example_detector_presence_low_power_off.c
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1 // Copyright (c) Acconeer AB, 2022-2025
2 // All rights reserved
3 // This file is subject to the terms and conditions defined in the file
4 // 'LICENSES/license_acconeer.txt', (BSD 3-Clause License) which is part
5 // of this source code package.
6
7 #include <stdbool.h>
8 #include <stdint.h>
9 #include <stdio.h>
10 #include <stdlib.h>
11
12 #include "acc_definitions_a121.h"
13 #include "acc_definitions_common.h"
14 #include "acc_detector_presence.h"
15 #include "acc_hal_definitions_a121.h"
16 #include "acc_hal_integration_a121.h"
17 #include "acc_integration.h"
18 #include "acc_rss_a121.h"
19 #include "acc_sensor.h"
20
21 #include "acc_version.h"
22
23 /** \example example_detector_presence_low_power_off.c
24 * @brief This is an example on how to disable the sensor and put the system in a low power state between measurements
25 * @n
26 * The example executes as follows:
27 * - Create a presence configuration
28 * - Create a sensor instance
29 * - Enable sensor
30 * - Create a detector instance
31 * - Calibrate the sensor
32 * - Prepare the detector
33 * - Loop forever:
34 * - Enable sensor
35 * - Prepare a sensor
36 * - Perform a sensor measurement and read out the data
37 * - Disable sensor
38 * - Process the measurement and get detector result
39 * - Put the system in deep sleep for a specified amount of time
40 * - Destroy the configuration
41 * - Destroy the detector instance
42 * - Destroy the sensor instance
43 */
44
45 typedef enum
46 {
47 PRESENCE_PRESET_CONFIG_NONE = 0,
48 PRESENCE_PRESET_CONFIG_SHORT_RANGE,
49 PRESENCE_PRESET_CONFIG_MEDIUM_RANGE,
50 PRESENCE_PRESET_CONFIG_LONG_RANGE,
51 PRESENCE_PRESET_CONFIG_LOW_POWER_WAKEUP,
52 } presence_preset_config_t;
53
54 #define SENSOR_ID (1U)
55 #define SENSOR_TIMEOUT_MS (1000U)
56
57 #define DEFAULT_PRESET_CONFIG PRESENCE_PRESET_CONFIG_MEDIUM_RANGE
58
59 static bool do_sensor_calibration(acc_sensor_t *sensor, acc_cal_result_t *cal_result, void *buffer, uint32_t buffer_size);
60
61 static void print_result(acc_detector_presence_result_t *result);
62
63 static void cleanup(acc_detector_presence_handle_t *presence_handle,
64 acc_detector_presence_config_t *presence_config,
65 acc_sensor_t *sensor,
66 void *buffer);
67
68 static void set_config(acc_detector_presence_config_t *presence_config, presence_preset_config_t preset);
69
70 int acconeer_main(int argc, char *argv[]);
71
72 int acconeer_main(int argc, char *argv[])
73 {
74 (void)argc;
75 (void)argv;
76 acc_detector_presence_config_t *presence_config = NULL;
77 acc_detector_presence_handle_t *presence_handle = NULL;
78 acc_detector_presence_metadata_t metadata;
79 acc_sensor_t *sensor = NULL;
80 void *buffer = NULL;
81 uint32_t buffer_size = 0U;
82
83 printf("Acconeer software version %s\n", acc_version_get());
84
85 const acc_hal_a121_t *hal = acc_hal_rss_integration_get_implementation();
86
87 if (!acc_rss_hal_register(hal))
88 {
89 return EXIT_FAILURE;
90 }
91
92 presence_config = acc_detector_presence_config_create();
93 if (presence_config == NULL)
94 {
95 printf("acc_detector_presence_config_create() failed\n");
96 cleanup(presence_handle, presence_config, sensor, buffer);
97 return EXIT_FAILURE;
98 }
99
100 set_config(presence_config, DEFAULT_PRESET_CONFIG);
101
102 uint32_t sleep_time_ms = (uint32_t)(1000.0f / acc_detector_presence_config_frame_rate_get(presence_config));
103
104 acc_integration_set_periodic_wakeup(sleep_time_ms);
105
106 presence_handle = acc_detector_presence_create(presence_config, &metadata);
107 if (presence_handle == NULL)
108 {
109 printf("acc_detector_presence_create() failed\n");
110 cleanup(presence_handle, presence_config, sensor, buffer);
111 return EXIT_FAILURE;
112 }
113
114 if (!acc_detector_presence_get_buffer_size(presence_handle, &buffer_size))
115 {
