Sensors
MQ-3 Alcohol Gas Sensor
Pin Description
For MQ-3 Sensor Module
Pin Name
Description
VCC
MQ-4 Methane Gas Sensor
MQ4 Gas Sensor Pinout Configuration
For MQ-4 Sensor Module
Pin Name
Description
VCC
LM335 Temperature Sensor
Pin Configuration
Pin No.
Pin Name
Description
1
Adj
GY-BMP280 Module
GY-BMP280 Pin configuration
Pin No.
Pin Name
Pin Description
1
Piezoelectric Sensor
Piezoelectric Sensor Pin Configuration
Pin Name
Description
Outer Circle
This gives Negative output voltage
Pulse Sensor
Pulse Sensor Features and Specifications
Biometric Pulse Rate or Heart Rate detecting sensor
Plug and Play type sensor
Operating Voltage: +5V or +3.3V
Current Consumption: 4mA
Inbuilt Amplification and Noise cancellation circ
TCRT5000 IR Sensor
Pin Configuration
1
Collector
The collector of the phototransistor is connected to +5V
2
Emitter
DS18B20 Temperature Sensor
Pin Configuration
No:
Pin Name
Description
1
Ground