ads1220: Add ADS1220 bulk sensor to load_cell

Add support for the ADS1220 as an alternative to HX71x that supports SPI and higher sample rates.

Signed-off-by: Gareth Farrington <gareth@waves.ky>

klippy/extras/load_cell.py

@@ -4,6 +4,7 @@
 #
 # This file may be distributed under the terms of the GNU GPLv3 license.
 from . import hx71x
+from . import ads1220
 
 # Printer class that controls a load cell
 class LoadCell:
@@ -29,6 +30,7 @@ def load_config(config):
     # Sensor types
     sensors = {}
     sensors.update(hx71x.HX71X_SENSOR_TYPES)
+    sensors.update(ads1220.ADS1220_SENSOR_TYPE)
     sensor_class = config.getchoice('sensor_type', sensors)
     return LoadCell(config, sensor_class(config))