eplanet Posted November 4, 2011 Report Share Posted November 4, 2011 hi friendsplease see this attachment. can i use potentiometer for change MQ4 sensitivity before transistor ? Quote Link to comment Share on other sites More sharing options...
Hero999 Posted November 5, 2011 Report Share Posted November 5, 2011 How are we supposed to know?You've posted no schematic and no information about the gas sensor or any of the other components you plan to use. Quote Link to comment Share on other sites More sharing options...
eplanet Posted November 7, 2011 Author Report Share Posted November 7, 2011 hiif you read this post you will see i said MQ4(gas sensor)and i want to know can i use potentiometer after output of this sensor for change sensitivity?thanks Quote Link to comment Share on other sites More sharing options...
Hero999 Posted November 7, 2011 Report Share Posted November 7, 2011 if you read this post you will see i said MQ4(gas sensor)I read your post. I just don't see why i should help you when you can't even be bothered to post the schematic and datasheet. Quote Link to comment Share on other sites More sharing options...
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