Description: It’s back! This is the LIDAR-Lite v3, a compact, high-performance optical distance measurement sensor from Garmin™. When space and weight requirements are tight, the LIDAR-Lite v3 soars. The LIDAR-Lite v3 is the ideal solution for drone, robot or unmanned vehicle applications.
This easy-to-use 40-meter laser-based optical ranging sensor has all the core features that made the LIDAR-Lite v2 so popular. Small in form and light in weight with low power consumption of less than 130mA during an acquisition. And it’s user-configurable so you can adjust between accuracy, operating range and measurement time.
Each LIDAR-Lite v3 features an edge-emitting, 905nm (1.3 watts), single-stripe laser transmitter, 4 m Radian x 2 m Radian beam divergence, and an optical aperture of 12.5mm. The third version of the LIDAR-Lite still operates at 5V DC with a current consumption rate of <100mA at continuous operation. On top of everything else, the LIDAR-Lite is user-configurable, allowing adjustment between accuracy, operating range and measurement time. It can be interfaced via I2C or PWM with the included 200mm accessory cable.
Note: CLASS 1 LASER PRODUCT CLASSIFIED EN/IEC 60825-1 2014. This product is in conformity with performance standards for laser products under 21 CFR 1040, except with respect to those characteristics authorized by Variance Number FDA-2016-V-2943 effective September 27, 2016.
Dimensions: 20 x 48 x 40 mm (0.8 x 1.9 x 1.6 inches)
Based on 12 ratings:
1 of 1 found this helpful:
I’m very happy with this little unit. Setup was a breeze and the accuracy in my use case (detecting block walls) is excellent. I honestly expected much less than the unit delivered, and feel it was worth the price. I’ve used many sonar and IR based units before and found this unit to be much more reliable. If you are picking this up for an Arduino, make sure you have a hefty capacitor on the power line, it pulls a fair bit of current on turn-on, they recommend a 680uf cap.
1 of 1 found this helpful:
I design and work with scientific LIDAR for the University of Colorado and I am impressed with this device. Generally, a time-of-flight LIDAR with this sort of range resolution is difficult due to the amazing speed of light and high speed needed for acquisition. This device uses a nifty trick to solve this, doing a really nice job of centimeter-ish range resolution in a small low-power and easy-to-use package. I was able to have an operational device in just a few minutes using an Arduino.
1 of 1 found this helpful:
I purchased this to detect reflective poles at distances up to 90 feet. The distance to each pole being predetermined to avoid surrounding items. The results are used for triangulating location and heading for outside AGV navigation. It was able to clearly detect a quarter inch wide reflective strip at 50 feet using the default settings as delivered. Modifying the settings should provide a very robust and reliable method of detection once mounted on a rotating base.
1 of 1 found this helpful:
I bought this for obstacle detection on an aerial drone. It worked exactly according to the included instructions in the PWM mode. I did need to add a large capacitor 1000 uF (less may be fine) to insure it initialized properly on every power up. The manual showed the capacitor in the I2C but was not clear that it is needed in the PWM mode.
When I interfaced this with a PixHawk autopilot I found that the recommended series resistor on the trigger line did work. Connected the trigger line directly to the PixHawk Aux pin and it seems to be functioning well. I will be flight testing this week with it.
1 of 7 found this helpful:
I have to wait to review this unit as the required electrolytic capacitor and resistors were NOT included for the $150 price. As soon as they arrive and I futz around with installing external discrete componentry, I can give a review. So far, not pleased. Updates to come later.
Works well and Arduino library is basic but working. I had hoped to use this with retroreflective targets, but they tend to overload the receiver, and you get ambiguous results. I will continue to experiment.
Mainly because it’s small enough to mount on a mid-sized multi-rotor, I know the wiring and I sold #2, so needed another one.
I use them solely for distance measuring, as a radar altimeter and object ranging, having them mounted on servos that follow the camera’s gimbal tilt. I use them PWM, connected to a Pitlabs OSD board, which then displays the distance in the video stream.
For me, the device works as advertised, reliably showing distance from 1-150ft. The PWM signal needs a 470ohm resistor to trigger it continuously.
