Getting Started with LIDAR

[@rpuskarcik]

I enjoyed your demo. I think your information is very well communicated. You were correct about the TTL logic detecting a high (1) at above 2.0v (not 2.8v), which is true for all families except CMOS. However, logic lows (0) must be below 0.8v, not just below 2.8v. A simple solution to reducing 5v to 3.3v is to us a zener diode (1N4614) in series with the TTL output and the 3.3v input.

[@ScootLogix]

I really enjoy watching your videos. Great balance of explanation/theory, real world use and coding with explanations.

[@TechDriven365]

This is the best explanation of LIDAR that I have had to watch. amazing work, sir.

[@hemotors2519]

what you explaining is very clear, and we are the manufacturer of the LiDAR motor in your LiDAR device. Wow, I am really proud of that.

[@mobius-1965]

I have desided to become a lidar super freak,I have tons to learn but I am at the right place this gentleman and I will learn his name sorry is a very good teacher therough but not boaring and sticks to the subject I am so exited I ordered the starter kit I regret already not getting the expedited shipping already haha.

[@BarackBananabama]

This guy is an amazing teacher!

[@emptied-soul6105]

agreed!

[@pipercolt1963]

Rather than get sucked in by this conspiracy guy commenting here, I am an electrical engineer and we'll tell you this has got to be an education as they say! Not knocking school just saying however you can learn a lot from the dronebot.

[@ChadForquer]

If he wasn’t so interesting his dry presentation would not be good. The great thing is he picks interesting topics and doesn’t dumb it down to much or make it to technical.

[@BillAnt]

This guy's shop is too neat, you needa messy shop to do great work. he-he just kidding!

[@stevendam8031]

ofc!

[@johnsmith-oy9kx]

You are an amazing TEACHER ! The best LIDAR Tutorial...

[@jorgeferreira6727]

I use a small trick with those RGB LEDs to get a clear full color range for photos , motion picture and even for the nacked eye view. Cover the LED with a tube of white paper. You get a better color mix due to the diffusion effect of the paper and the camera sensors won't saturate with excessive glow. I usually extend the paper tube one or two centimetres above the LED top and get a nice color stick.

[@jshanker2005]

*The future of all humans is LIDAR !*

[@RogerElliott_SysGuru]

Hello, it is great these are so inexpensive now, I used a LIDAR 8 years ago which cost around $1,000 and only covered 240 degrees. 33:12 Shows MOTOCTL connecting to PIN 2, but it should be PIN 3 for PWM. The voice over is correct.

[@codecage9333]

I noticed the same error Roger! But in the example Arduino code it shows MOTOCTL on pin 3, so the astute students should have no problem catching and correcting that issue.

[@namero999]

Oh brother, this channel is a pure gem... Thanks for the amazing work. Also those custom wall outlets are amazing :D

[@dompower500]

Hi Sir. I am always following all of your youtube classes. All are excellent. Your teaching method is very simple and very easy to follow. It's easy to follow even by novice. Thank you very much sir. Expecting more from you. Pls be safe from covid-19 too.

[@oef774]

Nice walking W

[@Golddustdetector]

I want it for 3d maping of earth for tresure hunting can be poisible in rplider?

[@abdraoufx]

It's amazing how arduino opens so many possibilities.

[@acopernic]

Bravo. I think I will use this for my motorcycle to 'see' what's going on behind me but I will test if I can hide part of my motorcycle (to see 180 degrees only). Thank you for this brillant video.

[@talakael5601]

here use this for your motorcycle instead kzbin.info/www/bejne/hXzTi6Skq9aLarc

[@harrychew6359]

@@talakael5601 But he wants to make it himself? XD

[@mrcalico7091]

Great Job again! Your presentations are always so clear, concise and complete! I'm glad I found you're "Workshop" page!

[@schregen]

Amazing video! You're a cool dude! Love hearing about LIDAR and also the history of the technology 💚💛💙💜🍄

[@JameBlack]

Me here after Musk doomed LiDar

[@imho7250]

Bobo Momo, Musk doomed Tesla. Lol

[@SamirPatnaik]

For cars. He builds good ones for rockets. Said that in the same event.

[@batkanova6736]

He explained clearly absolutely.I learned what Lidar is and how lidar is used how lidar is programmed.Thank you very much.I love you.Quality of video is amazing.

[@chrisdepalma6844]

I assume this wont work outside.

[@Hamad.Kuwaitt]

You are Professor in the delivery of information in all simplicity 👍

[@GaryMcKinnonUFO]

The RP model would be great for cave and tunnel scanning.

