Hello
Where can I find Python code examples for LidarLite 3?
@Ola: At this time, there are no official LIDAR-Lite v3 Python examples or libraries. But you should be able to find examples in Python for the LIDAR-Lite v2 with a simple online search. Since the system has not changed much in its interface, you should be able to use those with minimal changes. We recommend that you also check the instructions for the v3 available on the product page under Useful Links. They contain much information about the device and its use and interface. One thing you should be careful with is I2C repeated starts. The device does not support them and using them will result in it always returning 0x00 instead of proper values. Good luck!
Hi Sebastien, ii ve just know this device and your review googling in the web, very interesting. I ve found the LIDAR in yr shop and it really doesnât cost so much for what it do. But, i ve always had a question, a dubt. If we need a laser-meter device we can find easly in internet and even in a hardware shop, and with better features, more than 80mt lenght, no particular reflective surface needed etc etc. And at the end with prices for a complete device below 100$ I wonder why we canât have that kind of technology for our projects. Am i wrong ? Which is the issue ? Tnx Fabrizio
Might there be a way to widen the narrow beam using a lens? My application involves the detection of human beings within about a >15 degree cone. I donât want them to have to walk a very narrow line in order to be detected. Of course, one would need to be mindful of obstacles with a large beam angle. Or somehow subtract off a baseline (no target) signal for use with a statically mounted sensor. I need only reasonable accuracy. Thanks.
@Fabrizio: This is most likely due to many factors, but one really comes up to us first: the LIDAR-Lite (and many other LIDARs we offer) are meant for robotics. This means fast, accurate measurements are required. While the handheld laser distance measurement devices look like they are doing the same thing, they only work at âhuman speedsâ, which is rather slow in comparison. For example, the LIDAR-Lite v3 can make measurements at 500 Hz, much faster than the handhelds can (one every few seconds?). This is because it is expected to be mounted on robots (such as drones), which require very fast acquisition rates to update their understanding of their surroundings. This alone can easily increase the price by one or more orders of magnitude. Considering this, the LIDAR-Lite v3 is indeed quite a bargain!
@Ted Jackson: Unfortunately, there is no easy way to modify the beam width of the device, as this would prevent its proper function. Such a change of optics would most likely require a change of firmware, too, which is not available for modifications. Of course, trying to modify the device in such a way would void any warranty and may even expose you to unsafe levels of laser radiation. The device is only considered class 1 in its unmodified state. An alternative solution that would be more reliable would be to use more than one device, to provide multiple beams. This is what is done in most store entrances/exits to count people coming in or out.
I am looking for some laser can penetrate underground
Would lidar lite penetrat underground and what is the range
First, this product comes to Turkey for several days; Second, I want to cut off the bill on behalf of the university how do I do it
@muhammed We accept purchase orders from schools (if that is their chosen payment method), and you can see shipping options online.
Does the LIDAR on the v3 report accurately through a laminated or double glazed window without any issues?
It mentions in the datasheet that the internal I2C interface is 3.3 but it has level shifters to cope with 5v logic, It should be OK but just to confirm will this be safe to use with Arduinos that are not 5v, such as the due or zero?
@Raymond Clark: Yes, that should be fine. If you prefer to use a level shifter, you can check here. Make sure to choose a bi-directional one that supports I2C, such as this one or that one.
are we able to get 40 meters at 180 degrees? are there any case studies that i can look at that shows accuracy in various environments ie weather, low light, harsh sunlight etc
@william: We do not have official case studies. But, we do have plenty of data from customers (and you can find some online, too). The 40 meters distance is obtainable in daytime with no obstruction on most surfaces with the stated accuracy in the datasheet. Of course, any harsher conditions reduce both the maximum range and accuracy to some degree. Some customers did notice a much shorter range in full dark (< 50 %). Sunlight seems to have less of an impact than darkness, most likely due to the filter and how the signal is processed.
Hi,
i am doing a simulink simulation of the lidarlitev3, i think there is no bigger documentation of the internal signalprocessing for the v3
yet, but i found a documentation with deeper informations about the processing for the v2. Can you tell me how much changed since the v2 and where can I get information for the v3 about this topic?
Greets Francis
@Francis: All the information we currently have on the LIDAR-Lite v3 is available on the product page, such as the Operation Manual and Technical Specifications document and the Arduino library. Unfortunately, we do not have any technical details of the signal processing in the LIDAR-Lite v3 or any details on if it changed significantly (and how, if it did). Your best option would be to contact Garmin directly.
Can I get information about the power of the incoming signal or will the Lidar Lite V3 only show me the measured distance?
I wanna know the status of road whether it is plane or normal or is having potholes and humps So can we use it by tilting it little bit and setup some thresholds Since for pothole detection we canât use sonar .So Iâm thinking of using it. Pls reply.