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CC3200: Interfacing with SHT21 problem

Huzaifah Limbada
Prodigy 30 points
Part Number: CC3200
Other Parts Discussed in Thread: ENERGIA

Hello!

I'm trying to interface the CC3200 launchxl with the SHT21 temperature sensor using I2C,

I'm doing the pin configuration as mentioned,

SCL = P01(9)

SDA = P02(10)

Note : Both pins are from P1 of J22(written on board).

Trying to attach the pull up resistors but not working.

Doing coding on the Energia.

Also removing the J2 and J3 as per the guidance.

Anyone have the solution or i have to do something different then mentioned.

Thanks in Advance!

  • 0
    TI__Mastermind 45586 points

    Hi Huzaifah,

    What side of the J2/J3 headers are you using for your I2C lines? The right side, not connected to the CC3200, has the 3.3K pull up resistors. So you'll probably need pull-up resistors.

    Can you try probing the SCL/SDA lines and seeing if data is being sent on them? I'm not experienced in using Energia, but can you roughly explain how you are initializing your temp sensor? Pictures of your hardware setup might help me as well.

    best,

    Kevin