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MQ-5 MQ5 MQ-3 MQ3 sensor module
- Product description: MQ-5 MQ5 MQ-3 MQ3 sensor module alcohol ethanol gas sensitive detection alarm for arduino DIY KIT
PRODUCT INTRODUCTION
MQ-5 MQ5 MQ-3 MQ3 sensor module alcohol ethanol gas sensitive detection alarm for arduino DIY KIT
1 has a signal output instructions .
2 dual signal output ( T TL level output and analog output )
3 effective signal , TTL output for low level . ( When output low level lights light up , can be directly connected single - chip )
4 0~5V analog output voltage , higher the concentration , the higher voltage .
5 ethanol vapor has a high sensitivity and good selectivity .
6 with long periods of stability and service life
7 rapid response recovery characteristics
Five application :
For motor vehicle drivers and other non - drinking workers on-site inspection , also used in other places at the ethanol vapour detection
VCC: positive power supply (5V)
GND: power supply is negative
DO: TTL switching signal output
AO: analog signal output