Hello! I have a question regarding Pulse and Oxen in Blood Sensor for e-health Platform (not PRO). The module has a port for connecting e-health shield. I just wonder the output signal from this port. (maybe digital output) I found the two pins that are placed on the side are GND and VDD, respectively. I guess that the other pins, or 8 pins of 10 pins, is related to operating 7 segments that pulse and SpO2. Or maybe UART. Please, know me the specification about the pin distribution. I'm looking forward to hearing from you. Thank you.
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