adc_pres, vals[1], result))
+        time.sleep(1)
 
-result = sensor._calc_humidity(adc_hum) / 1000
-print("Humidity:    Raw: {}:  {}% {}%".format(adc_hum, vals[2], result))
+except KeyboardInterrupt:
+    pass
 
-result = sensor._calc_gas_resistance(adc_gas_res, gas_range)
-print("Resistance:  Raw: {}:    {} {}".format(adc_gas_res, vals[3], result))

examples/test.py

@@ -0,0 +1,31 @@
+#!/usr/bin/env python
+import bme680
+import time
+
+print("""Display Temperature, Pressure and Humidity
+
+If you don't need gas readings, then you can read temperature,
+pressure and humidity quickly.
+
+Press Ctrl+C to exit
+
+""")
+
+sensor = bme680.BME680()
+
+sensor.set_humidity_oversample(bme680.OS_2X)
+sensor.set_pressure_oversample(bme680.OS_4X)
+sensor.set_temperature_oversample(bme680.OS_8X)
+sensor.set_filter(bme680.FILTER_SIZE_3)
+
+print("Polling:")
+try:
+    while True:
+        if sensor.get_sensor_data():
+
+            output = "{0:.2f} degC {1:.2f} hPa {2:.3f} %rH".format(sensor.data.temperature, sensor.data.pressure, sensor.data.humidity)
+            print(output)
+
+except KeyboardInterrupt:
+    pass
+