Sending larger than 8bit ADC values using heartrateBpm

Ville Tikkanen

Hello,

I'm doing some experimenting with ADC which is based on the heartrate sample application. Is it possible to send larger than 8 bit values on the heartRateBpm and how is this archieved. So far my code is very simple and it uses following API's.

HalAdcSetReference

HalAdcRead

AdcRead value is placed on the heartRateBpm and is transferred over BLE to dongle. I use BTool to read values and maximum value which I can get is FF. Is it possible to extend this data area to 16 bits and how this is achieved? I've tried various configurations to to achieve this but none of them have worked so I'm turning to you fellow forum members.

Any guidelines how to implement this properly would be appreciated.

regards

Ville

over 12 years ago

0 Greenja over 12 years ago

Guru 22270 points

Hello Ville,

There are examples in the SensorTag folder in the BLE v1.3. You can look at the profile for the irtempservice.c.

The data is sent out as 4 bytes. Two bytes are enough for the ADC, unless you want to decimal adjust the ADC conversion. In that case, you will use 4 bytes.

Thanks,

0 Ville Tikkanen over 12 years ago in reply to Greenja

Prodigy 30 points

Hello,

thanks for your reply. I Didnt even know about those secrets behind SensorTag folder :). They sure did gave me a push to right direction!

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Sending larger than 8bit ADC values using heartrateBpm