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The XL6009 Step Up module is one of the widely used modules
MQ-3 Gas Sensor Module Pin Description
Digital Sides:
Adjust sensitivity — Turn the blue potentiometer knob clockwise to increase the detection range (up to ~30 cm) or anticlockwise to reduce it (down to ~2 cm)
DB9 Male Straight Connector IoT/Robotics Lab The XL6009 Step Up moduleDB9 Male Straight Connector The most common type of electrical connector is the DB9 male Welded Connector. The D sub miniature (D sub) connector plug and socket family for computer and communication devices includes the DB 9 connector. DB 9 pins are organized in two row rows, with one five pin row above a four pin row. The EIA TIA 232 serial interface standard determined the function of all nine pins as a standard so that multiple companies could
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