Implementation using fills up heap

[pavarott]

Hi your implementation works great except that it fills the heap.
I'm using your library in a while loop and if I check the memory it uses all the heap and breakdown after 30 minutes

[skgsergio]

I cant get right now the sensor and a board for testing. Anyway, I tested this in the past in a continous loop and didn't face any issues, can you paste your code?

[pavarott]

import pyb
from pyb import Pin
# for the ultrasonic sensor
import time
import ultrasonic
import micropython
# after boot and import
micropython.mem_info()

# ultrasonic init
trigger = pyb.Pin.board.A1
echo = pyb.Pin.board.A2
sensor = ultrasonic.Ultrasonic(trigger, echo)
dist = 0 
micropython.mem_info()


while True:
    time.sleep(0.1)
    try:
        dist = sensor.distance_in_cm()
        #print("Dist = {}".format(dist))

    except ultrasonic.MeasurementTimeout as e:
        print("{}".format(e))
    micropython.mem_info()