116 printf("acc_detector_presence_get_buffer_size() failed\n");
117 cleanup(presence_handle, presence_config, sensor, buffer);
118 return EXIT_FAILURE;
119 }
120
121 buffer = acc_integration_mem_alloc(buffer_size);
122 if (buffer == NULL)
123 {
124 printf("buffer allocation failed\n");
125 cleanup(presence_handle, presence_config, sensor, buffer);
126 return EXIT_FAILURE;
127 }
128
129 acc_hal_integration_sensor_supply_on(SENSOR_ID);
130 acc_hal_integration_sensor_enable(SENSOR_ID);
131
132 sensor = acc_sensor_create(SENSOR_ID);
133 if (sensor == NULL)
134 {
135 printf("acc_sensor_create() failed\n");
136 cleanup(presence_handle, presence_config, sensor, buffer);
137 return EXIT_FAILURE;
138 }
139
140 acc_cal_result_t cal_result;
141
142 if (!do_sensor_calibration(sensor, &cal_result, buffer, buffer_size))
143 {
144 printf("do_sensor_calibration() failed\n");
145 cleanup(presence_handle, presence_config, sensor, buffer);
146 return EXIT_FAILURE;
147 }
148
149 // Reset sensor after calibration by disabling it
150 acc_hal_integration_sensor_disable(SENSOR_ID);
151
152 while (true)
153 {
154 acc_detector_presence_result_t result;
155
156 acc_hal_integration_sensor_enable(SENSOR_ID);
157 if (!acc_detector_presence_prepare(presence_handle, presence_config, sensor, &cal_result, buffer, buffer_size))
158 {
159 printf("acc_detector_presence_prepare() failed\n");
160 cleanup(presence_handle, presence_config, sensor, buffer);
161 return EXIT_FAILURE;
162 }
163
164 if (!acc_sensor_measure(sensor))
165 {
166 printf("acc_sensor_measure failed\n");
167 cleanup(presence_handle, presence_config, sensor, buffer);
168 return EXIT_FAILURE;
169 }
170
171 if (!acc_hal_integration_wait_for_sensor_interrupt(SENSOR_ID, SENSOR_TIMEOUT_MS))
172 {
173 printf("Sensor interrupt timeout\n");
174 cleanup(presence_handle, presence_config, sensor, buffer);
175 return EXIT_FAILURE;
176 }
177
178 if (!acc_sensor_read(sensor, buffer, buffer_size))
179 {
180 printf("acc_sensor_read failed\n");
181 cleanup(presence_handle, presence_config, sensor, buffer);
182 return EXIT_FAILURE;
183 }
184
185 acc_hal_integration_sensor_disable(SENSOR_ID);
186
187 if (!acc_detector_presence_process(presence_handle, buffer, &result))
188 {
189 printf("acc_detector_presence_process failed\n");
190 cleanup(presence_handle, presence_config, sensor, buffer);
191 return EXIT_FAILURE;
192 }
193
194 /* If "calibration_needed" is indicated, the sensor needs to be recalibrated. */
195 if (result.processing_result.calibration_needed)
196 {
197 printf("Sensor recalibration needed ... \n");
198
199 acc_hal_integration_sensor_enable(SENSOR_ID);
200
201 if (!do_sensor_calibration(sensor, &cal_result, buffer, buffer_size))
202 {
203 printf("do_sensor_calibration() failed\n");
204 cleanup(presence_handle, presence_config, sensor, buffer);
205 return EXIT_FAILURE;
206 }
207
208 printf("Sensor recalibration done!\n");
209
210 acc_hal_integration_sensor_disable(SENSOR_ID);
211 }
212 else
213 {
214 print_result(&result);
215 }
216
217 acc_integration_sleep_until_periodic_wakeup();
218 }
219
220 cleanup(presence_handle, presence_config, sensor, buffer);
221
222 printf("Application finished OK\n");
223
224 return EXIT_SUCCESS;
225 }
226
227 static void cleanup(acc_detector_presence_handle_t *presence_handle,
228 acc_detector_presence_config_t *presence_config,
229 acc_sensor_t *sensor,
230 void *buffer)
231 {
232 acc_hal_integration_sensor_disable(SENSOR_ID);
233 acc_hal_integration_sensor_supply_off(SENSOR_ID);
234
235 if (presence_config != NULL)
236 {
237 acc_detector_presence_config_destroy(presence_config);
238 }
239
240 if (presence_handle != NULL)
241 {
242 acc_detector_presence_destroy(presence_handle);
243 }
244
245 if (sensor != NULL)
246 {
247 acc_sensor_destroy(sensor);
248 }
249
250 if (buffer != NULL)
251 {
252 acc_integration_mem_free(buffer);
253 }
254 }
255
