# Aiuto per la libreria Software Serial **URL:** \ **Category:** Software\ **Created:** [November 25, 2025, 9:17pm UTC](https://forum.arduino.cc/t/aiuto-per-la-libreria-software-serial/1416373 "2025-11-25T21:17:27Z")\ **Posts on this page:** 7\ **Page:** 1
**Author:** ![mksamuele97](https://dub1.discourse-cdn.com/arduino/user_avatar/forum.arduino.cc/mksamuele97/32/1033540_2.png) [@mksamuele97](https://forum.arduino.cc/u/mksamuele97)\ **Post date:** [November 25, 2025, 9:17pm UTC](https://forum.arduino.cc/t/aiuto-per-la-libreria-software-serial/1416373/1 "2025-11-25T21:17:27Z")
Ciao a tutti! 🥲 Lo so che è imbarazzante ma non riesco a trovare in rete la libreria Software Serial per le schede Arduino Nano (Atmega328P) o Mega... Ho provato qui: [https://docs.arduino.cc/learn/built-in-libraries/software-serial/](https://docs.arduino.cc/learn/built-in-libraries/software-serial/) E non funziona il link... e non c'è nessuna voce che va su gitHub 🙄 Se scrivo semplicemente "Software Serial Arduino" mi escono fuori mille librerie per schede Teensy, STM32, ESP32 ecc ma non per le schede Arduino AVR... Ne avrei bisogno ☹ Grazie a tutti!!! EDIT: ho provato questa \> [GitHub - sirleech/NewSoftSerial: Forked for version control on GIT](https://github.com/sirleech/NewSoftSerial) e questa \> [SoftwareSerial Library, DO NOT USE. NewSoftSerial works much better.](https://www.pjrc.com/teensy/td_libs_SoftwareSerial.html) ma entrambe non danno errore di compilazione 🙄 Manca il file: #include \ Ho letto sul forum questo: > [@ARDUINO 1.0 - error: WConstants.h: No such file or directory](https://forum.arduino.cc/t/arduino-1-0-error-wconstants-h-no-such-file-or-directory/83843/5): > > Below is the code of wire.h but where are the files inttypes.h & Stream.h located? Are in these files the send() & receive() that have to be replaced?thx! #ifndef TwoWire\_h #define TwoWire\_h #include \ #include "Stream.h" #define BUFFER\_LENGTH 32 class TwoWire : public Stream {  private:    static uint8\_t rxBuffer[];    static uint8\_t rxBufferIndex;    static uint8\_t rxBufferLength;    static uint8\_t txAddress;    static uint8\_t txBuffer[];    static uint8\_t txBufferIndex;… e l'utente system dice: Your problem should be solved if you look up this solution at [King Au's web page - Cannot find WConstants.h](https://sites.google.com/site/kingauswebpage/my-projects/cannot-find-wconstants-h) 🙂 _"When compile an Arduino Library, it fails to compile with the message:_ _error: WConstants.h: No such file or directory_ _The solution is to delete the line_ _#include "WConstants.h"_ _and then in the .h file, add the following:_ _#if ARDUINO \>= 100_ _#include "Arduino.h"_ _#else_ _#include "WProgram.h"_ _#endif_ _This way, the code will compile, and it will be compatible to Arduino 0023 and 1.0 versions."_ Ho fatto come hanno detto ma poi escono un sacco di altri errori 🥺 Mi sembra veramente assurdo che in 2 ore 😠non sia riuscito ancora a trovare una libreria funzionante... ---
**Author:** ![Salvorhardin](https://dub1.discourse-cdn.com/arduino/user_avatar/forum.arduino.cc/salvorhardin/32/469189_2.png) [@Salvorhardin](https://forum.arduino.cc/u/Salvorhardin)\ **Post date:** [November 25, 2025, 9:55pm UTC](https://forum.arduino.cc/t/aiuto-per-la-libreria-software-serial/1416373/2 "2025-11-25T21:55:12Z")
Veramente non capisco i tuoi problemi Cosa te ne fai di una soft serial per una mega, che ha 4 seriali hw? La uno e la nano possono usare la stessa soft serial, quella della uno Perché ti fai del male da solo installando librerie dichiaratamente obsolete? ---
**Author:** ![mksamuele97](https://dub1.discourse-cdn.com/arduino/user_avatar/forum.arduino.cc/mksamuele97/32/1033540_2.png) [@mksamuele97](https://forum.arduino.cc/u/mksamuele97)\ **Post date:** [November 25, 2025, 10:09pm UTC](https://forum.arduino.cc/t/aiuto-per-la-libreria-software-serial/1416373/3 "2025-11-25T22:09:58Z")
Avrei bisogno della libreria per la scheda Nano. Il fatto che ho citato la Mega era per far capire che mi serve quella classica per i chip AVR... 😐 Dove posso trovare la libreria per la uno? E quindi per la nano? GRAZIE ! 🙃 ---
**Author:** ![ilguargua](https://dub1.discourse-cdn.com/arduino/user_avatar/forum.arduino.cc/ilguargua/32/901053_2.png) [@ilguargua](https://forum.arduino.cc/u/ilguargua)\ **Post date:** [November 26, 2025, 6:42am UTC](https://forum.arduino.cc/t/aiuto-per-la-libreria-software-serial/1416373/4 "2025-11-26T06:42:06Z")
> [@mksamuele97](#): > > Dove posso trovare la libreria per la uno? E’ già installata insieme al core [AVR](https://github.com/arduino/ArduinoCore-avr/tree/master/libraries), non hai bisogno di installare altro, basta che metti : ```arduino #include ``` all’inizio del tuo sketch. Ciao, Ale. ---
**Author:** ![gpb01](https://dub1.discourse-cdn.com/arduino/user_avatar/forum.arduino.cc/gpb01/32/830685_2.png) [@gpb01](https://forum.arduino.cc/u/gpb01)\ **Post date:** [November 26, 2025, 6:55am UTC](https://forum.arduino.cc/t/aiuto-per-la-libreria-software-serial/1416373/5 "2025-11-26T06:55:53Z")
... l documentazione aggiornata si trova [QUI](https://github.com/per1234/docs-content/blob/7b88e8630795f2c24bbae4d2531eb813cef502f3/content/learn/07.built-in-libraries/04.software-serial/software-serial.md) su github. Fossi in te, io userei la molto più efficiente [AltSoftwareSerial](https://www.pjrc.com/teensy/td_libs_AltSoftSerial.html) 😉 Guglielmo ---
**Author:** ![mksamuele97](https://dub1.discourse-cdn.com/arduino/user_avatar/forum.arduino.cc/mksamuele97/32/1033540_2.png) [@mksamuele97](https://forum.arduino.cc/u/mksamuele97)\ **Post date:** [December 1, 2025, 10:29pm UTC](https://forum.arduino.cc/t/aiuto-per-la-libreria-software-serial/1416373/6 "2025-12-01T22:29:49Z")
Ohhhhhhhhhh Grazie ho fatto il solito errore di dare per scontato che fosse una libreria esterna! Grazie a tutti! 🥰 ---
**Author:** ![system](https://dub1.discourse-cdn.com/arduino/user_avatar/forum.arduino.cc/system/32/1140315_2.png) [@system](https://forum.arduino.cc/u/system)\ **Post date:** [May 30, 2026, 10:30pm UTC](https://forum.arduino.cc/t/aiuto-per-la-libreria-software-serial/1416373/7 "2026-05-30T22:30:32Z")
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