def __init__(self, test=False):
ADS1115 = int(settings["ADS1115"]) # 16-bit ADC
ADS1115_ADDRESS = int(settings["ADS1115_ADDRESS"], 16)
ADS1115_GAIN = float(settings["ADS1115_GAIN"])
ADS1115_SPS = int(settings["ADS1115_SPS"])
self.REFERENTIAL_VOLTAGE = float(settings["REFERENTIAL_VOLTAGE"])
self.gain = int(ADS1115_GAIN)
self.sps = int(ADS1115_SPS)
# Select the sample rate
self.sps = 250 # 250 samples per second
# Initialise the ADC using the default mode (use default I2C address)
# Set this to ADS1015 or ADS1115 depending on the ADC you are using!
self.ads1115 = ADS1x15(ic=ADS1115, address=ADS1115_ADDRESS)
self.instaneousWindDirection = 0
self._windDirectionQueue = []
self._windDirectionHistoryInterval = 60 * 10 # 10 minutes
self.readWindDirection()
if test == False:
# start wind reading thread
self.th = Thread(target=self.startReadingWind)
self.th.daemon = True
self.th.start()
sys.path.append('./SDL_Pi_GroveDigitalExtender')
from SDL_Adafruit_ADS1x15 import ADS1x15
import extendedPlants
import RPi.GPIO as GPIO
################
#4 Channel ADC ADS1115 setup Plant #1
################
# Set this to ADS1015 or ADS1115 depending on the ADC you are using!
ADS1115 = 0x01 # 16-bit ADC
ads1115 = ADS1x15(ic=ADS1115, address=0x48)
# Select the gain
gain = 6144 # +/- 6.144V
#gain = 4096 # +/- 4.096V
# Select the sample rate
sps = 250 # 250 samples per second
# determine if device present
try:
value = ads1115.readRaw(0, gain, sps) # AIN0 wired to AirQuality Sensor
time.sleep(1.0)
value = ads1115.readRaw(0, gain, sps) # AIN0 wired to AirQuality Sensor
config.ADS1115_Present = True
display = Adafruit_SSD1306.SSD1306_128_64(rst=RST, i2c_address=0x3C)
# Initialize library.
display.begin()
display.clear()
display.display()
config.OLED_Present = True
except:
config.OLED_Present = False
################
#4 Channel ADC ADS1115 setup
################
# Set this to ADS1015 or ADS1115 depending on the ADC you are using!
ADS1115 = 0x01 # 16-bit ADC
ads1115 = ADS1x15(ic=ADS1115, address=0x48)
# Select the gain
gain = 6144 # +/- 6.144V
#gain = 4096 # +/- 4.096V
# Select the sample rate
sps = 250 # 250 samples per second
# determine if device present
try:
value = ads1115.readRaw(0, gain, sps) # AIN0 wired to AirQuality Sensor
time.sleep(1.0)
value = ads1115.readRaw(0, gain, sps) # AIN0 wired to AirQuality Sensor
config.ADS1115_Present = True
# gain = 512 # +/- 0.512V
# gain = 256 # +/- 0.256V
# Select the sample rate
# sps = 8 # 8 samples per second
# sps = 16 # 16 samples per second
# sps = 32 # 32 samples per second
# sps = 64 # 64 samples per second
# sps = 128 # 128 samples per second
sps = 250 # 250 samples per second
# sps = 475 # 475 samples per second
# sps = 860 # 860 samples per second
# Initialise the ADC using the default mode (use default I2C address)
# Set this to ADS1015 or ADS1115 depending on the ADC you are using!
adc = ADS1x15(ic=ADS1115)
while (1):
# Read channel 1 in single-ended mode using the settings above
print ("channel 0")
volts = adc.readADCSingleEnded(0, gain, sps) / 1000
print "%.6f" % (volts)
time.sleep(0.5)
print ("channel 1")
# To read channel 3 in single-ended mode, +/- 1.024V, 860 sps use:
volts = adc.readADCSingleEnded(1, gain, sps) / 1000
print "%.6f" % (volts)
time.sleep(0.5)
def __init__(self, pinAnem, pinRain, intAnem, intRain, ADMode):
GPIO.setup(pinAnem, GPIO.IN)
GPIO.setup(pinRain, GPIO.IN)
# when a falling edge is detected on port pinAnem, regardless of whatever
# else is happening in the program, the function callback will be run
#GPIO.add_event_detect(pinAnem, GPIO.RISING, callback=self.serviceInterruptAnem)
#GPIO.add_event_detect(pinRain, GPIO.RISING, callback=self.serviceInterruptRain)
GPIO.add_event_detect(pinAnem,
GPIO.RISING,
callback=self.serviceInterruptAnem,
bouncetime=40)
GPIO.add_event_detect(pinRain,
GPIO.RISING,
callback=self.serviceInterruptRain,
bouncetime=40)
ADS1015 = 0x00 # 12-bit ADC
ADS1115 = 0x01 # 16-bit ADC
# Select the gain
self.gain = 6144 # +/- 6.144V
#self.gain = 4096 # +/- 4.096V
# Select the sample rate
self.sps = 250 # 250 samples per second
# Initialise the ADC using the default mode (use default I2C address)
# Set this to ADS1015 or ADS1115 depending on the ADC you are using!
self.ads1015 = ADS1x15(ic=ADS1015, address=0x48)
# determine if device present
try:
value = self.ads1015.readRaw(
1, self.gain,
self.sps) # AIN1 wired to wind vane on WeatherPiArduino
time_.sleep(1.0)
value = self.ads1015.readRaw(
1, self.gain,
self.sps) # AIN1 wired to wind vane on WeatherPiArduino
# now figure out if it is an ADS1015 or ADS1115
if ((0x0F & value) == 0):
config.ADS1015_Present = True
config.ADS1115_Present = False
# check again (1 out 16 chance of zero)
value = self.ads1015.readRaw(
0, self.gain,
self.sps) # AIN1 wired to wind vane on WeatherPiArduino
if ((0x0F & value) == 0):
config.ADS1015_Present = True
config.ADS1115_Present = False
else:
config.ADS1015_Present = False
config.ADS1115_Present = True
self.ads1015 = ADS1x15(ic=ADS1115, address=0x48)
else:
config.ADS1015_Present = False
config.ADS1115_Present = True
self.ads1015 = ADS1x15(ic=ADS1115, address=0x48)
except TypeError as e:
print "Type Error"
config.ADS1015_Present = False
config.ADS1115_Present = False
SDL_Pi_WeatherRack._ADMode = ADMode
