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Bluetooth solution like PAN1325+MSP430

Other Parts Discussed in Thread: CC2540, TAS2505, CC2564, BLE-STACK, MSP430F5438A

Hi,

We are trying to design some Bluetooth device with basic ADC and RF function. It should be Ultra-small and low power consumption.

PAN1325+MSP430 solution seems nice. However, we are not satisfied with the size and the power consumption.

So, do you have any other Bluetooth solution with smaller size and lower power consumption?

PS. We want to connect with a mobile phone so cc2540 is not an option.

 

Thanks very much!

  • Xinyu,

             Thank you for your interest in TI products. At this moment, we have only PAN13xx+MSP430 and PAN13xx+Stellaris Platform solutions.

             What is the size and power consumption you are looking for?

    Regards,

    ~Miguel

  • Miguel,

    Thanks very much for your quick responses.

    Ideally we hope we can design a device with a size of 10mm*20mm and a power consumption of about 30mA when transmit data. The function we need is quite simple so we guess it is possible. We are new in Bluetooth thus we don't know if our target is realistic.

    I checked some Bluetooth modules using Bluecore04-Ex from CSR, and their power consumptions are about 30mA. However the PAN1325 specification document indicates 40mA.

    Xinyu

  • Xinyu,

                The 40mA current consumption refers to a full BT controller throughput scenario. Actually, you will never hit this scenario due to the UART bottleneck between the MSP430 and the BT controller. Furthermore, you can reduce the output power which will reflect directly on your current consumption. How much data do you need to transfer? What is the throughput you are looking for?

               From the size perspective, it looks like you are right on the border with the 10mm*20mm to fit the complete solution.

    Regards,

    ~Miguel

  • Miguel,

    Thanks so much for your correction. That's very helpful!

    We may use all 14 ADC channels in MCU so we have about 14*12*1K = 168K data to transfer per second.

    Regards,

    Xinyu

  • Xinyu,

              The throughput should be achievable using 25MHz and 921.6Kbps baud rate. This is assuming there is no other activity executed on the MSP430 at the same time.

    Regards,

    ~Miguel

  • Hello everyone,

    I am trying to implement a Dual mode bluetooth solution using the CC2654 chipset, also keeping an option for integrating audio (along with TAS2505 from TI) later on in the development process. For the MCU, I will go with MSP430 or ARM cortex series from TI as it will come with pre-integrated Bluetopia stack.

    But for initial test purpose, I want to implement my code on an experimenter board. I already have the CC2564 evaluation module from TI. So can I order the MSP430 launch pad to integrate both and test my code or should I need to go for a different one. Altogether it should cost me less (for the boards) because it is just for evaluation purpose for now.

    How about if I want to go for ARM cortex M3 core MCU from TI, will it fit into my requirement and cost. Please provide me with the corresponding experimenter boards.

    Also please provide me with the code development platform for the same. I know that CooCox is an open source IDE for the Cortex series, right.

    Thanks,

    Gaurav

  • I think you can use the CC2540 as physical layer, if you special care the power consumption, according your application, base Bluetooth 4.0 protocol, BLE-Stack. MCU you can considerate the FRAM wolverine series: http://www.ti.com/ww/en/mcu/wolverine/?DCMP=wolverine&HQS=wolverine-pr-lp
  • Hi,

    You can use MSP430F5438A+ CC2564B should do the be fine for your application. So that you can directly run the application available for testing purpose. 

    Yes you can use the MSP430 launch pad as well. But you need to make sure your HW/SW porting is correct.

    IDE you can use CCS(trile version has data limitations) or IAR, as the Bluetopia provides example projects for both the IDEs