update docs

Author: CedarGroveStudios

cedargrove_ad5293.py

@@ -44,8 +44,11 @@ class AD5293:
     placed on any of the three pins not exceed the analog power supply voltage.
 
     The CircuitPython driver supports a single SPI potentiometer device per
-    instance. It does not work with daisy-chained devices. The SDO pin is
-    set to high-impedance.
+    instance. Connecting the SDO pin to the SPI host input pin is not required
+    nor recommended since the SDO pin could interfere with other SPI-connected
+    devices.
+
+    This driver does not work with daisy-chained devices.
 
     The Cedar Grove AD5293 custom breakout board provides power and signal
     connections for SPI and the potentiometer chip. The AD5293 is also used in
@@ -72,10 +75,6 @@ def __init__(self, spi=board.SPI(), select=board.D9, wiper=0):
         # Power on delay (2ms minimum)
         time.sleep(0.03)
 
-        # Disable SDO pin (high impedance)
-        self._send_data(0x8001)  # Disable SDO
-        self._send_data(0x0000)  # NOP
-
         # Place device into normal mode (not powered-down)
         self._send_data(0x2000)