[@sl1ckk1ll3r]

Great job, really enjoyed this

[@apbosh1]

great introduction to lidars really like the way you explain things. Thanks. subscribed.

[@KSBallvardhan-n3v]

Sir I want to know everything about optical source sensor arrangement pls...Thank you

[@contraplano3157]

It is good to see, you use linux for all

[@autocad5392]

lidar sensor can measure curve surface? because use in road surface scanning and ultrasonic sensor not work .road surface on bumper and small curve hole can measure? i am use in project active suspension. please help best sensor for curved surface and name suggested.

[@BADALICE]

These videos are just amazing quality. College level courses. It does not get any better.

[@oligreenfield1537]

I finally found the holy land

[@anguswoodman8289]

Love your videos. A great episode would be if you could run though how to use the RPLidar for SLAM

[@tushardhulasawant4316]

Sir can we extract the data from lidar sensors in .txt file..

[@MFKR696]

LIDAR may just be coming to the consumer market now, but in reality, LIDAR has been used by various militaries for decades now. Think GPS. When the public got access to it, it had already been in use in various forms and by varying nations (Russia's version is called GLONASS) since the Cold War was still in full swing. Also think about how long HAARP was in a fully-operable state before they started renting out services to mineral and petroleum corporations that want to know what's under the ground before they even attempt to do anything with the land in question. Don't get me wrong... LIDAR is cool, and I'd love to see what non-military uses we can find for it in the future and all, but it's not new.

[@WayneKeen]

RPLIDAR software fails to compile under Visual Studio 2017. Makes the it worthless.

[@anmolpreet8959]

Could you please elaborate? I was thinking to buy this.

[@MakerMark]

Man you have a nice workshop. How about a video tour of how to build a workshop lol

[@gregolson5650]

His lab is way too organized and clean

[@666marsipulami]

Real great explanation of different modules you can use with Arduino. I just love these videos from him. Thank you very much! Great work!

[@kaden56]

I really enjoy your videos and I envy your shop! Great work!

[@MichiganPeatMoss]

As an prior electronics enthusiast, I'm here because of the article on 3D scanning of the Notre Dame cathedral, in lieu of the fire in Apr 2019. Excellent introduction to LIDAR and relevant affordable devices of present day. Thanks!

[@chrismofer]

someone definitely needs to make a system where one of these scans / sweeps an area and stores the points in a known point cloud file format so that they can be opened in 3d software and meshed

[@2010playxbox]

You said people don't want to to experiment with 300$ sensors and electronics??? What world do you live in ahahah, some boys and girls spend more than that on sex toys and to get back to electronics, most high quality oscilloscopes cost way more than 300$.

[@alexhe2383]

Hi I just bought a rplidar a1 recetly. I tried to download the sdk from slamtec, after installation, I could not fine the "tool" directory you mentioned in your video and cannot find the frame_grapper.exe . please. i am using windows 10, i also downloaded the robostudo from slamtec, but cannot get it connected to the rplidar a1. please help thank ypu very muich

[@raydike]

Nice tutorial. I bought the latest A1M8 RPLIDAR, it comes with a different connector. I attached it to an arduino Micro so I could use the Serial1 port for the lidar. Could not get it to work. Only then I read the datasheet, duh.. the new version is not 5V tolerant, only 3.3V so you need to be aware of that. I think I destroyed my new RPLIDAR because whatever I tried I get no response from it. Checked with an oscilloscope, no data.

[@raydike]

After a bit more research I found out that the latest A1M8 firmware (1.29) does not work with the Arduino library used here. All new rplidars sold now have the new firmware.

[@pca.makesting8027]

Thank you sir for giving this fantastic explanation... I need this so much!

[@eduardo33]

Only one thumb up is not enough for your work. Congratulations !

[@divyanshushukla3980]

Hello sir really impressed from your video can you please connect the RPLIDAR to the Raspberry Pi and the ROS driver and to Monitor it remotely

[@NIKOLAY_PSHONIA]

Tell me, by what rod can you see whether the seeds are flying in the pipe or not? Thank you

[@robertst-laurent6452]

Like all of your videos; masterpieces learning tools. You master a very rare talent of teaching complex subjects and making those pure and precious moments of enrichment of knowledge. We now live in a ‘da Vinci’ world of creativity available for all at home where you can get some of the very best CAD tools for free. It is people, angels like you that are giving us this new era, this "da Vinci world of creativity and inspiration" where true happiness in life is giving it to others first.

[@abidikar]

Can I configure this Liadars with APM Flight controller of Drone / Plane for non Colligan ...???

