HC-SR04 Ultrasonic Sonar Distance Sensor + 2 x 10K resistors
We have ✅ 5 available of the AF-3942 in our Sydney warehouse. An extra 100 units available with a short lead time.
The HC-SR04 is an ultrasonic distance sensor that measures distances from approximately 2 cm to 400 cm (best results between 10–250 cm). Widely used in robotics, automation, interactive art, and motion sensing projects.
The sensor requires 5V power and the Echo return signal is 5V logic. Two 10 kΩ resistors are included for use as a voltage divider, converting the 5V Echo signal to a safe 2.5V for 3.3V devices like Raspberry Pi.
Specifications
- Sensor – HC-SR04 ultrasonic ranging module
- Range – 2–400 cm (effective: 10–250 cm)
- Power – 5V DC
- Trigger – 3.3V or 5V logic
- Echo – 5V logic (use included resistors as divider for 3.3V devices)
Compatible With
- Arduino
- Raspberry Pi (with voltage divider)
- CircuitPython and MakeCode
Package Contents
- 1× HC-SR04 ultrasonic sensor
- 2× 10 kΩ resistors
The HC-SR04 Ultrasonic Sonar Distance Sensor + 2 x 10K resistors appears in the following collections:
