A sensor for measuring pulse oximetry and heart rate in one simple package.
Measuring heart rate electronically can be a tricky thing even though doing it manually with your fingers and a stopwatch is so easy. To simplify things we have the MAX30100 pulse oximetry and heart rate monitor! Two functions in one package that allows you to digitize your vital signals. This sensor has two on board regulators allowing you to feed it anywhere between 1.8 to 5.5VDC and can be put into a low power mode through software to reduce power consumption.
Note: A flaw has been found in the PCB layout. The fix is easy to implement (see links), but until we have fresh stock, we are blowing these out at attractive "I'm gonna fix this myself" rates.