Suggest the sensor which have range up to 15 meter.

[Ashish123]

Hello Team,

                I am finding the sensor which have the up to 15 meter range.
                                i am using this sensor in my water level detection project so according to suggest me the sensor. 

Thanks and regard's

ASHISH K.

[John E KVAM]

That is a big ask. There are two issues. One is the distance. ST's best - which will not be out until Christmas 2025 - will only do 10M. 

And the other issue is water. It's not very reflective.

The Time of Flight (tof) sensors send light out in a 45-degree pyramid shape, and this means the light diminishes as a square of the distance. So, unless you have a pretty reflective target, you will not get any signal return. 

This application is beyond anything an ST ToF sensor can do.

You need a 'beam laser'. These devices focus the light into a single point and thus return a much stronger signal.

Unfortunately, there is no all-in-one sensor that does this.   

Might try a commercial range finder (Bosch makes a pretty good one that uses the same SPAD technology). But they can be a bit pricey. 

- john

[Chris21]

https://rfbeam.ch/product/v-ld1-distance-sensor/

"The V-LD1 is an easy to use 61GHz FMCW distance radar sensor with integrated signal processing. No special knowledge in analogue or digital signal processing is needed to adapt the module to different applications resulting in a fast time to market. Transmit frequency and sweep bandwidth are controlled internally and a selection of settings is available to adapt to your application requirements.

The beam width of the module itself is 170 × 60 degrees. However, RFbeam also offers an evaluation kit in combination with a plastic lens that focuses the beam to 8 × 8 degrees, which is  perfect for tank level gauging applications."

[Ashish123]

                   Thank you for your suggestion. i read the datasheet of this sensor it good.

thanks & regard's

ASHISH K.

[Ashish123]

Hello Sir,

             I have your STM distance sensor Vl53L0X . i used this to measure  water level but the sensor value not vary as the water put in the glass.is that support to measure liquid level project.

Thanks and regard's

ASHISH K.

[John E KVAM]

With water there are lots of issues. In fact I wrote a paper on it. 

But the first thing you have to do is switch to the VL53L4CD or VL53L4CX. 

The reason for the switch is that the field of view of the L4 is narrower. And only the light that strikes the water exactly perpendicular will reflect the way you need it to. All the other light hits the bottom, or sides, is slowed by the water and reflects making a mess of the measurement. 

But go to ST.com, search for VL53L4CD and look at the documentation. There is a good paper on actually how to do it. 

The bottom of your container should be flat black - or if you container is clear, set it on a black surface. Then make sure the sensor is near the middle - so the sides don't interfere. 

Then invest in the VL53L4CX eval kit (it's $26) X-Nucleo-53L4A2. It's just the blue board and you have to mate it with the white Nucleo board you have from your VL53L0 setup. 

But the document will tell you want to do. 

It's a short document - and I've included it below.