Our team is developing a SPO2 measurement instruments by ADPD144. However, several problems were found.
The first one, the optical sensor VREF voltage ac coupling measurement was a sawtooth wave;
the second, through the FIFO continuous read the IR and RED 500 sampling data is change each channel;
Third, cover the sensor with your finger, the data is unchanged;
the fourth one, can you help provide demo code?