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How to use Serial1 on Arduino PLCs?

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on 4/8/21, 4:13 AM 78 views

How can I use Software Serial on an Arduino 21+? When including the SoftwareSerial.h I don't know which RX and TX pins to use.


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Industrial Shields Forum user

Guillem Cura Marti

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--Guillem Cura Marti--
Guillem Cura Marti
On 4/8/21, 6:32 AM

In order to work with the Software Serial we reccomend you using the SPI pins [50 (MISO), 51 (MOSI) or 52 (SCK)] for the RX and any of the I2C pins if they are not being used or Pin 2 and Pin 3 for the TX. Take in mind that if using multiple software serial ports, only one can receive data at a time. On the following blog you can check out how to work with the Software Serial using our devices:

I hope this helps!


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Asked: 4/8/21, 4:13 AM
Seen: 78 times
Last updated: 4/8/21, 6:32 AM