Example Code for Raspberry Pi-Distance Measurement

Hardware Preparation

• TF02-i LiDAR x1
• Raspberry Pi x1
• USB to RS485 Module x1

Software Preparation

Install wiringpi library.

Wiring Diagram

Other Preparation Work

Install wiringpi library:

cd /tmp
wget https://project-downloads.drogon.net/wiringpi-latest.deb   //download wiringpi library
sudo dpkg -i wiringpi-latest.deb  //install wiringpi library
cd Desktop/          //enter desktop folder
git clone https://github.com/DFRobotdl/TF02-i.git     //download the sample code and save it on the desktop
cd TF02-i/

Check USB device:

Type in the terminal

sudo ls -l /dev

Find the USB device that has just been connected to the Raspberry Pi (Every time the USB device is connected to the Raspberry Pi, the device port will change, so you need to check the actual port each time you connect the device to the Raspberry Pi).

Sample Code

Compile and run the sample code:

gcc -Wall -lwiringPi -o TF02 TF02.c
sudo ./TF02

Result

Finally, you can see the accurate measured distance value.