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diff --git a/movement/watch_faces/demo/lis2dh_logging_face.h b/movement/watch_faces/demo/lis2dh_logging_face.h
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+/*
+ * MIT License
+ *
+ * Copyright (c) 2022 Joey Castillo
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#ifndef LIS2DH_LOGGING_FACE_H_
+#define LIS2DH_LOGGING_FACE_H_
+
+#include "movement.h"
+#include "watch.h"
+
+#define LIS2DH_LOGGING_NUM_DATA_POINTS (96)
+
+typedef struct {
+    watch_date_time timestamp;
+    uint32_t x_interrupts;
+    uint32_t y_interrupts;
+    uint32_t z_interrupts;
+} lis2dh_logger_data_point_t;
+
+typedef struct {
+    uint8_t display_index;  // the index we are displaying on screen
+    uint8_t axis_index;     // the index we are displaying on screen
+    uint8_t log_ticks;      // when the user taps the ALARM button, we enter log mode
+    int32_t data_points;    // the absolute number of data points logged
+    uint8_t interrupts[3];  // the number of interrupts we have logged in each of the last 3 minutes
+    uint32_t x_interrupts_this_hour;  // the number of interrupts we have logged in the last hour
+    uint32_t y_interrupts_this_hour;  // the number of interrupts we have logged in the last hour
+    uint32_t z_interrupts_this_hour;  // the number of interrupts we have logged in the last hour
+    lis2dh_logger_data_point_t data[LIS2DH_LOGGING_NUM_DATA_POINTS];
+} lis2dh_logger_state_t;
+
+void lis2dh_logging_face_setup(movement_settings_t *settings, uint8_t watch_face_index, void ** context_ptr);
+void lis2dh_logging_face_activate(movement_settings_t *settings, void *context);
+bool lis2dh_logging_face_loop(movement_event_t event, movement_settings_t *settings, void *context);
+void lis2dh_logging_face_resign(movement_settings_t *settings, void *context);
+bool lis2dh_logging_face_wants_background_task(movement_settings_t *settings, void *context);
+
+#define lis2dh_logging_face ((const watch_face_t){ \
+    lis2dh_logging_face_setup, \
+    lis2dh_logging_face_activate, \
+    lis2dh_logging_face_loop, \
+    lis2dh_logging_face_resign, \
+    lis2dh_logging_face_wants_background_task, \
+})
+
+#endif // LIS2DH_LOGGING_FACE_H_