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 can’t use sonar .So I’m thinking of using it. Pls reply.
@Rahul Tripathi: Please search (CTRL+F in most browsers, when on the page) the previous comments for “potholes”, you will notice we already answered another community member about a similar inquiry. Please note that angle of sensor, surface condition, number of sensors and velocity of sensor on road all are very important details to determine if this is doable. The two responses in the comments should provide enough information to get you started about figuring out what you will need.
@Melvin: We recommend that you check out the instructions manual for the device, especially page 5 and page 9. They give details of signal strength threshold and received strength. You should be able to read those using I2C commands.
How would I get it to output signal strength in your code?
@Rady Price: How and what you can access depends on which version of the LIDAR-Lite you are using. If you are using a version 1/2, please check the v2 doc here (pages 28, 29, 36). If you are using v3, please check the recent blog comments (March 10th, 2017) about strength. The answer to Melvin should be helpful.
Thanks for all the help, i have one question too. Does the LidarLiteV3 have a reference LED like the V2?
Dear Friend, I want to know, The LIDAR lite v3 can be use for vegetation/crops and it be compatible with ardunio.
@Dr Naveed Tahir: The LIDAR-Lite v3 is indeed compatible with Arduino (as you can see in this tutorial / blog article). The LIDAR-Lite v3 is meant as a simple range measurement device and does not penetrate vegetation/crops or help detect them.
@Jerry Garcia: The design of the LIDAR-Lite v3 did not change much from the v2. The controller, library and interface cable changed, but the transmitter/receiver technology did not. The Theory of Operation (page 4 of the manual) mentions the reference signal being transmitted directly to the receiver, so the answer is most likely “yes”.
Can the lidar lite measure water level with Arduino products?
@george: Maybe, but it depends on many factors. We recommend that you search (typically CTRL+F in most web browsers) the other comments on this page for information after water level measurements. The word water should give you good results.
I am stuying the specs right now. What is meant with virtual detector size of 1mm? How can I calculate the beam divergenz of the receiver from the given specs?
Thanks for the great help here.
@Freddy: You can see the specifications here, including beam divergence, which is reported as 4 mRadian x 2 mRadian. This would make it ~0.2292 degrees x ~0.1146 degrees.