How to choice softserial library use on arduino project?Using Arduino Nano as USB HostMultiple SoftwareSerial...

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How to choice softserial library use on arduino project?


Using Arduino Nano as USB HostMultiple SoftwareSerial ports - how to handle the limitationsControlling HDMI Switch via RS232/UARTArduino OBD library and software serial libraryWhat's the difference between all the Software Serial Libraries? Which one is Arduino Nano compatible?Using SoftwareSerial library with EnableInterruptis using two UARTs wiser compared to I2C and UART with Arduino + Xbee + BNO055 Sensorusing UART bridge module to have serial communication through usb port of arduino nanoUnable to receive data when using multiple SoftSerial on Arduino NanoSeveral Software Serial Ports













1















I want to do a project that is multiple arduino communication through UART, that project project one of limit is using arduino nano(small and cheap), i need to set 4 serial port instance on nano to connect other nano to receive and write, i searched about serial port of nano that only have one hardware serial port, so after i found the many softserial library such as pre-bulite softserial and altsoftserial NeoSWSerial and NeoHWSerial and NeoICSerial.
Because library too libraries i don't know which one can help complete my project.










share|improve this question







New contributor




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  • what's wrong with the arduino softwareserial library? in what way does it not work for you?

    – Jaromanda X
    2 hours ago
















1















I want to do a project that is multiple arduino communication through UART, that project project one of limit is using arduino nano(small and cheap), i need to set 4 serial port instance on nano to connect other nano to receive and write, i searched about serial port of nano that only have one hardware serial port, so after i found the many softserial library such as pre-bulite softserial and altsoftserial NeoSWSerial and NeoHWSerial and NeoICSerial.
Because library too libraries i don't know which one can help complete my project.










share|improve this question







New contributor




Haseo is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.





















  • what's wrong with the arduino softwareserial library? in what way does it not work for you?

    – Jaromanda X
    2 hours ago














1












1








1








I want to do a project that is multiple arduino communication through UART, that project project one of limit is using arduino nano(small and cheap), i need to set 4 serial port instance on nano to connect other nano to receive and write, i searched about serial port of nano that only have one hardware serial port, so after i found the many softserial library such as pre-bulite softserial and altsoftserial NeoSWSerial and NeoHWSerial and NeoICSerial.
Because library too libraries i don't know which one can help complete my project.










share|improve this question







New contributor




Haseo is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.












I want to do a project that is multiple arduino communication through UART, that project project one of limit is using arduino nano(small and cheap), i need to set 4 serial port instance on nano to connect other nano to receive and write, i searched about serial port of nano that only have one hardware serial port, so after i found the many softserial library such as pre-bulite softserial and altsoftserial NeoSWSerial and NeoHWSerial and NeoICSerial.
Because library too libraries i don't know which one can help complete my project.







arduino-nano softwareserial uart






share|improve this question







New contributor




Haseo is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.











share|improve this question







New contributor




Haseo is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.









share|improve this question




share|improve this question






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asked 3 hours ago









HaseoHaseo

61




61




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Haseo is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.






Haseo is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.













  • what's wrong with the arduino softwareserial library? in what way does it not work for you?

    – Jaromanda X
    2 hours ago



















  • what's wrong with the arduino softwareserial library? in what way does it not work for you?

    – Jaromanda X
    2 hours ago

















what's wrong with the arduino softwareserial library? in what way does it not work for you?

– Jaromanda X
2 hours ago





what's wrong with the arduino softwareserial library? in what way does it not work for you?

– Jaromanda X
2 hours ago










1 Answer
1






active

oldest

votes


















4














I think your problem is that you need 4 serial ports.



With software serial that's just not going to happen:




  • SoftwareSerial can only receive on one serial port at any given time.

