Two Sensor Pack HC SR04 Ultrasonic Distance Sensor For Arduino ESP32 ESP8266 And Raspberry Pi With 2cm To 450cm Range 5V Logic 3V3 Ready For DIY Robotics Obstacle Avoidance And Precise Distance Measurement

Two-Pack HC-SR04 Ultrasonic Distance Sensor Kit 5V
✔️ Two HC-SR04 units, 2cm-450cm range, 3.3V/5V logic ready

Two ultrasonic distance sensors in one package, built for DIY robotics projects. They measure distance to objects for obstacle avoidance and proximity sensing, and work with Arduino, ESP32, ESP8266, Raspberry Pi, or any 5V/3.3V microcontroller.

✅ Operating voltage: 5V
✅ Logic voltage: 3.3V or 5V
✅ Detection range: 2 cm to 450 cm
✅ Trigger input pulse width: 10 μs
✅ Static current: less than 2 mA
✅ Sensor angle: less than 15 degrees
✅ Echo signal output: TTL PWL signal
✅ Size: 45 x 20 x 15 mm
✅ Weight: 10 g

💡 What is a handy use case for ultrasonic distance sensors in DIY robotics?

They help robots detect obstacles and gauge distance in real time so you can program safe paths.

- handy for obstacle avoidance in Arduino/ESP32/Raspberry Pi projects - measures distance from 2 cm to 450 cm with TTL output - 5V and 3.3V logic compatibility for wide variants - great for mapping, proximity sensing, and basic autonomous movement