[@matiknik]

This is just so amazing, patiently explained in detail. Thanks for Sharing. Cheers! :D

[@tteffom]

Great Tutorial. Just one comment, in both the narration and the actual sketch for the larger LIDAR, you comment that you are connecting to pin 3, but the diagram shows connection to pin two on the arduino (at point 33:07 in the video). Note this might cause confusion - especially as pin two is the interrupt pin, and (as far as I recall) not the pwm pin.

[@disparky]

I also caught that. Hope there's some clarification.

[@ddddddd9900]

Hello, Amazing video. I have a question, which software are you using for the scanning process in the computer?

[@urishani]

sounds great also with 1.25 and 1.5 speedups... ;) love these tutorials. great quality and informative.

[@joblessalex]

34:20 you could just use 1 resistor instead of 3 on the rgb lines....

[@Atka59]

Well presented and clearly explained in a logical fashion, with excellent diagrams as well. Awesome! I suspect that a lidar will be in my future, it is just too interesting to pass on. Thank you.

[@toriless]

He has it go to pin 2 not pin 3.

[@AkiraFurball]

Filming LED.. you need to uderexpose the shot, the LED is brighter than the exposure for the room so the LED gets over exposed and washes out the colour..

[@winstonsmith478]

A buyer of this on Amazon says this is worthless outdoors despite the outdoor range claims in the manufacturer's manual. This is understandable since this uses a focused IR LED and not a laser. It's like trying to use an IR controlled aircraft outdoors - too much IR noise from our local star overwhelms any reflected signal . His comment: "I tried 2 of these hooked up to an Arduino Nano and also a laptop running their code. Range outdoors is about 3 feet. The best I ever did was 7 feet and this was in the shade. Please note it will not read distances less than 1 foot and when it errors it can put out some big numbers. bottom line is it works indoors ok. Outdoors forget it..."

[@kevinandtheothers9780]

Hi, just wondering where the reference point is for the sensor? In other words, are angles measured starting from a reference angle on the spinning wheel or a reference point on the main mounting/construction/frame of the sensor? I want to detect a specific area with the sensor mounted permanently but I'm worried the reference point will start at a different point every time the sensor is turned on. Thanks!

[@edhagerty]

@dronebotworkshop awesome video. Brings a number of threads together really neatly. May I enquire - I'm sure you've been asked before - where one would source the component storage on the wall in your shop? Thanks!

[@kennedy67951]

Wouldn't the Raspberry pi 3 be a better chose than this Arduino?

[@RelentlessHomesteading]

Wonderful video and I really appreciated the depth - first time to your channel - to which I subscribed.

[@MrSircking]

G day from Australia mate, can this be used on it side to scan the ground from the sky???

[@relkasi5925]

The slight nasality to your voice makes you sound a bit younger than you appear to be. Meant as an observation only, not an insult or compliment.

[@dougrowell7817]

Why mention it then?

[@relkasi5925]

@@dougrowell7817 Boredom

[@GAment_11]

Subscribed. Thank you so much for your expertise, you make learning fun!

[@johnkb79]

Great video, thanks. Just one question, you say the accuracy of the TF Mini Lidar is 5mm (at 13:03 in the video) but the documentation I've seen says between 4cm and 6cm. Is the 5mm correct?

[@PennyAfNorberg]

It need a sampling rate of 30 GHz , not that high.

[@CHITUS]

Awesome tutorial. I love the straight forward detail explanation and visual, it makes it a lot easier to follow. THANK YOU very much.

[@gerokatseros]

Wonderful presentation Sir ... thank you . One question though, is the 115200 baud capable of transfering all the data when reading 8000 measurements per second?

[@rodrigoaguilar7340]

Hi! amazing tutorial Thanks! Do you think it is possible to connect a GPS and an SD card to store the data and the position of the points? regards

[@Longtum]

I have watched your video for serval years. Your videos did help me become from a pure software engineer to a hardware engineer as well. I appreciate it. I am living in Toronto, are you live in Canada too. 😀

[@Dronebotworkshop]

So glad that my videos have helped a fellow Canadian!

[@phanokesak5099]

Thank you very much, and "what a very progressive educational approach..." I haven't even seen the whole time passing. There are some awesome people like you out here. Thanks

[@Alvaroeduardo]

Great review! thanks for all that information. Let me ask you a question, I'm looking for drone lidar for topography that won't break my bank, velodyne it's just too expensive, do you happen to know a lidar scanner that I can install in my drone? thanks

[@beforebefore]

Have you tried the small Garmin Lidar sensor? The LIDAR-Lite v4 LED...

