ESP32 Forum

Posted: **Wed Feb 26, 2020 12:29 am**

I'm trying to program a ESP32 to run with batteries, and collect accelerometer data with MPU-6050, but my deepsleep only works on short periods of time, i was trying to make him function during 5 minutes, and deepsleep for 55 minutes.

Code: [Select all] [Expand/Collapse]

#include <Adafruit_MPU6050.h>
#include <Adafruit_Sensor.h>
 
#include <Wire.h>
#include <WiFi.h>
 
#include "FirebaseESP32.h"
 
#define WIFI_SSID "jacaranda 2 g"
#define WIFI_PASSWORD ""
 
#define TIME_TO_SLEEP 60 /* Time ESP32 will go to sleep (in seconds) 3600 seconds = 1 hour */
#define TIME_TO_COLLECT 30
 
#define ASSET_ID "cxs09"
 
RTC_DATA_ATTR int bootCount = 0;
 
FirebaseData firebaseData;
 
Adafruit_MPU6050 mpu;
 
const char* ntpServer = "pool.ntp.org";
const long gmtOffset_sec = 0;
const int daylightOffset_sec = 3600;
 
unsigned long startTime;
 
uint64_t loopi = 0;
 
uint64_t xx_time_get_time() {
  struct timeval tv;
  gettimeofday(&tv, NULL);
  return (tv.tv_sec * 1000LL + (tv.tv_usec / 1000LL));
}
 
void print_wakeup_reason(){
  esp_sleep_wakeup_cause_t wakeup_reason;
 
  wakeup_reason = esp_sleep_get_wakeup_cause();
 
  switch(wakeup_reason)
  {
    case ESP_SLEEP_WAKEUP_EXT0 : Serial.println("Wakeup caused by external signal using RTC_IO"); break;
    case ESP_SLEEP_WAKEUP_EXT1 : Serial.println("Wakeup caused by external signal using RTC_CNTL"); break;
    case ESP_SLEEP_WAKEUP_TIMER : Serial.println("Wakeup caused by timer"); break;
    case ESP_SLEEP_WAKEUP_TOUCHPAD : Serial.println("Wakeup caused by touchpad"); break;
    case ESP_SLEEP_WAKEUP_ULP : Serial.println("Wakeup caused by ULP program"); break;
    default : Serial.printf("Wakeup was not caused by deep sleep: %d\n",wakeup_reason); break;
  }
}
 
char * uintToStr( const uint64_t num, char *str )
{
  uint8_t i = 0;
  uint64_t n = num;
 
  do
    i++;
  while ( n /= 10 );
 
  str[i] = '\0';
  n = num;
 
  do
    str[--i] = ( n % 10 ) + '0';
  while ( n /= 10 );
 
  return str;
}
 
void setup(void) {
 
  Serial.begin(115200);
  while (!Serial)
    delay(100); // will pause until serial console opens
 
  //Increment boot number and print it every reboot
  ++bootCount;
  Serial.println("Boot number: " + String(bootCount));
 
  //Print the wakeup reason for ESP32
  print_wakeup_reason();
 
  esp_sleep_enable_timer_wakeup(TIME_TO_SLEEP * 1000000);
  Serial.println("Setup ESP32 to sleep for every " + String(TIME_TO_SLEEP) + " Seconds");
 
  esp_sleep_pd_config(ESP_PD_DOMAIN_RTC_PERIPH, ESP_PD_OPTION_OFF);
  Serial.println("Configured all RTC Peripherals to be powered down in sleep");
 
  WiFi.begin(WIFI_SSID, WIFI_PASSWORD);
  Serial.print("Connecting to Wi-Fi");
  while (WiFi.status() != WL_CONNECTED)
    {
      Serial.print(".");
      delay(300);
  }
  Serial.println();
  Serial.print("Connected with IP: ");
  Serial.println(WiFi.localIP());
  Serial.println();
 
  Firebase.begin("cloud-iot-68406.firebaseio.com", "MDkvUMYa1WCdOjej3kegTEWroWV3gSXkZMto1O3P");
  Firebase.reconnectWiFi(true);
 
  // Try to initialize!
  if (!mpu.begin()) {
    Serial.println("Failed to find MPU6050 chip");
    while (1) {
      delay(10);
    }
  }
  Serial.println("MPU6050 Found!");
 
  mpu.setAccelerometerRange(MPU6050_RANGE_4_G); // Ate 20m/s^2
 
  mpu.setFilterBandwidth(MPU6050_BAND_21_HZ); //Delay 8.5 ms
 
  Serial.println("");
 
  configTime(gmtOffset_sec, daylightOffset_sec, ntpServer);
 
  Serial.flush();
 
  startTime = millis();
 
  delay(1000);
}
 
void loop() {
 
  char str[21];
  FirebaseJson json;
  FirebaseJson json2;
 
  /* Get new sensor events with the readings */
  sensors_event_t a, g, temp;
  mpu.getEvent(&a, &g, &temp);
 
  double ax = a.acceleration.x;
  double ay = a.acceleration.y;
  double az = a.acceleration.z;
  double at = temp.temperature;
 
  uint64_t epoch = xx_time_get_time();
 
  json2.set("x", ax);
  json2.set("y", ay);
  json2.set("z", az);
  json2.set("temp", at);
  json.set(uintToStr(epoch, str), json2);
  Firebase.updateNode(firebaseData, ASSET_ID, json);
 
  /* Print out the values */
  Serial.print("X: ");
  Serial.print(ax);
  Serial.print(", Y: ");
  Serial.print(ay);
  Serial.print(", Z: ");
  Serial.print(az);
  Serial.println(" m/s^2");
  Serial.print("Temp: ");
  Serial.print(at);
  Serial.println(" degC");
 
  Serial.println("");
 
  delay(200);
 
  if (millis() - startTime >= TIME_TO_COLLECT * 1000) {
    esp_deep_sleep_start();
  }
 
}

GeSHi © Codebox Plus Extension

This is my code, i'm kinda new, so any tips are helpful.

Thanks.

Posted: **Wed Feb 26, 2020 2:42 am**

Try
esp_sleep_enable_timer_wakeup(TIME_TO_SLEEP * 1000000ULL);

Posted: **Wed Feb 26, 2020 5:09 pm**

It didn't work, i tried the new code, but after 10 minutes collecting, he still doesn't sleep

ESP32 Forum

Deepsleep only works sometimes

Deepsleep only works sometimes

Re: Deepsleep only works sometimes

Re: Deepsleep only works sometimes