added my own accelerometer interface

shaketune/macros/accelerometer.py

@@ -1,2 +1,40 @@
 #!/usr/bin/env python3
 
+import time
+
+from ..helpers.console_output import ConsoleOutput
+
+
+class Accelerometer:
+    def __init__(self, klipper_accelerometer):
+        self._k_accelerometer = klipper_accelerometer
+
+    def start_measurement(self):
+        if self._k_accelerometer.bg_client is None:
+            self._k_accelerometer.bg_client = self._k_accelerometer.chip.start_internal_client()
+            ConsoleOutput.print('accelerometer measurements started')
+        else:
+            raise ValueError('measurements already started!')
+
+    def stop_measurement(self, name: str = None):
+        if self._k_accelerometer.bg_client is not None:
+            name = name or time.strftime('%Y%m%d_%H%M%S')
+            if not name.replace('-', '').replace('_', '').isalnum():
+                raise ValueError('invalid file name!')
+
+            bg_client = self._k_accelerometer.bg_client
+            self._k_accelerometer.bg_client = None
+            bg_client.finish_measurements()
+
+            filename = f'/tmp/shaketune-{name}.csv'
+            self._write_to_file(bg_client, filename)
+            ConsoleOutput.print(f'Measurements stopped. Data written to {filename}')
+        else:
+            raise ValueError('measurements need to be started first!')
+
+    def _write_to_file(self, bg_client, filename):
+        with open(filename, 'w') as f:
+            f.write('#time,accel_x,accel_y,accel_z\n')
+            samples = bg_client.samples or bg_client.get_samples()
+            for t, accel_x, accel_y, accel_z in samples:
+                f.write('%.6f,%.6f,%.6f,%.6f\n' % (t, accel_x, accel_y, accel_z))