  • AltSoftSerial is limited to specific pins, and only one instance because there is only one set of pins

  • NeoSWSerial is kind of between the two. More efficient than SoftwareSerial, but still (as far as I can tell) limited to one instance (it uses a timer interrupt to drive the communication, so can use any pins)


If you need communication between lots of devices over serial then you will either need devices with more hardware serial ports (Arduino Mega, for example), or implement a multi-drop bus system (like RS-485) which only needs one serial port to communicate with many devices. Extra external hardware is required though.






share|improve this answer
























  • Good answer. Another hardware option is a SPI to UART expander.

    – caligari
    20 mins ago











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1 Answer
1






active

oldest

votes








1 Answer
1






active

oldest

votes









active

oldest

votes






active

oldest

votes









4














I think your problem is that you need 4 serial ports.



With software serial that's just not going to happen:




  • SoftwareSerial can only receive on one serial port at any given time.

  • AltSoftSerial is limited to specific pins, and only one instance because there is only one set of pins

  • NeoSWSerial is kind of between the two. More efficient than SoftwareSerial, but still (as far as I can tell) limited to one instance (it uses a timer interrupt to drive the communication, so can use any pins)


If you need communication between lots of devices over serial then you will either need devices with more hardware serial ports (Arduino Mega, for example), or implement a multi-drop bus system (like RS-485) which only needs one serial port to communicate with many devices. Extra external hardware is required though.






share|improve this answer
























  • Good answer. Another hardware option is a SPI to UART expander.

    – caligari
    20 mins ago
















4














I think your problem is that you need 4 serial ports.



With software serial that's just not going to happen:




  • SoftwareSerial can only receive on one serial port at any given time.

  • AltSoftSerial is limited to specific pins, and only one instance because there is only one set of pins

  • NeoSWSerial is kind of between the two. More efficient than SoftwareSerial, but still (as far as I can tell) limited to one instance (it uses a timer interrupt to drive the communication, so can use any pins)


If you need communication between lots of devices over serial then you will either need devices with more hardware serial ports (Arduino Mega, for example), or implement a multi-drop bus system (like RS-485) which only needs one serial port to communicate with many devices. Extra external hardware is required though.






share|improve this answer
























  • Good answer. Another hardware option is a SPI to UART expander.

    – caligari
    20 mins ago














4












4








4







I think your problem is that you need 4 serial ports.



With software serial that's just not going to happen:




  • SoftwareSerial can only receive on one serial port at any given time.

  • AltSoftSerial is limited to specific pins, and only one instance because there is only one set of pins

  • NeoSWSerial is kind of between the two. More efficient than SoftwareSerial, but still (as far as I can tell) limited to one instance (it uses a timer interrupt to drive the communication, so can use any pins)


If you need communication between lots of devices over serial then you will either need devices with more hardware serial ports (Arduino Mega, for example), or implement a multi-drop bus system (like RS-485) which only needs one serial port to communicate with many devices. Extra external hardware is required though.






share|improve this answer













I think your problem is that you need 4 serial ports.



With software serial that's just not going to happen:




  • SoftwareSerial can only receive on one serial port at any given time.

  • AltSoftSerial is limited to specific pins, and only one instance because there is only one set of pins

  • NeoSWSerial is kind of between the two. More efficient than SoftwareSerial, but still (as far as I can tell) limited to one instance (it uses a timer interrupt to drive the communication, so can use any pins)


If you need communication between lots of devices over serial then you will either need devices with more hardware serial ports (Arduino Mega, for example), or implement a multi-drop bus system (like RS-485) which only needs one serial port to communicate with many devices. Extra external hardware is required though.







share|improve this answer












share|improve this answer



share|improve this answer










answered 2 hours ago









MajenkoMajenko

68.2k43277




68.2k43277













  • Good answer. Another hardware option is a SPI to UART expander.

    – caligari
    20 mins ago



















  • Good answer. Another hardware option is a SPI to UART expander.

    – caligari
    20 mins ago

















Good answer. Another hardware option is a SPI to UART expander.

– caligari
20 mins ago





Good answer. Another hardware option is a SPI to UART expander.

– caligari
20 mins ago










Haseo is a new contributor. Be nice, and check out our Code of Conduct.










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