LIDAR-Lite v3 Hookup Guide

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Contributors: Shawn Hymel
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Hardware Assembly

Follow the diagram below to connect the LIDAR unit to a RedBoard or other Arduino-compatible board. The LIDAR-Lite can communicate over I2C as well as use a pulse-width modulated (PWM) signal to denote measured distances. For this guide, we will show how to use I2C to communicate with the LIDAR unit.

LIDAR-Lite v3 to Arduino hookup

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Note: Garmin recommends a 680 μF capacitor, but anything near that value will work. I used a 1000 μF capacitor in this example. Make sure to add the electrolytic capacitor correctly to the circuit since it has a polarity.

You also may need I2C pull-up resistors for the SCL and SDA lines. It depends on the length between the Arduino and I2C device but usually a 4.7kΩ resistor is a good start. For long runs or systems with lots of devices, it is recommended to use smaller resistors. You can also use a I2C bus extender for distances beyond the maximum bus length as well.

Resistor Kit - 1/4W (500 total)

Resistor Kit - 1/4W (500 total)

COM-10969
$8.95
187
SparkFun Capacitor Kit

SparkFun Capacitor Kit

KIT-13698
$8.95
13
Electrolytic Decoupling Capacitors - 1000uF/25V

Electrolytic Decoupling Capacitors - 1000uF/25V

COM-08982
$0.45
1

SparkFun Differential I2C Breakout - PCA9615 (Qwiic)

BOB-14589
15 Retired