added examples

examples/ads1115_differential.py

@@ -0,0 +1,27 @@
+import time
+import board
+import busio
+from adafruit_ads1x15.differential import ADS1115
+
+# Create the I2C bus
+i2c = busio.I2C(board.SCL, board.SDA)
+
+# Create the ADC object using the I2C bus
+adc = ADS1115(i2c)
+
+# Print header
+print("CHAN 0 - CHAN 1")
+print("{:>5}\t{:>5}".format('raw', 'v'))
+
+while True:
+    # Get raw reading for differential input between channel 0 and 1
+    raw = adc[(0, 1)].value
+
+    # Get voltage reading for differential input between channel 0 and 1
+    volts = adc[(0, 1)].volts
+
+    # Print results
+    print("{:>5}\t{:>5.3f}".format(raw, volts))
+
+    # Sleep for a bit
+    time.sleep(0.5)

examples/ads1115_single_ended.py

@@ -0,0 +1,35 @@
+import time
+import board
+import busio
+from adafruit_ads1x15.single_ended import ADS1115
+
+# Create the I2C bus
+i2c = busio.I2C(board.SCL, board.SDA)
+
+# Create the ADC object using the I2C bus
+adc = ADS1115(i2c)
+
+# Print header
+print("    CHAN 0          CHAN 1          CHAN 2          CHAN 3")
+print("{:>5}\t{:>5}\t{:>5}\t{:>5}\t{:>5}\t{:>5}\t{:>5}\t{:>5}"
+      .format('raw', 'v', 'raw', 'v', 'raw', 'v', 'raw', 'v'))
+
+while True:
+    # Get raw readings for each channel
+    r0 = adc[0].value
+    r1 = adc[1].value
+    r2 = adc[2].value
+    r3 = adc[3].value
+
+    # Get voltage readings for each channel
+    v0 = adc[0].volts
+    v1 = adc[1].volts
+    v2 = adc[2].volts
+    v3 = adc[3].volts
+
+    # Print results
+    print("{:>5}\t{:>5.3f}\t{:>5}\t{:>5.3f}\t{:>5}\t{:>5.3f}\t{:>5}\t{:>5.3f}"
+          .format(r0, v0, r1, v1, r2, v2, r3, v3))
+
+    # Sleep for a bit
+    time.sleep(0.5)