Environment

• Raspberry Pi 3B+
• Raspbian GNU/Linux 9.4
• Python 3
• HC-SR04 Ultrasonic Module
• 3.3V-5V Logic Level Converter CYT1076
• SunFounder I2C LCD Module Display 16×2

Code

Result

Reference

• Drive i2c LCD Screen with Raspberry Pi « osoyoo.com
• Using a Raspberry Pi distance sensor (ultrasonic sensor HC-SR04)