Hello, I hope for your help since I can’t solve the problem myself.
I need to store the variable value 1 or 0 when entering deep sleep mode
I post the variable
RTC_DATA_ATTR int shouldWakeUp = 0;
Next, when the device calls the method to go to sleep, I change
shouldWakeUp = 1;
startDeepSleep();
Next the method is called
void startDeepSleep() {
esp_sleep_enable_timer_wakeup(10 * 1000000);
Serial.print("startDeepSleep() RTC_DATA_ATTR shouldWakeUp = ");
Serial.println(shouldWakeUp);
Serial.println(“SLEEP for 1 min”);
delay(1000);
esp_deep_sleep_start();
}
Now, according to the idea, when ESP starts, the shouldWakeUp variable should be 1
But she’s 0 again
What am I doing wrong? Please take a look at the whole code:
#include <NimBLEDevice.h>
#include "Wire.h"
#include <MPU6050_light.h>
#include <DFRobot_QMC5883.h>
DFRobot_QMC5883 compass(&Wire, /*I2C addr*/ QMC5883_ADDRESS);
MPU6050 mpu(Wire);
// Structure to hold sensor data
struct SensorData {
int16_t ax;
int16_t ay;
int16_t az;
int16_t h;
int16_t v;
};
BLEServer *pServer = NULL;
BLECharacteristic *Ch_SendData;
bool deviceConnected = false;
RTC_DATA_ATTR int shouldWakeUp = 0;
unsigned long sleepTimer = 0;
const unsigned long AFTER_SLEEP_TIMER = 5000; // 5 seconds
const unsigned long SLEEP_TIMEOUT_CONNECTED = 30000; // 30 seconds
const unsigned long SLEEP_TIMEOUT_DISCONNECTED = 30000; // 30 seconds
#define SERVICE_UUID "6E400001-B5A3-F393-E0A9-E50E24DCCA9A"
#define UUID_Reboot "6E400002-B5A3-F393-E0A9-E50E24DCCA9B"
#define UUID_SendData "6E400003-B5A3-F393-E0A9-E50E24DCCA9C"
// Placeholder method for handling movement after waking up from sleep
void startMoving() {
// Implementation to be added
}
// Function to initiate deep sleep
void startDeepSleep() {
// Disable BLE
BLEDevice::deinit(true);
// Set sleep timer for 10 seconds
esp_sleep_enable_timer_wakeup(10 * 1000000);
Serial.print("startDeepSleep() RTC_DATA_ATTR shouldWakeUp = ");
Serial.println(shouldWakeUp);
Serial.println("SLEEP for 1 min");
delay(1000);
// Enter deep sleep
esp_deep_sleep_start();
}
// Function to check for movement based on gyro data
void motionTracking(float tx, float ty, float tz) {
if (abs(tx) > 40 || abs(ty) > 40 || abs(tz) > 40) {
// If movement is detected
Serial.println("MOVING");
sleepTimer = millis();
}
}
// Function to handle actions after waking up from sleep
void wakeUp() {
Serial.println("Restart 70");
mpu.update();
float tx = mpu.getGyroX();
float ty = mpu.getGyroY();
float tz = mpu.getGyroZ();
motionTracking(tx, ty, tz);
if (millis() - sleepTimer > AFTER_SLEEP_TIMER) {
shouldWakeUp = 0;
Serial.println("Time elapsed after wakeup, performing additional actions");
} else {
Serial.println("TRYDEEPSLEEP");
startDeepSleep();
}
}
// Placeholder for BLE initialization (to be implemented)
void startBLE() {
// Add BLE initialization code here
}
void setup() {
Serial.begin(115200);
Wire.begin(6, 7);
while (!compass.begin()) {
Serial.println("Could not find a valid 5883 sensor, check wiring!");
delay(500);
}
byte status = mpu.begin();
startBLE();
}
void loop() {
if (deviceConnected) {
uint32_t Vbatt = 0;
for (int i = 0; i < 16; i++) {
Vbatt = Vbatt + analogReadMilliVolts(A0); // ADC with correction
}
float Vbattf = 2 * Vbatt / 16 / 1000.0; // Attenuation ratio 1/2, mV --> V
SensorData sensorData;
mpu.update();
float declinationAngle = (4.0 + (26.0 / 60.0)) / (180 / PI);
compass.setDeclinationAngle(declinationAngle);
sVector_t mag = compass.readRaw();
compass.getHeadingDegrees();
int16_t ax = mpu.getAngleX();
int16_t ay = mpu.getAngleY();
int16_t az = mpu.getAngleZ();
int16_t headingInt = mag.HeadingDegress;
float tx = mpu.getGyroX();
float ty = mpu.getGyroY();
float tz = mpu.getGyroZ();
sensorData.ax = ax;
sensorData.ay = ay;
sensorData.az = az;
sensorData.h = headingInt;
sensorData.v = static_cast<int16_t>(round(Vbattf * 100));
Serial.println(Vbattf, 3);
Ch_SendData->setValue((uint8_t *)&sensorData, sizeof(sensorData));
Ch_SendData->notify();
// Monitoring for movement
motionTracking(tx, ty, tz);
if (millis() - sleepTimer > SLEEP_TIMEOUT_CONNECTED) {
// If no movement within SLEEP_TIMEOUT_CONNECTED seconds, enter deep sleep
Serial.println("SLEEP-With BLE");
shouldWakeUp = 1;
startDeepSleep();
}
delay(200);
} else {
Serial.println("Start");
Serial.print("setup(): RTC_DATA_ATTR shouldWakeUp = ");
Serial.println(shouldWakeUp);
if (shouldWakeUp == 1) {
Serial.println("shouldWakeUp == 1");
wakeUp();
}
mpu.update();
float tx = mpu.getGyroX();
float ty = mpu.getGyroY();
float tz = mpu.getGyroZ();
motionTracking(tx, ty, tz);
if (millis() - sleepTimer > SLEEP_TIMEOUT_DISCONNECTED) {
// If no movement within SLEEP_TIMEOUT_DISCONNECTED - 10 seconds, enter deep sleep
Serial.println("SLEEP-With BLE ");
shouldWakeUp = 1;
startDeepSleep();
}
}
delay(1000);
}
PJ 
