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ANT+ or BLE for a P2P application

Hi,

I'm designing a wearable, low power inertial and EMG system and have to choose between using ANT+ or BLE with the Nrf51422 on my own board.

The system would simply be a P2P with the wearable sending data for most of the time (Maybe receiving some small packages for settings at start). The data rate would be 11 byte at a speed of 1KHz so turning the Radio-module to sleep between transmitions is a possibility.

I have the evaluation kit so I have the possibility to use the Nrf51822 PCA10000 board or the ANT+ USB dongle as reciever. Range of the transmission is not important, 2 or 3 meters should suffice. Being able to connect to a smartphone or laptop without extra adaptor is an extra feature that would be nice but isn't necessary.

The most important feature is power consumption. The system would be using a battery so a lifetime of 24h is the minimum.

I'm using Eclipse and at the moment all the other modules are programmed but now I'm in the stage of communication and putting everything together.

I'm however still not sure which is best ANT+ or BLE and which Sofdevice protocol. I think BLE would be more power efficient and more secure but is more difficult to implement.

Does somebody has some arguments that I'm on the correct path or better change to ANT+

Many thanks

Sebastien

  • One last small thing: You're saying that the development dongle can handle 128kbps but with which softdevice is this than? Because as said the S120 cannot handle this data throughput and S110 isn't really made as a continuous reciever or am I wrong?

    Thanks a lot!!

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