import sys
import time
from Adafruit import ADS1x15
adc = ADS1x15()
################
while True:
v23 = adc.readADCDifferential23(4096, 128)*0.001 #voltage across resistance
v01 = adc.readADCDifferential01(4096, 128)*0.001 #volage across thermistor
Vt = v01 - v23 #voltage across thermistor
I = v23/(10^5) #current
Rt = Vt/I #resistance of thermistor
print(Rt)
print(I)
time.sleep(1)
def signal_handler(signal, frame):
print('You pressed Ctrl+C!')
print(adc.getLastConversionResults() / 1000.0)
adc.stopContinuousConversion()
sys.exit(0)
signal.signal(signal.SIGINT, signal_handler)
# Print 'Press Ctrl+C to exit'
ADS1015 = 0x00 # 12-bit ADC
ADS1115 = 0x01 # 16-bit ADC
# 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=ADS1015)
# start comparator on channel 2 with a thresholdHigh=200mV and low=100mV
# in traditional mode, non-latching, +/-1.024V and 250sps
adc.startSingleEndedComparator(2,
200,
100,
pga=1024,
sps=250,
activeLow=True,
traditionalMode=True,
latching=False,
numReadings=1)
while True:
print(adc.getLastConversionResults() / 1000.0)
