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Arduino MQ-2 gas sensor example

The MQ-2 gas sensor has high sensitivity to LPG, Propane and Hydrogen, also could be used to detect Methane, it is low cost and suitable for several different applications. Characteristics * Good sensitivity to Combustible gas in wide range * High sensitivity to LPG, Propane and Hydrogen * Long life and low cost * Simple drive circuit Application * Domestic gas leakage detector * Industrial Combustible gas detector * Portable gas detector The sensitivity of the sensor can be adjusted by using the potentiometer that is fitted…

Arduino Single-Sided Serial Board

A DIY Arduino board which you can etchby hand and solder it together. It is pin-compatible with the Arduino Diecimila, and should work with any Arduino shield. EAGLE files (.zip) Manual (.pdf)