DevHeads IoT Integration Server•3mo ago

How can I optimize power and ensure efficient operation of the VL53L0X sensor and OLED on BeagleBone

hello devs, still based on my project parking assistance system using a BeagleBone Black running Embedded Linux, VL53L0X time of flight distance sensor to detect the distance to nearby objects and a 0.96-inch OLED display to show the distance and warning messages. How can I optimize the system to reduce power consumption and ensure the display and sensor work efficiently, i have ensured correct power sequences, avoided immediate reinitialization after power on. But the Sensor not responding after power off

Solution:

i was able to this earlier today am passed this stage and have a different issue now

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3 Replies

nour_oud•3mo ago

parking_assistant.py

Enthernet Code•3mo ago

@Boss lady Reinitialize the VL53L0X sensor after it powers off to restore functionality. Utilize low-power modes and reduce display refresh rates to save power. Update the OLED display only when necessary. Add a short delay after powering on the sensor to ensure stability before reinitialization. Here’s a modified version

import board
import busio
import adafruit_vl53l0x
from Adafruit_SSD1306 import SSD1306_128_64
import time
import subprocess

def initialize_components():
    i2c = busio.I2C(board.SCL, board.SDA)
    vl53 = adafruit_vl53l0x.VL53L0X(i2c)
    disp = SSD1306_128_64(rst=None)
    disp.begin()
    disp.clear()
    disp.display()
    disp.set_contrast(10)
    return vl53, disp

def reinitialize_sensor():
    time.sleep(0.1)
    i2c = busio.I2C(board.SCL, board.SDA)
    vl53 = adafruit_vl53l0x.VL53L0X(i2c)
    return vl53

def display_distance_and_warning(vl53, disp):
    prev_distance = None
    while True:
        distance = vl53.range
        print(f"Distance: {distance} mm")
        if distance != prev_distance:
            disp.clear()
            if distance < 100:
                disp.text("Warning: Too Close!", 0, 0, 1)
            elif distance > 2000:
                disp.text("Warning: Too Far!", 0, 0, 1)
            else:
                disp.text(f"Distance: {distance} mm", 0, 0, 1)
            disp.display()
            prev_distance = distance
        time.sleep(1)

def main():
    vl53, disp = initialize_components()
    try:
        display_distance_and_warning(vl53, disp)
    except Exception as e:
        print("Sensor error: ", e)
        vl53 = reinitialize_sensor()
        display_distance_and_warning(vl53, disp)

if __name__ == "__main__":
    main()

import board
import busio
import adafruit_vl53l0x
from Adafruit_SSD1306 import SSD1306_128_64
import time
import subprocess

def initialize_components():
    i2c = busio.I2C(board.SCL, board.SDA)
    vl53 = adafruit_vl53l0x.VL53L0X(i2c)
    disp = SSD1306_128_64(rst=None)
    disp.begin()
    disp.clear()
    disp.display()
    disp.set_contrast(10)
    return vl53, disp

def reinitialize_sensor():
    time.sleep(0.1)
    i2c = busio.I2C(board.SCL, board.SDA)
    vl53 = adafruit_vl53l0x.VL53L0X(i2c)
    return vl53

def display_distance_and_warning(vl53, disp):
    prev_distance = None
    while True:
        distance = vl53.range
        print(f"Distance: {distance} mm")
        if distance != prev_distance:
            disp.clear()
            if distance < 100:
                disp.text("Warning: Too Close!", 0, 0, 1)
            elif distance > 2000:
                disp.text("Warning: Too Far!", 0, 0, 1)
            else:
                disp.text(f"Distance: {distance} mm", 0, 0, 1)
            disp.display()
            prev_distance = distance
        time.sleep(1)

def main():
    vl53, disp = initialize_components()
    try:
        display_distance_and_warning(vl53, disp)
    except Exception as e:
        print("Sensor error: ", e)
        vl53 = reinitialize_sensor()
        display_distance_and_warning(vl53, disp)

if __name__ == "__main__":
    main()

Solution

Boss lady•3mo ago

i was able to this earlier today am passed this stage and have a different issue now

Gaming

Programming

How can I optimize power and ensure efficient operation of the VL53L0X sensor and OLED on BeagleBone