tests/driver_sm_pwm_01c: initial import

tests/driver_sm_pwm_01c/Makefile

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+BOARD ?= samr21-xpro
+
+include ../Makefile.tests_common
+
+USEMODULE += progress_bar
+USEMODULE += sm_pwm_01c
+
+include $(RIOTBASE)/Makefile.include

tests/driver_sm_pwm_01c/Makefile.ci

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+BOARD_INSUFFICIENT_MEMORY := \
+    nucleo-l011k4
+    #

tests/driver_sm_pwm_01c/README.md

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+# Test Application for the Amphenol SM_PWM_01C infrared dust sensor
+
+## About
+
+This is a simple test application for the SM_PWM_01C driver.
+
+## Expected result
+
+If everything works then you should see the progress bar vary if dust
+concentration changes in the room, or manually block the infrared inputs
+to force a change.
+
+Overly exaggerated values (blocked infrared sensor) can be seen here:
+
+```
+# main(): This is RIOT! (Version: 2021.04-devel-1044-gfd36c-HEAD)
+# sm_pwm_01c driver test application
+# starting weighted average PM2.5 and PM10 measurements
+#
+# PM2.5 level: 1272 ug/m3|███████████              |
+# PM10  level:  490 ug/m3|████                     |
+````
+
+## Details
+
+By default a moving average over a 30s window is returned ad the
+read value. The progress bar is updated every 200ms.

tests/driver_sm_pwm_01c/app.config.test

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+# this file enables modules defined in Kconfig. Do not use this file for
+# application configuration. This is only needed during migration.
+CONFIG_MODULE_SM_PWM_01C=y
+CONFIG_MODULE_ZTIMER=y
+CONFIG_MODULE_ZTIMER_USEC=y
+CONFIG_MODULE_PROGRESS_BAR=y

tests/driver_sm_pwm_01c/main.c

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+/*
+ * Copyright (C) 2021 Inria
+ *
+ * This file is subject to the terms and conditions of the GNU Lesser
+ * General Public License v2.1. See the file LICENSE in the top level
+ * directory for more details.
+ */
+
+/**
+ * @ingroup     tests
+ * @{
+ * @file
+ * @brief       Test application for SM_PWM_01C driver
+ *
+ * @author      Francisco Molina <francois-xavier.molina@inria.fr>
+ * @}
+ */
+
+#include <stdio.h>
+
+#include "ztimer.h"
+
+#include "sm_pwm_01c.h"
+#include "sm_pwm_01c_params.h"
+
+#include "progress_bar.h"
+
+static progress_bar_t progress_bar_list[2];
+
+int main(void)
+{
+    sm_pwm_01c_t dev;
+
+    puts("sm_pwm_01c driver test application");
+    if (sm_pwm_01c_init(&dev, &sm_pwm_01c_params[0]) != 0) {
+        puts("init device [ERROR]");
+        return -1;
+    }
+
+    puts("starting weighted average PM2.5 and PM10 measurements\n");
+    sm_pwm_01c_start(&dev);
+    progress_bar_prepare_multi(2);
+
+    while (1) {
+        ztimer_sleep(ZTIMER_USEC, 200 * US_PER_MS);
+        sm_pwm_01c_data_t data;
+        sm_pwm_01c_read_data(&dev, &data);
+        sprintf(progress_bar_list[0].prefix,
+                "%s %4d ug/m3", "PM2.5 level:",
+                data.mc_pm_2p5);
+        sprintf(progress_bar_list[1].prefix, "%s %4d ug/m3", "PM10  level:",
+                data.mc_pm_10);
+        progress_bar_list[0].value = data.mc_pm_2p5 >
+                                     3000 ? 100 : (data.mc_pm_2p5 * 100) / 3000;
+        progress_bar_list[1].value = data.mc_pm_10 >
+                                     3000 ? 100 : (data.mc_pm_10 * 100) / 3000;
+        progress_bar_update_multi(progress_bar_list, 2);
+    }
+
+    return 0;
+}