Photoelement/ultrasound based sensor? Have you seen something like this?

Hardware
1

Hello everyone

I am looking for info if the following sensor exists. Here is what I want - a device that is operated on the principle of either photoelements or ultrasound to detect if a human, vehicle, bicycle, or animal has crossed a road.

How I envision the principle of operation - a sender is mounted on one side of the road, receiver - on the other side. When the beam is crossed, a simple message with a timestamp will be sent out. The message can be sent via 433mzh/866Mhz - this is preferable.

Now the question - have you seen anything like this? Photoelement-based sensor is nothing new - pretty much all garage door openers as far as I know are operating on this principle.

I guess there are/should be other technologies to accomplish the above but I am looking at the cheapest option. I want to install such a device next to the driveway entrance so it should cover about 8m/25ft distance.

If you have seen anything similar, please share.

Thanks.

2

Look at a VL53L1X Ranging Sensor.

3

First - thanks. Now questions: can this detect motion/something crossing the beam if the object is >5 meters/15 away? In the description, it says ’ ranging up to 4 m and fast ranging frequency up to 50 Hz’.

I need something that will detect that the beam is crossed if the object is 0.5m from the beam source or 6m away. The driveway is about 8m wide.

4

There’s dozens of other models. Just search for Time of Flight sensors…