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Output voltage of the BASIC home-work board — Parallax Forums

Output voltage of the BASIC home-work board

prestonaltreeprestonaltree Posts: 6
edited 2009-02-08 08:15 in BASIC Stamp
Hello,

I am currently needing the output voltages for the BASIC stamp home-work board. This is because I see that the input voltage is 9V (from a 9V battery) and I have a temperature sensor from the "Vernier" company that fits in the pins of the board, but necessitates a power source of 5v. I can do calculations to find the resistance/capacitance, but I'm not sure if the home-work board already outputs 5V (that gets inputted into all sensors/motors that get plugged into it).

Thanks for your help!

Preston Altree

Comments

  • Mike GreenMike Green Posts: 23,101
    edited 2009-02-07 21:44
    The sockets on the Homework Board marked "Vdd" are +5V (and "Vss" is ground or 0V). The Stamp regulates the input voltage at currents up to about 50mA.
  • FranklinFranklin Posts: 4,747
    edited 2009-02-07 21:46
    The unregulated voltage is 9v but the regulated voltage should be 5v. If not something is wrong and you should check it out before continuing

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    - Stephen
  • ercoerco Posts: 20,259
    edited 2009-02-08 08:15
    Don't forget that the HW board, unlike a BS2, has series 220-ohm resistors on all of the i/o pins. That can affect an RC circuit somewhat.

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    ·"If you build it, they will come."
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