1pcs MQ-2 MQ2 Smoke Gas LPG Butane Hydrogen Gas Sensor Detector Module for arduino
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1pcs MQ-2 MQ2 Smoke Gas LPG Butane Hydrogen Gas Sensor Detector Module for arduino

$2.51
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5pcs/bag MQ-2 MQ2 smoke sensor gas sensor HC-05Main , main switch from integrated Bluetooth serial module from the available instructions, instruction rich range( Supply voltage 3.3V ~ 3.6V) HC-06Main , main switch from integrated Bluetooth serial module from the available instructions, instruction than HC-05, easy to use.( Supply voltage 3.3V ~ 3.6V) Host:Used to search from the device , other devices can not be search . ( With white spots Bluetooth module ) Slave :Equipment used to be searched , you can not take the initiative to search for other devices. After connecting the master and slave is equivalent to using a serial line , this time , regardless of master and slave , which is transparent mode . [ This module can be set to master or slave , master and slave pair can communicate between slave and from the host machine or host Can not communicate between , from the Bluetooth function and computers, mobile phones and other communications pairing , the default is the

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