Example Code for Arduino-Sleep-Information

Hardware Preparation

• C1001 Millimeter Wave Human Detection Sensor
• ESP32-S3-DevKitC-1 Development Board, or other ESP32-based development boards.

Software Preparation

• Arduino IDE, Click to download Arduino IDE
• DFRobot_HumanDetection library, Click to download DFRobot_HumanDetection library
• How to install library files, Click the link

Wiring Diagram

Other Preparation Work

Sample Code

/**！
 * @file sleep.ino
 * @brief This is an example of sleep detection using human millimeter wave radar.
 * @copyright  Copyright (c) 2010 DFRobot Co.Ltd (http://www.dfrobot.com)
 * @license     The MIT License (MIT)
 * @author [tangjie]([email protected])
 * @version  V1.0
 * @date  2024-06-03
 * @url https://github.com/DFRobot/DFRobot_HumanDetection
 */
#include "DFRobot_HumanDetection.h"

DFRobot_HumanDetection hu(&Serial1);

void setup() {
  Serial.begin(115200);
  Serial1.begin(115200, SERIAL_8N1, 4, 5);

  Serial.println("Start initialization");
  while (hu.begin() != 0) {
    Serial.println("init error!!!");
    delay(1000);
  }
  Serial.println("Initialization successful");

  Serial.println("Start switching work mode");
  while (hu.configWorkMode(hu.eSleepMode) != 0) {
    Serial.println("error!!!");
    delay(1000);
  }
  Serial.println("Work mode switch successful");

  Serial.print("Current work mode:");
  switch (hu.getWorkMode()) {
    case 1:
      Serial.println("Fall detection mode");
      break;
    case 2:
      Serial.println("Sleep detection mode");
      break;
    default:
      Serial.println("Read error");
  }

  hu.configLEDLight(hu.eHPLed, 1);  // Set HP LED switch
  hu.sensorRet();                   // Module reset, must perform sensorRet after setting data, otherwise the sensor may not be usable

  Serial.print("HP LED status:");
  switch (hu.getLEDLightState(hu.eHPLed)) {
    case 0:
      Serial.println("Off");
      break;
    case 1:
      Serial.println("On");
      break;
    default:
      Serial.println("Read error");
  }

  Serial.println();
  Serial.println();
}

void loop() {
  Serial.print("Bed entry status:");
  switch (hu.smSleepData(hu.eInOrNotInBed)) {
    case 0:
      Serial.println("Out of bed");
      break;
    case 1:
      Serial.println("In bed");
      break;
    default:
      Serial.println("Read error");
  }

  Serial.print("Sleep status:");
  switch (hu.smSleepData(hu.eSleepState)) {
    case 0:
      Serial.println("Deep sleep");
      break;
    case 1:
      Serial.println("Light sleep");
      break;
    case 2:
      Serial.println("Awake");
      break;
    case 3:
      Serial.println("None");
      break;
    default:
      Serial.println("Read error");
  }
  Serial.printf("Awake duration: %d\n", hu.smSleepData(hu.eWakeDuration));
  Serial.printf("Deep sleep duration: %d\n", hu.smSleepData(hu.eDeepSleepDuration));
  Serial.printf("Sleep quality score: %d\n", hu.smSleepData(hu.eSleepQuality));

  sSleepComposite comprehensiveState = hu.getSleepComposite();
  Serial.println("Comprehensive sleep status:{");

  Serial.print("\tExistence status: ");
  switch (comprehensiveState.presence) {
    case 0:
      Serial.println("No one");
      break;
    case 1:
      Serial.println("Someone is present");
      break;
    default:
      Serial.println("Read error");
  }

  Serial.print("\tSleep status:");
  switch (comprehensiveState.sleepState) {
    case 0:
      Serial.println("Deep sleep");
      break;
    case 1:
      Serial.println("Light sleep");
      break;
    case 2:
      Serial.println("Awake");
      break;
    case 3:
      Serial.println("None");
      break;
    default:
      Serial.println("Read error");
  }

  Serial.printf("\tAverage respiration rate: %d\n", comprehensiveState.averageRespiration);
  Serial.printf("\tAverage heart rate: %d\n", comprehensiveState.averageHeartbeat);
  Serial.printf("\tNumber of turns: %d\n", comprehensiveState.turnoverNumber);
  Serial.printf("\tProportion of significant body movement: %d\n", comprehensiveState.largeBodyMove);
  Serial.printf("\tProportion of minor body movement: %d\n", comprehensiveState.minorBodyMove);
  Serial.printf("\tNumber of apneas: %d\n", comprehensiveState.apneaEvents);
  Serial.println("}");

  Serial.print("Sleep abnormalities:");
  switch (hu.smSleepData(hu.eSleepDisturbances)) {
    case 0:
      Serial.println("Sleep duration less than 4 hours");
      break;
    case 1:
      Serial.println("Sleep duration more than 12 hours");
      break;
    case 2:
      Serial.println("Long time abnormal absence of person");
      break;
    case 3:
      Serial.println("None");
      break;
    default:
      Serial.println("Read error");
  }

  sSleepStatistics statistics = hu.getSleepStatistics();  // Get sleep statistics, the sensor reports the whole night's sleep statistics data when it judges the sleep process to be over.
  Serial.println("Sleep statistics:{");
  Serial.printf("\tSleep quality score: %d\n", statistics.sleepQualityScore);
  Serial.printf("\tProportion of awake time: %d\n", statistics.sleepTime);
  Serial.printf("\tProportion of light sleep time: %d\n", statistics.wakeDuration);
  Serial.printf("\tProportion of light sleep time: %d\n", statistics.shallowSleepPercentage);
  Serial.printf("\tProportion of deep sleep time: %d\n", statistics.deepSleepPercentage);
  Serial.printf("\tOut of bed duration: %d\n", statistics.timeOutOfBed);
  Serial.printf("\tNumber of times out of bed: %d\n", statistics.exitCount);
  Serial.printf("\tNumber of turns: %d\n", statistics.turnOverCount);
  Serial.printf("\tAverage respiration: %d\n", statistics.averageRespiration);
  Serial.printf("\tAverage heartbeat: %d\n", statistics.averageHeartbeat);
  Serial.println("}");

  Serial.print("Sleep quality rating: ");
  switch (hu.smSleepData(hu.eSleepQualityRating)) {
    case 0:
      Serial.println("None");
      break;
    case 1:
      Serial.println("Good sleep quality");
      break;
    case 2:
      Serial.println("Average sleep quality");
      break;
    case 3:
      Serial.println("Poor sleep quality");
      break;
    default:
      Serial.println("Read error");
  }

  Serial.print("Abnormal struggle status: ");
  switch (hu.smSleepData(hu.eAbnormalStruggle)) {
    case 0:
      Serial.println("None");
      break;
    case 1:
      Serial.println("Normal status");
      break;
    case 2:
      Serial.println("Abnormal struggle status");
      break;
    default:
      Serial.println("Read error");
  }

  Serial.println();
  Serial.println();
  delay(1000);
}

Result

Sleep detection information will be output via serial port.