SENSORSHC-SR04 Ultrasonic Distance Sensor
Measures distance from 2 cm to 4 m. A must for obstacle-avoiding robots.
Price on request
Sensors
PIR Motion Sensor (HC-SR501)
Price on request
A passive infrared (PIR) sensor that detects the body heat of a person moving in front of it. Two dials on the board set the sensitivity and how long the output stays on. Popular for burglar alarms, automatic lights and visitor counters.
In the box
- 1 × PIR motion sensor with lens
Specifications
Technical details
| Operating voltage | 4.5–20 V DC |
|---|---|
| Output | Digital, 3.3 V high |
| Detection range | Up to about 7 m, adjustable |
| Hold time | Adjustable |
| Pins | VCC, OUT, GND |
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