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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`
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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.
Hereβs 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
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