Electrical Engineering Stack Exchange
Electrical Engineering Stack Exchange

Questions tagged [lidar]

For questions about designing electronics with LIDAR (light detection and ranging).

For questions about designing electronics with LIDAR (light detection and ranging).

See Wikipedia's article on LIDAR for more information.

19 questions
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Trouble deciding on how to build a LiDAR system for 2D and/or 3D mapping

OVERVIEW OF MY LIDAR PROJECT Three of us are attempting to build a 2D LiDAR (Light Detection and Ranging) system to scan an indoor area or tunnel system. The data will be used to reconstruct a 2D image. If 2D is accomplished within our timeline we…
Shane Yost
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How a laser ranger finder actually works on an odd surface

I am trying to learn something about LIDAR sensors or Laser Range finders. But I am always getting confused how could it get works. What I understood about the principle is it emits a laser (invisible laser) which gets reflected back to sensor and…
Sandeep Thomas
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Time of Flight sensor design

I'm designing electronics for a time-of-flight sensor that will have an operating distance of 3cm - 1m. I want a distance accuracy of 5cm, like this model: https://www.pololu.com/file/0J1187/vl53l0x.pdf To obtain an accuracy of 5cm, we would need a…
acenturyanabit
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FMCW radar FFT(Fast Fourier Transform)

I am trying to design a simple FMCW radar for the ideal case. Below are steps I planned. Transmit signal, Tx = cos(T) receive signal, Rx = cos(R) Mix transmitted signal and received signal, Sx1 = cos(T) * cos(R) = 0.5 * {cos(T+R) * cos(T-R)} Apply…
DONG CHAN LEE
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Assistance in finding proper sensor for short-range object detection task

We are working on a research project. We try to measure the distance from an object to some static line/pole. The area of interest is within a range of 1 to 5 meters, and the tracked object is a human. Our desire is to precisely measure the distance…
Stanislav
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Simple Time of Flight distance threshold design

I want to make a basic TOF distancing circuit inspired by the square-wave phase shift method here. But I don't know how to measure charge stored in capacitors. However, I thought of a simplification. Perhaps I could just measure if one value is…
CaptainCodeman
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Using LIDAR in a 360-degree configuration

(I do not know an appropriate place for this on Stack Exchange. There does not appear to be any groups dedicated to LIDAR or ranging, so this will do for now. Please let me know if there is a better place to post this.) Are there any current…
HFOrangefish
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How to test TF02 pro (rs485) LIDAR sensor

I have a tf02 Luna pro (RS485 version). I would like to test whether this sensor works or not. There are 2 possible test I can think of I can do. First is to use an RS485 to USB converter I had lying around so I can run the test application made by…
DrakeJest
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What microcontroller speed can work with lidar?

I'm making a lidar module as a project at my university. The deliverable should be a module like YDLIDAR X4 Lidar or tf-mini lidar. I watched a video from GreatScott in which he disassembled a YLIDAR X4 lidar. The microcontroller was a STM32F302x6.…
AhmedH2O
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Measuring angled surface with LIDAR

I have been trying to create a sensor that detects when a golf club hits a golf ball. My idea was to have a LIDAR sensor continuously poll the head of the golf club, and return a positive indication when the distance has changed significantly. To do…
vernal123
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How can a lidar achieve cm-level resolution?

In order to achieve cm-level resolution, it seems like a lidar would need to have extremely high sampling rates. Here's my thinking: Light travels at roughly 3·108 m/s, or 3·1010 cm/s. We need to sample at double this rate (Nyquist frequency), so…
Achintya Agarwal
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Need help with the choice of a motion sensor for use in arctic temperatures

We are a group of students, who are currently investigating how to build a robot that is meant to work at arctic temperatures (peaks at roughly -30 degrees Celsius). We would like to equip our robot with a motion / object detection sensor. The…
Theo85
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Make drone fly autonomously from point A to B

I want to develop a autonomous drone which is able to fly from point A to point B in an indoor location. The drone starts at point A and with a button push it should fly to point B. The points have a distance of around 2m, the drone should land on…
Yoomo
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Proximity sensor to measure object presence, speed and orientation

As depicted in the image, I'm looking for sensors to incorporate in a project where I have to detect object presence in short range (10-100mm), speed (passing from one sensor location to another, 0.1-10m/s), distance and orientation (just roughly).…
KMC
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Distance reading with Garmin lidar lite v4 over I²C with Arduino Due fails when connecting stepper driver

I am using following configuration: Arduino Due Garmin Lidar-lite V4 distance reading by the Arduino over I²C Several Stepper motor controlled by the same Arduino through drivers (DM320T and DM542T) Here is the problem: When the stepper drivers…
Joe Vray
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