HC-SR501 PIR Motion Sensor Module

GY-521 module featuring the MPU6050 accelerometer and gyroscope for motion-sensing and orientation projects.

• Working voltage 5V
• Output format: Digital switching output (0 and 1), and analog voltage output AO
• Potentiometer adjust the sensitivity
• Uses a wide voltage LM393 comparator
• Comparator output signal clean waveform is good, driving ability, over 15mA
• Anti-oxidation, anti-conductivity, with long use time
• With bolt holes for easy installation
• Small board PCB size: 3.2cm x 1.4cm

Motor Speed Encoder Sensor Module

• VCC Connect the positive 3.3 5 V power supply
• GND Connect power negative
• DO TTL switch signal output
• AO This module does not work

Infrared Receiver 3-PIN. An infrared receiver for compatible remote-control signals.