[@darrenp9454]

I just discovered your channel and I am extremely impressed with how you explain concepts and keep the subjects interesting. By the way, you sound Canadian, and I recognize some of your tools being from a certain tire vendor...

[@6ggtov72]

Yeah his accent throws me off sometimes.

[@6ggtov72]

@@Daniel-js3tx As a native Texan, many would agree that, yes, I have an accent. Regarding being from another country, well... In relation to which country? Yours? His? I am American and speak English well. We can deduce from that. His pronunciations are not American. Presumably Canadian.. I'm no linguist but I believe a lot can agree with me that it's different. Pro-sessor vs Praw-sensor. The latter being American.

[@6ggtov72]

Nevertheless, his presentation was highly informative and well presented. Bravo!

[@billfield8300]

@@6ggtov72 Thats funny Frank.. I find him perfectly understandable... haha. I'm from the Toronto Ontario area. and some ppl might argue that you actually speak 'American'. Not to worry, The 'English' (read British) would say I don't speak English either. And for the record, yes he is Canadian. Have a good one.

[@Harsh-oo6bg]

You Sir are serving the world, would like to support your content in future.

[@yellowboxster06]

Great job as always. I appreciate your technical discipline (on color coding, logic levels, etc) when interconnecting devices for demonstration. I look forward to your videos particularly on LIDAR applications. I was actually one of those military guys, way back when, trying to figure out how do make best use of LIDAR for remote sensing and target classification. At the time we were living with the common notion that RADAR was only marginally effective in any given application. We needed better resolution and LIDAR looked promising despite some obvious limitations. Fast forward to today's technology and here we are experimenting with low cost devices that are eye-watering in their capability.

[@danielash1704]

Back up camera software for the purpose of windowing a zone detecting in it. The basic security cameras have zones of activation of motion alarm systems most will have a hard wired sockets to screw down to sensors or lidar tab tip.

[@foobarmaximus3506]

So you were a truck driver then?

[@stetiennealain7504]

Very good demonstration and education

[@baptistedekersauson425]

Hello My program remain stuck on "initializing" and I don't know why. Could you help me?

[@felixbrousseau-vaillancour1609]

same here, help pls!

[@baptistedekersauson425]

You’ve reversed the lidar information cables

[@beratugursolmaz264]

hi! i had the same problem and also "too many measurements". did you find a way around it?

[@yushenghuang7814]

Thanks for sharing. It is really an amazing tutorial.

[@PeterVB00]

Would love to see how these can be interfaced to FRC & FTC Controllers for robotics competitions. NI CRio and NI roboRIO

[@bkzzzzz]

This is very good ! can we see in future videos example of 3D modeling using LIDAR?

[@LarryGreen]

Thank you so much for the step by step instruction and also the background and reasons for tasks performed. I am currently working on a project that has 6 steps, I wish to add a interrupt that would trip in the event of a safety proximity sensor being tripped, yet upon resuming, to return to the exact point where the interrupt took place in the 6 step process, any assistance that you could provide would be great. Thank you again for all that you have offered.

[@dankedan]

thank you for the video! Do you have a link to the voltage converter you're talking about .. I see some on eBay, but as I'm not familiar with this technology yet, I want to follow you for that .. thanks

[@omarobando8273]

Awesome tutorial. I love the straight forward detail explanation and visual, it makes it a lot easier to follow. THANK YOU very much.

[@placitas52]

Nice video. Could you use this to create a 3d image cloud to create g code for cnc work. Much cheaper than laser scanner

[@ChrisLocke1969]

Fyi, if it has parenthesis, its a method of its object, not a property 😉

[@vikramadityamathur2420]

The perfect lecture in high technology for a dummy (like me !:)

[@semiuodunayoadebayo6299]

Hi, thanks for the video. I've watched it several times for the past 4 years to tell you how resourceful you are. Including some other ones, which really kept me going with my first project on robotics. Currently I'm working on interfacing ESP 32 with RPLidar but not really having much progress with it. I've been able to get the LIDAR spinning, but really couldt any information coming through on the serial monitor. Is there any advice you could assist with on the Sketch etc. Thanks to assist the way you can.

[@mhelvaci2156]

Just exellent job what your are doing, great expression ability and clear technical definiton for even dummies. Thanks a lot

[@mertcapkin7263]

do you by any chance know what the difference is between the A1M8-R5 and A1M8-R6?

[@BillAnt]

This got me thinking, in the real world with multiple cars in fairly close proximity of each other, would the signal from the LIDAR emitted from other vehicles interfere with your own car's LIDAR receiver? Hmm... The only solution I can think of is encoding the signal with a unique encryption key for each LIDAR device/vehicle. Any thoughts on this? Also, how can the electronic or mechanical failure of a LIDAR be mitigated in the real world scenario (immediate shutdown of a vehicle by slowing it down/pulling over, or having multiple backup sensors?)