256 static void set_config(acc_detector_presence_config_t *presence_config, presence_preset_config_t preset)
257 {
258 switch (preset)
259 {
260 case PRESENCE_PRESET_CONFIG_NONE:
261 acc_detector_presence_config_frame_rate_app_driven_set(presence_config, true);
262 // Add configuration of the detector here
263 break;
264
265 case PRESENCE_PRESET_CONFIG_SHORT_RANGE:
266 acc_detector_presence_config_start_set(presence_config, 0.06f);
267 acc_detector_presence_config_end_set(presence_config, 1.0f);
268 acc_detector_presence_config_automatic_subsweeps_set(presence_config, true);
269 acc_detector_presence_config_signal_quality_set(presence_config, 30.0f);
270 acc_detector_presence_config_inter_frame_idle_state_set(presence_config, ACC_CONFIG_IDLE_STATE_DEEP_SLEEP);
271 acc_detector_presence_config_sweeps_per_frame_set(presence_config, 16);
272 acc_detector_presence_config_frame_rate_set(presence_config, 10.0f);
273 acc_detector_presence_config_frame_rate_app_driven_set(presence_config, true);
274 acc_detector_presence_config_reset_filters_on_prepare_set(presence_config, true);
275 acc_detector_presence_config_intra_detection_set(presence_config, true);
276 acc_detector_presence_config_intra_detection_threshold_set(presence_config, 1.4f);
277 acc_detector_presence_config_intra_frame_time_const_set(presence_config, 0.15f);
278 acc_detector_presence_config_intra_output_time_const_set(presence_config, 0.3f);
279 acc_detector_presence_config_inter_detection_set(presence_config, true);
280 acc_detector_presence_config_inter_detection_threshold_set(presence_config, 1.0f);
281 acc_detector_presence_config_inter_frame_deviation_time_const_set(presence_config, 0.5f);
282 acc_detector_presence_config_inter_frame_fast_cutoff_set(presence_config, 5.0f);
283 acc_detector_presence_config_inter_frame_slow_cutoff_set(presence_config, 0.20f);
284 acc_detector_presence_config_inter_output_time_const_set(presence_config, 2.0f);
285 acc_detector_presence_config_inter_frame_presence_timeout_set(presence_config, 3);
286
287 break;
288
289 case PRESENCE_PRESET_CONFIG_MEDIUM_RANGE:
290 acc_detector_presence_config_start_set(presence_config, 0.3f);
291 acc_detector_presence_config_end_set(presence_config, 2.5f);
292 acc_detector_presence_config_automatic_subsweeps_set(presence_config, true);
293 acc_detector_presence_config_signal_quality_set(presence_config, 20.0f);
294 acc_detector_presence_config_inter_frame_idle_state_set(presence_config, ACC_CONFIG_IDLE_STATE_DEEP_SLEEP);
295 acc_detector_presence_config_sweeps_per_frame_set(presence_config, 16);
296 acc_detector_presence_config_frame_rate_set(presence_config, 12.0f);
297 acc_detector_presence_config_frame_rate_app_driven_set(presence_config, true);
298 acc_detector_presence_config_reset_filters_on_prepare_set(presence_config, true);
299 acc_detector_presence_config_intra_detection_set(presence_config, true);
300 acc_detector_presence_config_intra_detection_threshold_set(presence_config, 1.3f);
301 acc_detector_presence_config_intra_frame_time_const_set(presence_config, 0.15f);
302 acc_detector_presence_config_intra_output_time_const_set(presence_config, 0.3f);
303 acc_detector_presence_config_inter_detection_set(presence_config, true);
304 acc_detector_presence_config_inter_detection_threshold_set(presence_config, 1.0f);
305 acc_detector_presence_config_inter_frame_deviation_time_const_set(presence_config, 0.5f);
306 acc_detector_presence_config_inter_frame_fast_cutoff_set(presence_config, 6.0f);
307 acc_detector_presence_config_inter_frame_slow_cutoff_set(presence_config, 0.20f);
308 acc_detector_presence_config_inter_output_time_const_set(presence_config, 2.0f);
309 acc_detector_presence_config_inter_frame_presence_timeout_set(presence_config, 3);
310
311 break;
312
313 case PRESENCE_PRESET_CONFIG_LONG_RANGE:
314 acc_detector_presence_config_start_set(presence_config, 5.0f);
