search

oxullo / Arduino-MAX30100

Arduino library for MAX30100, integrated oximeter and heart rate sensor
GNU General Public License v3.0
192 stars 135 forks source link

Extracting Temperature from the MAX30100 #9

Closed slucero1124 closed 7 years ago

slucero1124 commented 8 years ago

I didn't see any provisions in your library for extraction of the temperature measured by the sensor. Is that correct, or am I missing it? How might I go about adding that functionality?

Thanks, Steven

oxullo commented 7 years ago

Hey @slucero1124 , it's correct, there's currently no code to get a temperature readout from the sensor. The tricky part is that the readout is asynchronous: a flag must be set and checked for it to be cleared before reading the temperature registers. I don't have a breakout at hand at the moment, but I will for the weekend. I'll see if I have some time to implement the temperature readout, probably it's faster than hinting how to do it :)

What I'd do, keeping the current polling fashion, is to set the 0x06.TEMP_EN (page 15 of the DS) and poll it until it clears. At this point the temperature can be assembled using the two registers 0x16, 0x17, page 18).

oxullo commented 7 years ago

@slucero1124 check b2fa5675175d692007cd71f76e3324fb4b2df41b