[@giulianag1879]

I've an RpLidar A2, I connects it to an Arduino and print in the serial: start bit, distance, angle, quality (the example sketch of the library, not that in the video, the other one, + serial.print()). I use an Arduino Mega, with RpLidar Tx,Rx connected to serial 1 of the Arduino Mega. But I obtain angles between 0 and 500, and distances between 0 and 15 (more or less) even if the Lidar is inside a shoes box. Thank you for your suggestions reguards this problem

[@donavonmartionson4724]

I love your presentation every informative and we'll presented but you left out a few uses that are and will soon be used for in the INTERNET of THINGS it will be used to catalog our homes with vacuum robots showing our homes layout, if you are there, how to get around your house security, and more. And at this point apple 🍎 has it in the new I-PHONE combined with geo- locating, microphone 🎤, 2 or more cameras, social media software pushing selfies, and more features most people don't even know about to better improve facial recognition limits our privacy not just being stolen by government but big business, Id theaves, scammers, and amping pain in the a$$ salespeople who will take any thing you have of value. They will push a few buttons to know how much money you have, how to take it from you leagaly or not. Buy your privatesy or through away your phone. At least I can aquire KNOWLEDGE from people like you at this point in time ty.

[@mrnickbig1]

Where the heck did you get the applications from for the RPLIDAR? The QUICK START card directs the user to go.slamtec.com/rplidar/download, but there are NO EXECUTABLE FILES, other than the driver install!

[@buggaboo2707]

20:20 Serial on UNO is on pins 0 and 1 ( not 1 and 2 )

[@EvileDik]

Hitachi make a very cheap SLAM component for manufacturing things like robot vacuum cleaners, there isn't a lot of data available at the moment for it, but you can pick up a HLS-LFCD2 for about £30 in the UK. I'm currently working on an arduino library for it by reverse engineering a linux driver I found.

[@santevandergugten3045]

Thank your for a very instructive and detailed video. Thanks! Subscribed!

[@Dronebotworkshop]

And THANK YOU for your subscription Sante!

[@TimothyChapman]

DIY laser scanner! Though the resolution probably isn't high enough to laser scan a race track.

[@tonyjoyce8576]

Wow , you know a lot about this subject. Could you tell me if Lidar could help me find an old graveyard that I have been looking for since 2001, it is an old graveyard in a heavily forested area, thank you for your help in advance. I am 69 years old and not very good at computers. Thank you . Regards Tony Joyce .

[@nigelman9506]

Excellent video, question, what's the MTBF of the Slip Ring in the LIDAR, what would be nice is to visually see a 2D plot of the area around the LIDAR on the computer screen

[@khatharrmalkavian3306]

Tch, I wanted to know how it does serial without a timing line.

[@uzmamhate1328]

Can the TF mini LiDAR also be used to plot a map for SLAM? The RPLIDAR is a little out of my budget for my project. I'd be grateful to hear from you or anyone that can help. Thanks. Great video.

[@KlockworXMusic]

The thing to consider is its a single point LiDAR. Take a pencil and put a dot on the wall, that is the point for the distance value you get from it. If you had it on a servo and moved back and forth, take that dot and draw a horizontal line on the wall, its length changes a bit depending on distance from the wall, that is now what you could get out of it, but there is problems with actually implementing that because you need to know the angle of the servo when the sample was taken. The 360 LiDAR gives a full slice, a line all the way around the room of the closest thing it has vision of, minus windows (With a higher quality unit you can map inside people houses from the street through their windows), and is already setup to tell you the distance and angle the sensor was at. If you only need a single point in one direction with the benefits of LiDAR for your system, a TF Mini can work, but if you need LiDAR points in multiple directions (two TF Minis pointed left and right as an example) you are getting into the price range of a 360 LiDAR which gives you way more then that. I imagine for what you are doing with SLAM you need more then a single point in one direction, so it would be worth saving up for the 360 LiDAR.

[@uzmamhate1328]

@@KlockworXMusic Hey, I never thought of it that way. Thanks for helping. I realize i cannot use TF mini for my project. I'll probably just save up for RPLIDAR. Thanks though. I appreciate the effort :)

[@KlockworXMusic]

@@uzmamhate1328 No worries. I find its usually better to get the better option, usually the more expensive option, right off the bat. If not, I end up buying it anyhow when the cheaper option doesn't work and then I have spent even more money. Hope the RPLiDAR works out for your SLAM needs.