Merge pull request #13 from adafruit/MCP4728A4_update

Updating for MCP4728A4

Author: tekktrik

adafruit_mcp4728.py

@@ -32,7 +32,9 @@
 from time import sleep
 from adafruit_bus_device import i2c_device
 
-_MCP4728_DEFAULT_ADDRESS = 0x60
+MCP4728_DEFAULT_ADDRESS = 0x60
+
+MCP4728A4_DEFAULT_ADDRESS = 0x64
 
 _MCP4728_CH_A_MULTI_EEPROM = 0x50
 
@@ -115,7 +117,7 @@ class MCP4728:
 
     """
 
-    def __init__(self, i2c_bus, address=_MCP4728_DEFAULT_ADDRESS):
+    def __init__(self, i2c_bus, address: int = MCP4728_DEFAULT_ADDRESS):
 
         self.i2c_device = i2c_device.I2CDevice(i2c_bus, address)
 

examples/mcp4728_generalcalltest.py

@@ -13,6 +13,7 @@
 mcp4728.channel_d.value = 0  # 0V
 
 mcp4728.save_settings()  # save current voltages into EEPROM
+
 print("Settings Saved into EEPROM")
 
 input("Press Enter to modify the channel outputs...")

examples/mcp4728_simpletest.py

@@ -4,8 +4,14 @@
 import board
 import adafruit_mcp4728
 
+MCP4728_DEFAULT_ADDRESS = 0x60
+MCP4728A4_DEFAULT_ADDRESS = 0x64
+
 i2c = board.I2C()  # uses board.SCL and board.SDA
-mcp4728 = adafruit_mcp4728.MCP4728(i2c)
+#  use for MCP4728 variant
+mcp4728 = adafruit_mcp4728.MCP4728(i2c, adafruit_mcp4728.MCP4728_DEFAULT_ADDRESS)
+#  use for MCP4728A4 variant
+#  mcp4728 = adafruit_mcp4728.MCP4728(i2c, adafruit_mcp4728.MCP4728A4_DEFAULT_ADDRESS)
 
 mcp4728.channel_a.value = 65535  # Voltage = VDD
 mcp4728.channel_b.value = int(65535 / 2)  # VDD/2