added updated examples

Author: siddacious

.gitignore

@@ -9,4 +9,5 @@ bundles
 *.DS_Store
 .eggs
 dist
-**/*.egg-info
+**/*.egg-info
+.vscode/

README.rst

@@ -63,16 +63,42 @@ Usage Example
     import adafruit_ds3502
     from analogio import AnalogIn
 
+    ####### NOTE ################
+    # this example will not work with Blinka/rasberry Pi due to the lack of analog pins.
+    # Blinka and Raspberry Pi users should run the "ds3502_blinka_simpletest.py" example
+
     i2c = board.I2C()
     ds3502 = adafruit_ds3502.DS3502(i2c)
     wiper_output = AnalogIn(board.A0)
 
-    ds3502.wiper = 127
-    print("Wiper value: %d"%wiper_output.value)
-    sleep(1.0)
-
-    ds3502.wiper = 0
-    print("Wiper value: %d"%wiper_output.value)
+    while True:
+
+        ds3502.wiper = 127
+        print("Wiper set to %d"%ds3502.wiper)
+        voltage = wiper_output.value
+        voltage *= 3.3
+        voltage /= 65535
+        print("Wiper voltage: %.2f"%voltage)
+        print("")
+        sleep(1.0)
+        
+        ds3502.wiper = 0
+        print("Wiper set to %d"%ds3502.wiper)
+        voltage = wiper_output.value
+        voltage *= 3.3
+        voltage /= 65535
+        print("Wiper voltage: %.2f"%voltage)
+        print("")
+        sleep(1.0)
+
+        ds3502.wiper = 63
+        print("Wiper set to %d"%ds3502.wiper)
+        voltage = wiper_output.value
+        voltage *= 3.3
+        voltage /= 65535
+        print("Wiper voltage: %.2f"%voltage)
+        print("")
+        sleep(1.0)
 
 
 Contributing

examples/ds3502_blinka_simpletest.py

@@ -0,0 +1,21 @@
+from time import sleep
+import board
+import adafruit_ds3502
+
+i2c = board.I2C()
+ds3502 = adafruit_ds3502.DS3502(i2c)
+
+# As this code runs, measure the voltage between ground and the RW (wiper) pin
+# with a multimeter. You should see the voltage change with each print statement.
+while True:
+    ds3502.wiper = 127
+    print("Wiper value set to 127")
+    sleep(5.0)
+
+    ds3502.wiper = 0
+    print("Wiper value set to 0")
+    sleep(5.0)
+
+    ds3502.wiper = 63
+    print("Wiper value set to 63")
+    sleep(5.0)

examples/ds3502_set_default.py

@@ -0,0 +1,15 @@
+from time import sleep
+import board
+import adafruit_ds3502
+from analogio import AnalogIn
+
+i2c = board.I2C()
+ds3502 = adafruit_ds3502.DS3502(i2c)
+wiper_output = AnalogIn(board.A0)
+
+ds3502.wiper = 127
+print("Wiper value: %d"%wiper_output.value)
+sleep(1.0)
+
+ds3502.wiper = 0
+print("Wiper value: %d"%wiper_output.value)

examples/ds3502_simpletest.py

@@ -3,13 +3,40 @@
 import adafruit_ds3502
 from analogio import AnalogIn
 
+####### NOTE ################
+# this example will not work with Blinka/rasberry Pi due to the lack of analog pins.
+# Blinka and Raspberry Pi users should run the "ds3502_blinka_simpletest.py" example
+
 i2c = board.I2C()
 ds3502 = adafruit_ds3502.DS3502(i2c)
 wiper_output = AnalogIn(board.A0)
 
-ds3502.wiper = 127
-print("Wiper value: %d"%wiper_output.value)
-sleep(1.0)
+while True:
+
+    ds3502.wiper = 127
+    print("Wiper set to %d"%ds3502.wiper)
+    voltage = wiper_output.value
+    voltage *= 3.3
+    voltage /= 65535
+    print("Wiper voltage: %.2f"%voltage)
+    print("")
+    sleep(1.0)
+    
+    ds3502.wiper = 0
+    print("Wiper set to %d"%ds3502.wiper)
+    voltage = wiper_output.value
+    voltage *= 3.3
+    voltage /= 65535
+    print("Wiper voltage: %.2f"%voltage)
+    print("")
+    sleep(1.0)
 
-ds3502.wiper = 0
-print("Wiper value: %d"%wiper_output.value)
+    ds3502.wiper = 63
+    print("Wiper set to %d"%ds3502.wiper)
+    voltage = wiper_output.value
+    voltage *= 3.3
+    voltage /= 65535
+    print("Wiper voltage: %.2f"%voltage)
+    print("")
+    sleep(1.0)
+