315 acc_detector_presence_config_end_set(presence_config, 7.5f);
316 acc_detector_presence_config_automatic_subsweeps_set(presence_config, true);
317 acc_detector_presence_config_signal_quality_set(presence_config, 10.0f);
318 acc_detector_presence_config_inter_frame_idle_state_set(presence_config, ACC_CONFIG_IDLE_STATE_DEEP_SLEEP);
319 acc_detector_presence_config_sweeps_per_frame_set(presence_config, 16);
320 acc_detector_presence_config_frame_rate_set(presence_config, 12.0f);
321 acc_detector_presence_config_frame_rate_app_driven_set(presence_config, true);
322 acc_detector_presence_config_reset_filters_on_prepare_set(presence_config, true);
323 acc_detector_presence_config_intra_detection_set(presence_config, true);
324 acc_detector_presence_config_intra_detection_threshold_set(presence_config, 1.2f);
325 acc_detector_presence_config_intra_frame_time_const_set(presence_config, 0.15f);
326 acc_detector_presence_config_intra_output_time_const_set(presence_config, 0.3f);
327 acc_detector_presence_config_inter_detection_set(presence_config, true);
328 acc_detector_presence_config_inter_detection_threshold_set(presence_config, 0.8f);
329 acc_detector_presence_config_inter_frame_deviation_time_const_set(presence_config, 0.5f);
330 acc_detector_presence_config_inter_frame_fast_cutoff_set(presence_config, 6.0f);
331 acc_detector_presence_config_inter_frame_slow_cutoff_set(presence_config, 0.20f);
332 acc_detector_presence_config_inter_output_time_const_set(presence_config, 2.0f);
333 acc_detector_presence_config_inter_frame_presence_timeout_set(presence_config, 3);
334
335 break;
336
337 case PRESENCE_PRESET_CONFIG_LOW_POWER_WAKEUP:
338 acc_detector_presence_config_start_set(presence_config, 0.38f);
339 acc_detector_presence_config_end_set(presence_config, 0.67f);
340 acc_detector_presence_config_automatic_subsweeps_set(presence_config, false);
341 acc_detector_presence_config_auto_step_length_set(presence_config, true);
342 acc_detector_presence_config_auto_profile_set(presence_config, false);
343 acc_detector_presence_config_profile_set(presence_config, ACC_CONFIG_PROFILE_5);
344 acc_detector_presence_config_inter_frame_idle_state_set(presence_config, ACC_CONFIG_IDLE_STATE_DEEP_SLEEP);
345 acc_detector_presence_config_hwaas_set(presence_config, 8);
346 acc_detector_presence_config_sweeps_per_frame_set(presence_config, 8);
347 acc_detector_presence_config_frame_rate_set(presence_config, 0.7f);
348 acc_detector_presence_config_frame_rate_app_driven_set(presence_config, true);
349 acc_detector_presence_config_reset_filters_on_prepare_set(presence_config, true);
350 acc_detector_presence_config_intra_detection_set(presence_config, true);
351 acc_detector_presence_config_intra_detection_threshold_set(presence_config, 1.7f);
352 acc_detector_presence_config_intra_frame_time_const_set(presence_config, 0.3f);
353 acc_detector_presence_config_intra_output_time_const_set(presence_config, 0.3f);
354 acc_detector_presence_config_inter_detection_set(presence_config, true);
355 acc_detector_presence_config_inter_detection_threshold_set(presence_config, 1.2f);
356 acc_detector_presence_config_inter_frame_deviation_time_const_set(presence_config, 0.5f);
357 acc_detector_presence_config_inter_frame_fast_cutoff_set(presence_config, 5.0f);
358 acc_detector_presence_config_inter_frame_slow_cutoff_set(presence_config, 0.20f);
359 acc_detector_presence_config_inter_output_time_const_set(presence_config, 0.5f);
360 acc_detector_presence_config_inter_frame_presence_timeout_set(presence_config, 2);
361
362 break;
363 }
364 }
365
366 static bool do_sensor_calibration(acc_sensor_t *sensor, acc_cal_result_t *cal_result, void *buffer, uint32_t buffer_size)
367 {
368 bool status = false;
369 bool cal_complete = false;
370 const uint16_t calibration_retries = 1U;
371
372 // Random disturbances may cause the calibration to fail. At failure, retry at least once.
