HI,
I'm using the VL53L4CX and in an enclosure and thus have a cover glass over the sensor.
i've been doing some simple calibration, but have noticed that this requires a strict procedure and preferably a good setup to perform the calibration.
I therefor want to make a box to perform the calibration in. This should remove any variables and make sure that calibration is handled the same every time.
I know i should be able to copy the calibration data from one device to the other, but due to it being a lorawan device, and my current provisioning/flashing steps, it's easier for me to calibrate the sensor afterwards.
I posted the same question here: https://community.st.com/t5/imaging-sensors/vl53l4cx-refspad-caliberation-no-target/m-p/869701/highlight/true#M6277 but that's a fairly old topic, so i'm starting a new one.
My current idea for a wooden calibration box is:
- Wooden (probably MDF) box with an internal height from sensor to top of 60cm, probably 40cm wide.
- Matt black paint on at the top of the box to allow for good crosstalk calibration
- drawer mechanism at around 15cm with a white underside.
- box fully enclosed and only the drawer mechanism and a small cutout at the bottom to push the sensor in. So, it's "dark" on the inside of the box.
I would then simply slide the sensor in at the bottom, do the refspad with the 15cm offset with white underside in place. Then i'd do the offset calibration with the same 15cm target. Then remove that drawer/flap (15cm target) and perform the crosstalk calibration at 60cm against matt black paint.
Is this a good approach? Am i missing something?
