why some measurements are longer than others?

[mglowinski93]

Hi,
I noticed that one of the first measurements takes significantly longer than the others.

Example:

import VL53L1X
import time

tof = VL53L1X.VL53L1X(i2c_bus=1, i2c_address=0x29)
tof.open()
tof.set_timing(66000, 70)
tof.start_ranging(1)

for i in range(0, 5):
    start_time = time.time()
    distance = round(tof.get_distance()/10)
    print(f"{i} measurement time: {time.time() - start_time)}")

tof.stop_ranging()

I tried to manipulate timing budget values, but no result. It's always the same.
Do you have any idea why this is happening?

[Reneg973]

According to docu:

Set the timing budget and inter measurement period.
A higher timing budget results in greater measurement accuracy, but also a higher power consumption.
The inter measurement period must be >= the timing budget, otherwise it will be double the expected value.

It may lead to the effect you see!