373 for (uint16_t i = 0; !status && (i <= calibration_retries); i++)
374 {
375 // Reset sensor before calibration by disabling/enabling it
376 acc_hal_integration_sensor_disable(SENSOR_ID);
377 acc_hal_integration_sensor_enable(SENSOR_ID);
378
379 do
380 {
381 status = acc_sensor_calibrate(sensor, &cal_complete, cal_result, buffer, buffer_size);
382
383 if (status && !cal_complete)
384 {
385 status = acc_hal_integration_wait_for_sensor_interrupt(SENSOR_ID, SENSOR_TIMEOUT_MS);
386 }
387 } while (status && !cal_complete);
388 }
389
390 if (status)
391 {
392 /* Reset sensor after calibration by disabling/enabling it */
393 acc_hal_integration_sensor_disable(SENSOR_ID);
394 acc_hal_integration_sensor_enable(SENSOR_ID);
395 }
396
397 return status;
398 }
399
400 static void print_result(acc_detector_presence_result_t *result)
401 {
402 if (result->presence_detected)
403 {
404 printf("Motion\n");
405 }
406 else
407 {
408 printf("No motion\n");
409 }
410
411 // Score and distance is multiplied by 1000 to avoid printing floats
412 printf("Intra presence score: %d, Inter presence score: %d, Distance (mm): %d\n",
413 (int)(result->intra_presence_score * 1000.0f),
414 (int)(result->inter_presence_score * 1000.0f),
415 (int)(result->presence_distance * 1000.0f));
416 }
acc_detector_presence_config_inter_detection_set
void acc_detector_presence_config_inter_detection_set(acc_detector_presence_config_t *presence_config, bool enable)
Set inter-frame presence detection.
acc_detector_presence_config_sweeps_per_frame_set
void acc_detector_presence_config_sweeps_per_frame_set(acc_detector_presence_config_t *presence_config, uint16_t sweeps_per_frame)
Set the number of sweeps per frame.
PRESENCE_PRESET_CONFIG_NONE
@ PRESENCE_PRESET_CONFIG_NONE
Definition: example_detector_presence_low_power_off.c:47
acc_hal_integration_sensor_supply_off
void acc_hal_integration_sensor_supply_off(acc_sensor_id_t sensor_id)
Power off sensor supply.
Definition: acc_hal_integration_stm32cube_xm.c:104
acc_rss_a121.h
cleanup
static void cleanup(acc_detector_presence_handle_t *presence_handle, acc_detector_presence_config_t *presence_config, acc_sensor_t *sensor, void *buffer)
Definition: example_detector_presence_low_power_off.c:227
cargo_result_t::calibration_needed
bool calibration_needed
Definition: example_cargo.h:112
acc_hal_integration_sensor_supply_on
void acc_hal_integration_sensor_supply_on(acc_sensor_id_t sensor_id)
Power on sensor supply.
Definition: acc_hal_integration_stm32cube_xm.c:99
SENSOR_ID
#define SENSOR_ID
Definition: example_detector_presence_low_power_off.c:54
acc_detector_presence_destroy
void acc_detector_presence_destroy(acc_detector_presence_handle_t *presence_handle)
Destroy a presence detector identified with the provided handle.
acc_detector_presence_config_hwaas_set
void acc_detector_presence_config_hwaas_set(acc_detector_presence_config_t *presence_config, uint16_t hwaas)
Set the hardware accelerated average samples (HWAAS)
acc_sensor_read
bool acc_sensor_read(const acc_sensor_t *sensor, void *buffer, uint32_t buffer_size)
Read out radar data.
buffer
void * buffer
Definition: i2c_example_cargo.c:40
acc_version.h
acc_detector_presence_config_inter_frame_deviation_time_const_set
void acc_detector_presence_config_inter_frame_deviation_time_const_set(acc_detector_presence_config_t *presence_config, float inter_frame_deviation_time_const)
Set the time constant of the low pass filter for the inter-frame deviation between fast and slow.
acc_detector_presence_config_auto_profile_set
void acc_detector_presence_config_auto_profile_set(acc_detector_presence_config_t *presence_config, bool enable)
Enable automatic selection of profile based on start point of measurement.
acc_cal_result_t
The result from a completed calibration.
