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BLE MCU PCB I2C connections - Battery power

Wesley Sgroi49
Prodigy 30 points
Other Parts Discussed in Thread: CC2650

Hello - I am looking for a BLE Microcontroller that can be shipped on a battery powered PCB for connection to multiple I2C sensors.  I currently have the sensorTag but I it appears I can only connect an external sensor through the Debugger Devpack which requires a USB power source.  This is defeating the purpose of the wireless battery powered solution.

Is there a pre-existing product from TI that offers a basic version of the sensorTag (less sensors) and allows for direct connection to additional I2C sensors to be powered by the PCB battery?

Thank you for your help,

Wesley

  • 0
    TI__Mastermind 34660 points
    Hello. The sensor tag, launchpad, and smart rf board can all be powered by battery. You can configure I2C to any pins that you want so you should be able to connect i2c sensors to any of these.
  • 0 in reply to Tim C
    Prodigy 30 points
    When I plug the debug devpack into the sensortag, the sensortag no longer broadcasts or allows bluetooth connections. Do I need to modify the cc2650 firmware with code composer to enable it to run while the devback is connected to it? Or are you suggesting an alternative method to connect an I2C sensor to the sensortag without the devpack? Thanks
  • 0 in reply to Wesley Sgroi49
    Prodigy 30 points
    Hello - just to clarify, unless the devpack sensorTag is plugged in via USB, the sensorTag does not appear to function. So it seems while the devpack is plugged into the sensorTag, the sensorTag will not power up. Is there anyway to bypass this control to allow the sensorTag to powerup while the devPack is connected? Thank you!