ok thanks
i have 2 qustions
1-where i can find information about using mirror to scanner (type of mirror, how it should be ,which angle ) and every thing else ???
2- how measurements not affected by angle of incidence laser pulse assuming 2 causes (mirror,wall) and in both causes angle of incidence is not 90 dgree
@sam: We recommend that you perform a quick online search, such as searching for ālidar-lite rotating mirrorā. This should find plenty of examples implementation.
sir, i canāt find the source code.great thanks
Hi, thanks so much for the code. Just got one question to ask, My project is using two servo motors which do the vertical part(height) and the horizontal sweeping part. So do I need to change something in the part of āGet a measurement from the LIDAR Liteā . Caz I have tried just adding a new variable (height) and the servo motor sweep just vertically slowly. Thanks for telling me I am new on this sensor.
@chinalu: You can find the source code link for this example under āSource Codeā here. Here is a direct link. For the libraries from the manufacturer, you can find here.
@Otto: To add a second servo for vertical control, you would need to make a few changes, such as adding a second servo object/variable here, making sure it is also attached here and then controlling it in the main loop. To do a basic 2D scan, you could simply add a second loop to control the new servo around the other ones already there for controlling the horizontal positioning. We recommend that you post about your project on our Project Showcase section of our forum.
Hello, I was wondering if you can point me in the right direction, I want to find a laser that i can take a reading from, almost like a depth gauge, at a distance of about 10cm away. The marking depth would be in less than a millimeter deepā¦? Thanks for your reply.
@Rico: You can find our laser range finder products here. The best ones we currently offer have an accuracy of 0.1 mm under 10 m, but the resolution of the measurement is 1 mm, so it would most likely not be helpful for your case.
And I want to build a military radar detector, those that detect the distance cars to apply fine. Can you tell me which component to use the Arduino to identify the presence of a radar of these at least 500 meters before? I understand the pistolinha radar is a laser.
@omar You mean police radar detector which detects speeding cars? Its easier to simply purchase a unit.
Hi, can you explain to be the term angular resolution to make sure that i understand it well???
what is beam divergence ???
i got the sf30-b and i want to build a scanner an i dont know the angular resolution i should use that suitable with the laser beam ???
regards
@sam: For mote advanced details of this kind, we recommend that you find a good book on optics. You should be able to find plenty of those available online. As a starter, you may want to read more on angular resolution and beam divergence.
Dear Sebastien
Iām writing to thank you for your work here.
I am preparing to make my final work in order to get the degree of System Engineer (computer scienceā¦).
I will make a self balancing robot that use this lidar on a servo motor to get 2d point data, store it on a matrix and create a map from it. Later, I will create some algorithms to avoid obstacles. In the final stage, I will create some algorithms to find the better path going from current position to a desired location avoiding obstacles.
I will check the pcl library.
Can you tell me which keywords should I use to find other libraries like this on google or indexed databases?
I am not sure to use an embedded or a pc oriented solution like MatLab one. I could use an android based solution too over bluetooth too.
I have a partner that is building the robot in order to get his own final work. I am focusing on the algorithms to avoid obstacles and find the best path to go from current position to a desired location avoiding obstacles.
I will take note of that minimum 10 cm to 30 cm minimum distance between my lidar and the obstacles advice.
I have access to a āSlamtech 360Ā° lidar development kit 2D lidarā device too, but I prefer to use the small one to justify all the work I need to made on a new degree final work.
Thanks so much for your help.
Yours sincerely,
Daniel Montoya
Engineering student at ITM Colombia, South America
I am interested in developing a lidar device that is used for competitive trampoline at olympics for example. It needs to detect where on the trampoline the person lands every time they hit the trampoline by scanning just below the surface of the trampoline. The two pieces of information we want to extract are postion on the trampoline and the time the athlete is in the air for each of 10 skills being performed. Would a devise like this be capable of doing such a task? Any help or thoughts would be great.
Darren
@Darren: No, such a device would not be appropriate (at least, not by itself). The LIDAR-Lite is meant for range finding at long distances.
Hi ā¦I am doing experiments on lidar sensor ā¦I have used the same codeā¦but it give m he readings such as 32456,23000, minimum was 172 aprx and maximum was 32000 apprx ā¦what are these values exctly ?
@Ashkay: If you are using the library from the manufacturer, then the readings would normally be in cm. We recommend that you post about your technical issue on our forum instead. You can do so here. It will be easier to troubleshoot your situation there. Also, please make sure to post pictures of your setup and give as much details as possible about code and hardware used.
Some aircraft are hard to land as they rapidly lose lift close to the ground when engine power is cut. Iām referring to real aircraft not models. It would be interesting to see if a range finder could be used for an altitude display from a range of 2 - 3 meters, looking down at asphalt or concrete runways, at a speed of 160 km/hr. This is the upper touchdown speed for most small aircraft, normal is a little lower. Any experience with fast moving target fields?
@grttblu: This may work, but we do not have any reliable data of it being used at such speeds, only for smaller model aircraft. Please note that this device is hobbyist-grade hardware meant for small robots and model aircraft and it is most likely not suitable for real airplane use. Feel free to try one and report about your results on the forum. You can most likely have it work reliably by changing the angle (not pointing straight down) to compensate for the speed (and figure out the transformation/calibration afterwards to obtain a proper height measurement), though this is beyond the scope of our supportā¦ 