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Wireless Temperature Sensor

Kerbasi Ugarte
Prodigy 30 points
Other Parts Discussed in Thread: MSP430BT5190

Hello, 

I am currently trying to use an MSP430 microcontroller to take temperature readings of water at different times and transmit this data wirelessly to an arduino/raspberry pi. I am a beginner when it comes to using the MSP430 so my knowledge is basic. Any help/suggestions would be very much appreciated.

- Need help with deciding what wireless bluetooth sensor to use and how to connect it.

- Need help with how to connect a K-type thermocouple to the MSP430.

thank you very much!

  • 0
    Guru 227245 points

    Break the problem down in separate parts.

    Part 1: clock system setup and timing control
    Part 2: accessing the sensor
    Part 3: wireless transmission.

    Get everything running separately, then fuse the three.

    For BT, you can use the standalone CC3000 module or one of the BT compatible modules with a local BT stack. When using the MindTree BT stack, you'll need the MSP430BT5190, as it includes a license for the stack.

    For sensing the thermocouple, you'll need an MSP with A/D converter (most have).
    And depending on the sensor you'll need some external circuitry that does any required amplification (chopper-OpAmp) or linearization. It's best to have a resulting (more or less) linear voltage of 0..1.5V across the intended operating range, so you can use full resolution of the ADC10 or ADC12 (using 1.5V internal reference).

  • 0 in reply to Jens-Michael Gross
    Prodigy 30 points

    Hello,

    So I have received the CC3000BOOST package and was wondering about how it would actually relay information from a remote sensor to an Arduino, since it is for Wi-Fi rather than bluetooth.

    Would I have to get a component for the Arduino that allows it to be Wi-Fi capable as well so that they can both communicate wirelessly?

  • 0 in reply to Kerbasi Ugarte
    Guru 46710 points

    Kerbasi Ugarte said:
    So I have received the CC3000BOOST package and was wondering about how it would actually relay information from a remote sensor to an Arduino, since it is for Wi-Fi rather than bluetooth.

    You mentioned Raspberry Pi too. So forget about Arduino, use Raspberry with USB WiFi adapter. Like this:

    http://www.adafruit.com/products/814

  • 0 in reply to Ilmars
    Prodigy 30 points

    Thank you very much for the help. I was wondering if there were any sample codes for the MSP430 integrated with the CC3000BOOST that you could provide me with.

  • 0 in reply to Kerbasi Ugarte
    Guru 46710 points

    Kerbasi Ugarte said:
    Thank you very much for the help. I was wondering if there were any sample codes for the MSP430 integrated with the CC3000BOOST that you could provide me with.

    Did you try looking cc3000boost web page? http://www.ti.com/lit/zip/swrc261

    Using msp430 for WiFi applications is bad joke in my opinion. But good luck!

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