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How to connect 3V sensor to BS — Parallax Forums

How to connect 3V sensor to BS

VitaliyVitaliy Posts: 2
edited 2009-03-17 04:13 in BASIC Stamp
Hello, Could anybody explain me the basic idea how to connect 3V sensor (SCP1000-D01 from VTI) to BS2p? I mean how to convert 3V levels of the sensor to 5V levels of the BS?
Thank you!

Comments

  • ProcessingData...ProcessingData... Posts: 208
    edited 2009-03-16 23:56
    Well, do you have the 3v power for the sensor? If not you can use a step-down power chip to get the voltage you need. Also (Correct me if I am wrong everyone,) I belive that any voltage·over 0v is counted as a 1, Or High.

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    Basic Stamp,···· Propeller,·· · SX,·· FUN!


    START:·
    >Proccessing Data. . . .··
    >Task Complete. . .·.
    >Saving Data. . . .
    >Entering SLEEP Mode. . . .
    >Signing OFF


    ·
  • JohnBFJohnBF Posts: 107
    edited 2009-03-17 01:16
    The Basic Stamp interprets voltages from 0 to 1.4 as low and voltages above 1.4 as high (What's A Microcontroller? p. 148).

    /John
  • PJAllenPJAllen Banned Posts: 5,065
    edited 2009-03-17 01:25
    3V_5V_mosfet.jpg
  • ProcessingData...ProcessingData... Posts: 208
    edited 2009-03-17 02:14
    JohnBF Said: The Basic Stamp interprets voltages from 0 to 1.4 as low and voltages above 1.4 as high (What's A Microcontroller? p. 148).
    Thank you for the correction. I will store that in my memory banks for future use.

    ▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔
    Basic Stamp,···· Propeller,·· · SX,·· FUN!


    START:·
    >Proccessing Data. . . .··
    >Task Complete. . .·.
    >Saving Data. . . .
    >Entering SLEEP Mode. . . .
    >Signing OFF


    ·
  • VitaliyVitaliy Posts: 2
    edited 2009-03-17 04:13
    So If I get you rigth I can connect TX pins from sensor to MC directly and TX pins from MC to sensor using simple resistive divider ?
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