RS-232 using mangoh yellow

Can I serial communicating by using mangOH yellow??

which I use manner??

You can use an IoT card for UART -> RS232.
Also, the 15 pin connector provided 2 wire UART at 3.3V TTL.
What’s your use case?

I’d like to connect with a mangoh yellow and other electronic devices via RS-232 and give them a set signal, but I don’t know what api I’m going to use to create an application.