Looking for cost effective arduino that supports good UART commucation


i need send text data on serial port using arduino uart.  in simple project, send text data on tx line , receive same data on other end using rx pin. 

i trying using 1 arduino uno board has 1 hardware uart.  seems uart shared usb.  can not use hardware uart supported on pins 0 , 1.  due limitation, started looking @ using software serial port.  basic testing, planning on looping tx rx.  learnt software serial port can not simulataneously transmit , receive data.


so @ point seems can not use 1 arduinno uno.  @ minimum need 2 arduino uno.  still this, have use in software serial mode.  can not use hardware serial mode shared usb. 

since need purchase second arduiino, know arduinio, should purchase.  seems arduino, megas has more 1 serial port.  better buy arduino mega? 

your feedback please

thanks.

considering arduino mega less $15 not sure why big angst.


Arduino Forum > Using Arduino > Networking, Protocols, and Devices (Moderator: fabioc84) > Looking for cost effective arduino that supports good UART commucation


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