Hello, I would like to use two serial ports. I am using a RaspberryPi 3 and GrovePi. I have two sensors, one grove GPS and one Grove CO2 sensor. Both need to work on serial port. I tried with RaspberryPi Serial (’/dev/ttyUSB0’) and I don’t know which one to open for the Grove PI Serial https://www.dexterindustries.com/GrovePi/engineering/port-description/
Can we use these two serial ports simultaneously? if not, how I can connect and acquire data from both serial sensors?