Definition: acc_definitions_a121.h:30
acc_detector_presence_config_frame_rate_set
void acc_detector_presence_config_frame_rate_set(acc_detector_presence_config_t *presence_config, float frame_rate)
Set the frame rate.
ACC_CONFIG_IDLE_STATE_DEEP_SLEEP
@ ACC_CONFIG_IDLE_STATE_DEEP_SLEEP
Definition: acc_definitions_a121.h:73
ACC_CONFIG_PROFILE_5
@ ACC_CONFIG_PROFILE_5
Definition: acc_definitions_a121.h:57
acc_integration.h
acc_detector_presence_get_buffer_size
bool acc_detector_presence_get_buffer_size(const acc_detector_presence_handle_t *presence_handle, uint32_t *buffer_size)
Get the buffer size needed for the provided presence detector handle.
PRESENCE_PRESET_CONFIG_MEDIUM_RANGE
@ PRESENCE_PRESET_CONFIG_MEDIUM_RANGE
Definition: example_detector_presence_low_power_off.c:49
cargo_result_t::inter_presence_score
float inter_presence_score
Definition: example_cargo.h:137
acc_hal_rss_integration_get_implementation
const acc_hal_a121_t * acc_hal_rss_integration_get_implementation(void)
Get hal implementation reference.
Definition: acc_hal_integration_stm32cube_xm.c:152
acc_detector_presence_config_intra_detection_threshold_set
void acc_detector_presence_config_intra_detection_threshold_set(acc_detector_presence_config_t *presence_config, float intra_detection_threshold)
Set the detection threshold for the intra-frame presence detection.
acc_integration_mem_alloc
void * acc_integration_mem_alloc(size_t size)
Allocate dynamic memory.
Definition: acc_integration_stm32.c:592
PRESENCE_PRESET_CONFIG_LONG_RANGE
@ PRESENCE_PRESET_CONFIG_LONG_RANGE
Definition: example_detector_presence_low_power_off.c:50
acc_hal_a121_t
Definition: acc_hal_definitions_a121.h:82
acc_rss_hal_register
bool acc_rss_hal_register(const acc_hal_a121_t *hal)
Register an integration.
presence_preset_config_t
presence_preset_config_t
Definition: example_detector_presence_low_power_off.c:45
acc_integration_set_periodic_wakeup
void acc_integration_set_periodic_wakeup(uint32_t time_msec)
Set up a periodic timer used to wake up the system from sleep.
Definition: acc_integration_stm32.c:496
acc_sensor.h
set_config
static void set_config(acc_detector_presence_config_t *presence_config, presence_preset_config_t preset)
Definition: example_detector_presence_low_power_off.c:256
acc_detector_presence_result_t
Presence detector results container.
Definition: acc_detector_presence.h:46
buffer_size
uint32_t buffer_size
Definition: i2c_example_cargo.c:41
acc_detector_presence_config_inter_frame_presence_timeout_set
void acc_detector_presence_config_inter_frame_presence_timeout_set(acc_detector_presence_config_t *presence_config, uint16_t inter_frame_presence_timeout)
Set the inter-frame presence timeout in seconds.
sensor
acc_sensor_t * sensor
Definition: i2c_example_cargo.c:33
ref_app_parking_handle::cal_result
acc_cal_result_t cal_result
Definition: ref_app_parking.c:45
acc_detector_presence_config_destroy
void acc_detector_presence_config_destroy(acc_detector_presence_config_t *presence_config)
Destroy a presence detector configuration.
acc_detector_presence_metadata_t
Definition: acc_detector_presence.h:88
acc_hal_integration_wait_for_sensor_interrupt
bool acc_hal_integration_wait_for_sensor_interrupt(acc_sensor_id_t sensor_id, uint32_t timeout_ms)
Wait for a sensor interrupt.
