def test_get_calibrated_values():
"""Test against fake calibrated values stored in hardware mock."""
_setup()
values = as7262.get_calibrated_values()
# Deal with floating point nonsense
values = [round(x, 1) for x in values]
assert values == CALIBRATED_VALUES
def read_color(self):
white_thress = 550
black_thress = 50
try:
as7262.soft_reset()
hw_code, hw_version, fw_version = as7262.get_version()
as7262.set_gain(2)
as7262.set_integration_time(0.1)
as7262.set_measurement_mode(3)
as7262.set_illumination_led(1)
values = as7262.get_calibrated_values()
as7262.set_measurement_mode(3)
as7262.set_illumination_led(0)
string = ("{},{},{},{},{},{}").format(*values)
colors = string.split(",")
r = float(colors[0])
o = float(colors[1])
y = float(colors[2])
g = float(colors[3])
b = float(colors[4])
v = float(colors[5])
float_colors = list(map(float, colors))
max_c = max(float_colors)
max_s = 'RED'
if o == max_c:
max_c = o
max_s = 'RED' #'ORANGE'
elif r == max_c:
max_c = r
max_s = 'RED' #'RED'
elif y == max_c:
max_c = y
max_s = 'YELLOW'
elif g == max_c:
max_c = g
max_s = 'GREEN'
elif b == max_c:
max_c = b
max_s = 'BLUE'
elif v == max_c:
max_c = v
max_s = 'BLUE' #'VIOLET'
mean = statistics.mean(float_colors)
if mean < black_thress:
max_s = 'BLACK'
elif mean > white_thress:
max_s = 'WHITE'
self.dictionary["color"] = max_s
except:
self.infologger.write_error("Error: I2C: reading color.")
self.master.status_vector["INFRARED"] = 0
self.dictionary["color"] = None
as7262.soft_reset()
as7262.set_gain(64)
as7262.set_integration_time(17.857)
as7262.set_measurement_mode(2)
as7262.set_illumination_led(1)
try:
input = raw_input
except NameError:
pass
input(
"Setting white point baseline.\n\nHold a white sheet of paper ~5cm in front of the sensor and press a key...\n"
)
baseline = as7262.get_calibrated_values()
time.sleep(1)
input("Baseline set. Press a key to continue...\n")
sys.stdout.flush()
try:
while True:
values = as7262.get_calibrated_values()
values = [
int(x / y * MAX_VALUE)
for x, y in zip(list(values), list(baseline))
]
values = [
int(min(value, MAX_VALUE) / MAX_VALUE * BAR_WIDTH)
for value in values
]
humidity = ((data0 * 256 + data1) * 125 / 65536.0) - 6
time.sleep(0.3)
bus.write_byte(SI7021_BUS_ADDR, TEMP_INST)
time.sleep(0.3)
data0 = bus.read_byte(SI7021_BUS_ADDR)
data1 = bus.read_byte(SI7021_BUS_ADDR)
temperature = ((data0 * 256 + data1) * 175.72 / 65536.0) - 46.85
######## Retrieving spectral data
values = as7262.get_calibrated_values()
######## Publishing data to MQTT broker
message = json.dumps({
"date":
datetime.datetime.now().strftime("%Y%m%d%H%M%S"),
"red":
values.red,
"orange":
values.orange,
"yellow":
values.yellow,
"green":
values.green,
"blue":
values.blue,