LIDAR-Lite v3 Hookup Guide
Contributors:
Shawn Hymel
Shawn Hymel 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.
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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.
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.
