Electronic Sensors

Microphone Sensor AVR PIC Sound Detection
In-Stock
High Sensitivity Microphone Sensor AVR PIC Sound Detection Module
The module has 2 outputs: AO, analog output, real-time output microphone voltage signal; DO, when the sound intensity reaches a certain threshold, it outputs high and low level signals, [threshold-sensitivity can be adjusted by potentiometer]
MQ-135 Air Quality Gas Detection Sensor
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MQ-135 Air Quality Sensor Hazardous Gas Detection Sensor Module Environmental Measurement
Main chip: LM393,MQ-135 gas sensor
With high sensitivity and good selectivity for air quality, harmful gas detection.
With the DO switch signal (TTL) output and AO analog signal output
HC-SR501 Adjust IR Pyroelectric PIR Motion Sensor
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HC-SR501 Pyroelectric Infrared PIR Motion Sensor Modules for Microcontrollers
automatic sensor:when enter the sensor,output range is high,when people leave the sensor, range of the automatic off, output low
temperature compensation,Blockade time: 0.25 seconds
Speed Sensor IR Optocoupler Module
In-Stock
LM393 Chip Motor Measuring Comparative Speed Sensor Module Slot Type IR Optocoupler
Product Name : Speed Sensor Module;Working Voltage : DC 3.3-12V
Main Chip : LM393;PCB Board Size : 33 x 14mm/ 1.3" x 0.55" (L*W)
Slotted Width : 5mm/ 0.2";Hole Size : 3mm/ 0.12"
SHARP GP2Y0A02YK0F Infrared Sensor 20-150cm + Cable
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SHARP GP2Y0A02YK0F Infrared Proximity Sensor Detect 20-150cm Distance Long Range
Range 20cm ~ 150cm; Supply voltage 4.5V ~ 5.5V ; Current :33mA power
Voltage - Output (standard value) @ a distance under the conditions of 400mV @ 150cm
Voltage - difference (standard value) 2.05V @ 20 ~ 150cm