more oversampling with the new firmware

CHANGELOG.md

@@ -2,6 +2,7 @@
 
 
 #### Enhancements
+ - new RP2040 firmware improvements => less noise in OD readings
  - Improved chart colors in the UI
  - The OD reading CLI has a new option, `--snapshot`, that will start the job, take a single reading, and exit. This is useful for scripting purposes.
  - A new CLI for pumps: `pio run pumps`. Add pumps as options:

pioreactor/background_jobs/od_reading.py

@@ -123,7 +123,7 @@ def __init__(
         fake_data: bool = False,
         dynamic_gain: bool = True,
         penalizer: float = 0.0,  # smoothing parameter between samples
-        oversampling_count: int = 32,
+        oversampling_count: int = 42,
     ) -> None:
         super().__init__()
         self.fake_data = fake_data

pioreactor/calibrations/stirring_calibration.py

@@ -67,7 +67,7 @@ def run_stirring_calibration(
                 max_dc + min_dc
             ) / 2  # we start with a somewhat low value, s.t. the stir bar is caught.
             st.start_stirring()
-            sleep(8)
+            sleep(5)
 
             for count, dc in enumerate(dcs, start=1):
                 st.set_duty_cycle(dc)

pioreactor/structs.py

@@ -164,9 +164,14 @@ def calibration_type(self):
 
     def save_to_disk_for_device(self, device: str) -> str:
         from pioreactor.calibrations import CALIBRATION_PATH
+        import shutil
 
         calibration_dir = CALIBRATION_PATH / device
         calibration_dir.mkdir(parents=True, exist_ok=True)
+
+        # Set ownership to pioreactor:www-data using shutil
+        shutil.chown(calibration_dir, user="pioreactor", group="www-data")
+
         out_file = calibration_dir / f"{self.calibration_name}.yaml"
 
         # Serialize to YAML