Definition: acc_hal_integration_stm32cube_xm.c:130
acc_hal_integration_a121.h
acc_detector_presence_config_end_set
void acc_detector_presence_config_end_set(acc_detector_presence_config_t *presence_config, float end)
Set the end point of measurement interval in meters.
acc_detector_presence_config_intra_output_time_const_set
void acc_detector_presence_config_intra_output_time_const_set(acc_detector_presence_config_t *presence_config, float intra_output_time_const)
Set the time constant for the output in the intra-frame part.
result
cargo_result_t result
Definition: i2c_example_cargo.c:43
acconeer_main
int acconeer_main(int argc, char *argv[])
Assembly test example.
Definition: example_detector_presence_low_power_off.c:72
acc_version_get
const char * acc_version_get(void)
Get the version of the Acconeer software.
printf
#define printf
Definition: printf.h:60
acc_hal_integration_sensor_enable
void acc_hal_integration_sensor_enable(acc_sensor_id_t sensor_id)
Enable sensor.
Definition: acc_hal_integration_stm32cube_xm.c:109
acc_detector_presence_config_inter_frame_idle_state_set
void acc_detector_presence_config_inter_frame_idle_state_set(acc_detector_presence_config_t *presence_config, acc_config_idle_state_t idle_state)
Set inter frame idle state.
acc_hal_definitions_a121.h
acc_detector_presence_process
bool acc_detector_presence_process(acc_detector_presence_handle_t *presence_handle, void *buffer, acc_detector_presence_result_t *result)
Process the data according to the configuration used in acc_detector_presence_config_create.
acc_detector_presence_config_inter_output_time_const_set
void acc_detector_presence_config_inter_output_time_const_set(acc_detector_presence_config_t *presence_config, float inter_output_time_const)
Set the time constant for the output in the inter-frame part.
acc_detector_presence_config_reset_filters_on_prepare_set
void acc_detector_presence_config_reset_filters_on_prepare_set(acc_detector_presence_config_t *presence_config, bool enable)
Set if the presence filters should reset on prepare.
PRESENCE_PRESET_CONFIG_SHORT_RANGE
@ PRESENCE_PRESET_CONFIG_SHORT_RANGE
Definition: example_detector_presence_low_power_off.c:48
DEFAULT_PRESET_CONFIG
#define DEFAULT_PRESET_CONFIG
Definition: example_detector_presence_low_power_off.c:57
PRESENCE_PRESET_CONFIG_LOW_POWER_WAKEUP
@ PRESENCE_PRESET_CONFIG_LOW_POWER_WAKEUP
Definition: example_detector_presence_low_power_off.c:51
acc_detector_presence_prepare
bool acc_detector_presence_prepare(const acc_detector_presence_handle_t *presence_handle, acc_detector_presence_config_t *presence_config, acc_sensor_t *sensor, const acc_cal_result_t *cal_result, void *buffer, uint32_t buffer_size)
Prepare the detector to do a measurement.
acc_detector_presence_config_intra_detection_set
void acc_detector_presence_config_intra_detection_set(acc_detector_presence_config_t *presence_config, bool enable)
Set intra-frame presence detection.
cargo_result_t::intra_presence_score
float intra_presence_score
Definition: example_cargo.h:140
acc_hal_integration_sensor_disable
void acc_hal_integration_sensor_disable(acc_sensor_id_t sensor_id)
Disable sensor.
Definition: acc_hal_integration_stm32cube_xm.c:119
acc_detector_presence_config_t
struct acc_detector_presence_config acc_detector_presence_config_t
Definition: acc_detector_presence.h:41
presence_preset_config_t
presence_preset_config_t
Definition: example_detector_presence_low_power_hibernate.c:45
print_result
static void print_result(acc_detector_presence_result_t *result)
Definition: example_detector_presence_low_power_off.c:400
acc_detector_presence_config_inter_frame_slow_cutoff_set
void acc_detector_presence_config_inter_frame_slow_cutoff_set(acc_detector_presence_config_t *presence_config, float inter_frame_slow_cutoff)
Set the cutoff frequency of the low pass filter for the slow filtered absolute sweep mean.
acc_detector_presence_config_frame_rate_get
float acc_detector_presence_config_frame_rate_get(const acc_detector_presence_config_t *presence_config)
Get the frame rate.
acc_detector_presence_config_profile_set
void acc_detector_presence_config_profile_set(acc_detector_presence_config_t *presence_config, acc_config_profile_t profile)
Set a profile.
acc_integration_mem_free
void acc_integration_mem_free(void *ptr)
Free dynamic memory.
