ANT Forum

Hi,

I am new to ANT+ development, I am trying to connect to my vivosmart HR with my ANT USB stick.

Using the ANTwareII or SimulANT+, I could get HR data ONLY IF the vivosmart's heartrate broadcasting is ON.

May I know if I could still get the HR data if the broadcast mode of vivosmart set to OFF?

thanks in advance.      

Hi YipYip,

If the vivosmart HR is set to NOT broadcast ANT+ heartrate, there is no way for an ANT+ display to receive heart rate data. This is because the ANT wireless transmission cannot be received by a display unless the vivosmart transmits it. It's like if you don't turn WiFi on - you cannot connect to the internet.

Best,
BK      

Hi BK,

thanks for your info. I am new to ANT, I hope I could get more understanding here.

Unfortunately, broadcast mode reduces battery life drastically. But I have a project (PC app) that requires reading HR data from sensor periodically over several days (don't need the historical records, current reading is OK). Is the following approach feasible?

a. Pair the PC application (Slave) with a sensor (Master)
b. Slave connects to Master periodically (e.g. every 10 minutes)
c. Slave turns on the Master's broadcast mode (not sure if this is supported by the protocol)
d. PC application start another thread to get the broadcast HR data
e. Slave turns off the master's broadcast mode.

I read through the usage and protocol PDF and HR device profile PDF, but still have no clue on how to achieve it. Grateful if anyone could shed some light or give me a pointer to the right direction.

thanks


     

Hi YipYip,

Currently, there is no way native for to remotely enable broadcast mode on a vivosmart.

BK.      

Hi BK,

thanks very much. I might need to explore other ways then.