Infrared Obstacle Avoidance Sensor Module
Highlights:
1. Detection distance: 2-40cm
2. IO Interface: 4-wire interfaces (- / + / S / EN)
3. Output signal: TTL level
4. Adjustment: adjust multi-turn resistance
5. Effective angle: 35 °
Pir Sensor HC-SR501
Highlights:
1. Wide Working Voltage Range: DC 4.5V- 20V
2. Current Drain: <60uA
3. Detection Angle: <140°
4. Detection Distance: 3 to 7m (can be adjusted)
5. Blockade time: 2.5s (Default)
6. Work temperature: -20-+80°C
TCRT5000 SENSOR Module
Highlights:
1. Operating Voltage: 3.5V-5V
2. Supply Current: 15mA
3. Optimal Sensing Distance: 3mm
4. Designed with the reflected infrared sensor, indicator light.
5. Built in a potentiometer for sensitivity control.
6. On-board LM393 voltage comparator chip and infrared sensing probe TCRT5000L
7. Signal detection sensitivity can adjust
8. Reserve all the way more circuits (P3 voltage drawn)
Ultrasonic Sensor Module HC-SR-04
Highlights:
1. Affordable Price
2. Operating Voltage: 5 V
3. Sonar Sensing Range: 2-400 cm
4. Max. Sensing Range: 450 cm
5. Frequency: 40 kHz