Arduino multiple software serial ports

Pick a logical time to switch. This example switches ports when there is nothing. Needed for native USB port only. Contribute to Arduino Join the community and suggest improvements to this article via GitHub.

Make sure to read out contribution policy before making your pull request. The version of SoftwareSerial included in 1. AltSoftSerial overcomes a number of other issues with the core SoftwareSerial , but has it's own limitations. Refer to the AltSoftSerial site for more information. Software Serial Example : Use this Library Two Port Receive : Work with multiple software serial ports.

Enables the selected software serial port to listen. Only one software serial port can listen at a time; data that arrives for other ports will be discarded. Any data already received is discarded during the call to listen unless the given instance is already listening.

SoftwareSerial::listen Manual Page. Sign up to join this community. The best answers are voted up and rise to the top. Stack Overflow for Teams — Collaborate and share knowledge with a private group. Create a free Team What is Teams? Learn more. Ask Question. Asked 4 years, 5 months ago. Active 4 years, 5 months ago. Viewed 14k times. Improve this question.

Why are you beginning and ending the object each time instead of just beginning once? Ignacio, Software serial is only capable of one connection at a time, so it must be closed before I switch to a different port. Problem is my attempt to close it breaks the code. No, it is capable of only receiving on one connection at a time.