Definition: acc_integration_stm32.c:602
acc_integration_sleep_until_periodic_wakeup
void acc_integration_sleep_until_periodic_wakeup(void)
Put the system in sleep until the periodic timer triggers.
Definition: acc_integration_stm32.c:552
SENSOR_TIMEOUT_MS
#define SENSOR_TIMEOUT_MS
Definition: example_detector_presence_low_power_off.c:55
acc_definitions_common.h
acc_detector_presence_create
acc_detector_presence_handle_t * acc_detector_presence_create(acc_detector_presence_config_t *presence_config, acc_detector_presence_metadata_t *metadata)
Create a presence detector with the provided configuration.
acc_detector_presence_handle_t
struct acc_detector_presence_handle acc_detector_presence_handle_t
Definition: acc_detector_presence.h:34
acc_sensor_calibrate
bool acc_sensor_calibrate(acc_sensor_t *sensor, bool *cal_complete, acc_cal_result_t *cal_result, void *buffer, uint32_t buffer_size)
Calibrate a sensor.
acc_detector_presence_config_create
acc_detector_presence_config_t * acc_detector_presence_config_create(void)
Create a configuration for a presence detector.
cargo_result_t::presence_detected
bool presence_detected
Definition: example_cargo.h:134
acc_detector_presence_config_signal_quality_set
void acc_detector_presence_config_signal_quality_set(acc_detector_presence_config_t *presence_config, float signal_quality)
Set signal quality.
acc_detector_presence_config_start_set
void acc_detector_presence_config_start_set(acc_detector_presence_config_t *presence_config, float start)
Set the start point of measurement interval in meters.
acc_detector_presence.h
acc_detector_presence_config_inter_detection_threshold_set
void acc_detector_presence_config_inter_detection_threshold_set(acc_detector_presence_config_t *presence_config, float inter_detection_threshold)
Set the detection threshold for the inter-frame presence detection.
acc_sensor_measure
bool acc_sensor_measure(acc_sensor_t *sensor)
Start a radar measurement with previously prepared configuration.
acc_detector_presence_config_auto_step_length_set
void acc_detector_presence_config_auto_step_length_set(acc_detector_presence_config_t *presence_config, bool enable)
Enable automatic selection of step length based on the profile.
acc_sensor_t
struct acc_sensor acc_sensor_t
Definition: acc_sensor.h:31
acc_detector_presence_config_intra_frame_time_const_set
void acc_detector_presence_config_intra_frame_time_const_set(acc_detector_presence_config_t *presence_config, float intra_frame_time_const)
Set the time constant for the depthwise filtering in the intra-frame part.
acc_detector_presence_config_automatic_subsweeps_set
void acc_detector_presence_config_automatic_subsweeps_set(acc_detector_presence_config_t *presence_config, bool automatic_subsweeps)
Set if automatic subsweeps should be used.
acc_sensor_destroy
void acc_sensor_destroy(acc_sensor_t *sensor)
Destroy a sensor instance freeing any resources allocated.
acc_definitions_a121.h
acc_detector_presence_config_frame_rate_app_driven_set
void acc_detector_presence_config_frame_rate_app_driven_set(acc_detector_presence_config_t *presence_config, bool enable)
Set if the application should maintain the requested frame rate.
acc_detector_presence_config_inter_frame_fast_cutoff_set
void acc_detector_presence_config_inter_frame_fast_cutoff_set(acc_detector_presence_config_t *presence_config, float inter_frame_fast_cutoff)
Set the cutoff frequency of the low pass filter for the fast filtered absolute sweep mean.
do_sensor_calibration
static bool do_sensor_calibration(acc_sensor_t *sensor, acc_cal_result_t *cal_result, void *buffer, uint32_t buffer_size)
Definition: example_detector_presence_low_power_off.c:366
acc_sensor_create
acc_sensor_t * acc_sensor_create(acc_sensor_id_t sensor_id)
Create a sensor instance.