In the crappy news Dept., it’s pretty disheartening to pay 50% more than the first two with that fancy Garmin sticker on it.
i have not received your shipment for this. Where is it?
According to the tracking number, it was delivered on 1/04/17 at 12:45. Hopefully you’ve gotten it by now, and will have a chance to work with it soon. Once you do, please let us know what you think!
0 of 5 found this helpful:
Because i’ve been busy with other stuff.
I have high hopes for the Lidar sensor to sense distance and direction on a outdoor robot. In this installation, the Lidar sits on a 180 rotation servo to provide the angle to the object detected. The outdoor tests have been more successful than with other sensors tried for this purpose. It is being used in the PWM mode now because the Arduino mega serial ports are busy. Yeah, I know. So far, so good.
Range and refresh rate set this sensor apart from other range detectors such as the Maxbotix outdoor sensors which are comparably priced. Not only can the LIDAR resolve objects farther, it is able to “see” soft and non-reflective objects such as people. Also, it can refresh hundreds of times a second as opposed to a 6Hz refresh on the outdoor Maxbotix’s gear.
One complaint, there is a fair bit of noise in the data stream - especially when it does not get any / a strong return. You will need to filter and that will reduce the effective refresh rate.
The V3 pinout, default address (0x62), and functionality the same as the V2. However, the connector and cable for the V3 are different compared the V2.
How the LIDAR-Lite v3 Works with Reflective Surfaces => https://support.garmin.com/faqSearch/en-US/faq/content/IVeHYIKwChAY0qCVhQiJ67
Lidar LIte V3 3D Scanner [ https://www.youtube.com/watch?v=gCpCGkwwy8I#t=88.065419 ]
If you happen to see this output using the I2C example code [ https://github.com/garmin/LIDARLite_v3_Arduino_Library/blob/master/examples/GetDistanceI2c/GetDistanceI2c.ino ] with the decoupling capacitors connected to the Arduino:
> nack > nack > nack
you probably do not have a secure connection between the Lidar and the Arduino. I2C is sensitive to its connection. The cable wires are thin and can disconnect when in the Arduino Uno’s female header from a bump. A breadboard seems to work fine if there is not a lot of mechanical vibrations. However, a small bump can mess up the timing for the I2C even on the breadboard.
For a secure connection, I recommend soldering header pins with some heat shrink or make sort of adapter when connecting it to an Arduino. Once disconnected, the Arduino might stop outputting sensor data. You can reset the Arduino for testing but to prevent the wires from disconnecting, it would be better to solder the wires to header pins. This is a common “issue” with any I2C sensor and if they do not secure the wires, the Arduino will have problems talking with the Lidar Lite V3.
For the Lidar Lite V3 Wand used in the demo video, Nick Poole basically used the same parts and example code [ https://github.com/NPoole/LIDAR-Lite-Glasses/blob/master/Firmware/LIDAR-Lite-Glasses.ino ] that was used with the Lidar Lite V2 Glasses. For the Lidar Lite V3 Wand, he added LEDs, micro-b USB breakout [ https://www.sparkfun.com/products/12035 ], micro-B USB Cable, and a backup portable cell phone charger. He happened to have a 5V/16 MHz Pro Micro around when building the project for the Lidar Lite V2 Glasses. The parts were reused for the Lidar Lite V3 Wand. Try looking at the old wishlist for the Lidar Lite V2 Glasses [ https://www.sparkfun.com/wish_lists/106741 ] for more information. Make sure to also add a resistor when using the PWM wiring [ https://www.sparkfun.com/products/13760 ] as stated in the user manual on page 3 - http://static.garmin.com/pumac/LIDAR_Lite_v3_Operation_Manual_and_Technical_Specifications.pdf.
You can find a replacement Lidar Lite V3 cable in our catalog here => [ https://www.sparkfun.com/products/14043 ]. The Lidar Lite V3 cable is not the same cable that was used with the Lidar Lite V1 and v2.
Unfortunately, we do not have a 680uF capacitor. We have a 1000uF capacitor [ https://www.sparkfun.com/products/8982 ] which can work as a substitute with the Lidar Lite. You can also wire capacitors in series and parallel to get an equivalent capacitance [ https://learn.sparkfun.com/tutorials/capacitors#capacitors-in-seriesparallel ].