New DevHeads get a 320-point leaderboard boost when joining the DevHeads IoT Integration Community. In addition to learning and advising, active community leaders are rewarded with community recognition and free tech stuff. Start your Legendary Collaboration now!
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`
parking_assistant.py
@bosslady0299 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
“`python
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()
“`
i was able to this earlier today am passed this stage and have a different issue now
CONTRIBUTE TO THIS THREAD