1  import time
 2  import board
 3  import busio
 4  import adafruit_ads1x15.ads1015 as ADS
 5  from adafruit_ads1x15.ads1x15 import Mode
 6  from adafruit_ads1x15.analog_in import AnalogIn
 7  
 8  # Data collection setup
 9  RATE = 3300
10  SAMPLES = 1000
11  
12  # Create the I2C bus with a fast frequency
13  i2c = busio.I2C(board.SCL, board.SDA, frequency=1000000)
14  
15  # Create the ADC object using the I2C bus
16  ads = ADS.ADS1015(i2c)
17  
18  # Create single-ended input on channel 0
19  chan0 = AnalogIn(ads, ADS.P0)
20  
21  # ADC Configuration
22  ads.mode = Mode.CONTINUOUS
23  ads.data_rate = RATE
24  
25  data = [None] * SAMPLES
26  
27  start = time.monotonic()
28  
29  # Read the same channel over and over
30  for i in range(SAMPLES):
31      data[i] = chan0.value
32  
33  end = time.monotonic()
34  total_time = end - start
35  
36  print("Time of capture: {}s".format(total_time))
37  print("Sample rate requested={} actual={}".format(RATE, SAMPLES / total_time))