SENSORSPIR Motion Sensor (HC-SR501)
Detects people moving nearby. For alarms and automatic lights.
Price on request
Sensors
HC-SR04 Ultrasonic Distance Sensor
Price on request
The HC-SR04 measures distance with ultrasound, the same way a bat does. It sends a short burst of sound and times the echo. Use it for obstacle-avoiding robots, parking sensors, water-level meters and touch-free switches.
In the box
- 1 × HC-SR04 ultrasonic sensor
Specifications
Technical details
| Range | 2 cm to 400 cm |
|---|---|
| Operating voltage | 5 V |
| Ultrasonic frequency | 40 kHz |
| Pins | VCC, Trig, Echo, GND |
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