The two 4.7K pull-up resistors must be used when using I2C communication. We use the serial monitor to display the data received from the board and one interesting thing you might notice is that the ...

6 thoughts on “ Arduino Heart Rate Monitor ” Andrew says: September 25, 2011 at 11:25 am ooh pretty. Report comment. Reply. Anonymous says: September 25, 2011 at 11:29 am ...