5-Pack HC-SR04 Ultrasonic Sensor, I2C / UART

• 4 SELECTABLE MODES — I2C, UART, 1-WIRE & GPIO Choose from four communication modes on a single sensor: I2C and UART for multi-sensor buses with minimal pins, 1-Wire for ultra-low pin count, and standard GPIO (Trig/Echo) for direct drop-in use. Adapt the same sensor to robotics, automation, and multi-node setups without rewiring.
• GOLD IMMERSION PLATING Gold-plated PCB for good corrosion resistance and conductivity. Built by Lonely Binary for distance measurement in maker and prototyping projects.
• BRICK-COMPATIBLE DESIGN Integrate with standard building bricks using the included assorted brick and join adapters — add sensing to custom models such as cars, planes, or interactive structures without soldering or modifications.
• 5-PACK BUNDLE WITH ACCESSORIES Includes five Gold Edition ultrasonic sensors, one set of assorted brick and join adapters, and a protective storage container to keep components organized — suitable for hobbyists, educators, or multiple prototypes.
• WIDE MCU COMPATIBILITY Works with 3.3V to 5V microcontrollers including Arduino, Raspberry Pi, Raspberry Pi Pico, Nano, and ESP32. Open-source library support for IoT, obstacle avoidance, and distance logging.

Specifications