Add information re: SoftwareSerial pins for all supported boards #1884
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per1234
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This was referenced Apr 19, 2024
content/learn/07.built-in-libraries/04.software-serial/software-serial.md
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Previously, the information about which pins could be used with the SoftwareSerial library was documented in prose form. Although reasonable in the context of only needing to cover a few boards as was the case at the time the documentation was established, this approach does not scale as it is necessary to add information for more boards over time. For this reason, the information is migrated to a table in preparation for addition of the missing documentation for the newer boards.
Some board names (e.g., "Nano") are potentially ambiguous to the reader. This is avoided without the introduction of verbosity by linking to the specific hardware page.
Since the time the SoftwareSerial library documentation was written, Arduino has created several new products supported by the library. The information about which pins can be used on these board must be documented. After this, the only currently active product with SoftwareSerial library support not included in the table is the Portenta C33. From the information in the library's "SerialEcho" example, it might be inferred that the same limitations as the UNO R4 boards apply to this board as well, but I was not able to verify this due to not having the hardware on hand.
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This looks good to me, however I will leave the approval to the writers in the PX team 🙏🏼 cc @jacobhylen @Hannes7eicher @BenjaminDannegard |
jhansson-ard
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What This PR Changes
Since the time the SoftwareSerial library documentation was written, Arduino has created several new products supported by the library. The information about which pins can be used on these board must be documented.
Although reasonable in the context of only needing to cover a few boards as was the case at the time the documentation was established, the previous prose format of the information does not scale well with the addition of information for more boards. For this reason, the information is migrated to a table.
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Additional Context
Since the website preview system is currently broken, I generated the website locally and took a screenshot of it to provide a preview of how the new content will be rendered:
Despite quite some efforts, I was not able to get transmit working on any pin on the Arduino 101, but I didn't find any information about whether or not that is expected (apart from the statement that the 101's variant of the library is "a work in progress"). For this reason, it would be irresponsible for me to add a claim that any pin can be used as TX on this board so I intentionally left that cell in the table empty.
I was able to verify that receive works as stated.
After this, the only currently active product with SoftwareSerial library support not included in the table is the Portenta C33. I was not able to determine which pins are supported on this board due to not having the hardware on hand. I created an issue to track that task: #1885
Related: