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Abt gas sensor — Parallax Forums

Abt gas sensor

ladladladladladlad Posts: 6
edited 2012-06-14 18:11 in Learn with BlocklyProp
I'm currently doing a project using LPG gas sensor 27932 and msp430.

As its my first time using both device. I have many doubt to it.

Is there anyway to keep de voltage as low as possible/mantaining it at a certain voltage at TP 1 and TP 2 without any Microcontroller connecting to it or using the msp to do it or adding a resistor / bjt into de module.



As I know de voltage between TP 1 and TP 2 changes due to the the amount/concentration of gas it detect. I would like to use it to b de input for my device.

Comments

  • ladladladladladlad Posts: 6
    edited 2012-06-14 18:11
    my friend tired using tis circuit to pull down de voltage at TP 1 and TP 2,
    circuit.jpg


    The voltage does not stop incresing after using it, but somehow the voltage between the 2 point goes down after testing the sensor with gas.
    1024 x 819 - 71K
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