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Top Forums Shell Programming and Scripting Read line from serial device with BASH Post 302984912 by RudiC on Wednesday 2nd of November 2016 02:55:14 PM
Old 11-02-2016
Did you try a
Code:
read INPUT </dev/ttyACM0
echo $INPUT

You may need to redefine the delimiter for your reads (man bash):
Quote:
-d delim
The first character of delim is used to terminate the input line, rather than newline.
 

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UFTDI(4)						   BSD Kernel Interfaces Manual 						  UFTDI(4)

NAME
uftdi -- USB support for serial adapters based on the FT8U100AX and FT8U232AM chips SYNOPSIS
To compile this driver into the kernel, place the following lines in your kernel configuration file: device uftdi device ucom Alternatively, to load the driver as a module at boot time, place the following line in loader.conf(5): uftdi_load="YES" DESCRIPTION
The uftdi driver provides support for various serial adapters based on the FTDI FT2232C, FT8U100AX and FT8U232AM chips. The device is accessed through the ucom(4) driver which makes it behave like a tty(4). HARDWARE
The uftdi driver supports the following adapters: o B&B Electronics USB->RS422/485 adapter o Elexol USB MOD1 and USB MOD3 o HP USB-Serial adapter shipped with some HP laptops o Inland UAS111 o QVS USC-1000 o Buffalo PC-OP-RS / Kurouto-shikou KURO-RS universal remote o Prologix GPIB-USB Controller SEE ALSO
tty(4), ucom(4), usb(4) HISTORY
The uftdi driver appeared in FreeBSD 4.8 from NetBSD 1.5. BSD
November 22, 2006 BSD
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