usb

Documentation

Overview

Usb works as en Echo Server on the second USB serial port, writting back all received data. Additionally, it logs all I/O transaction on the system console (first USB serial port). You can talk to it using a terminal emulator program like Putty (Windows) or picocom (Linux, Mac):

# Show console logs:
cat /dev/ttyACM0

# Talk to this program:
picocom --imap crcrlf /dev/ttyACM1

Try copy/paste more text to the terminal emulator window to see slightly longer than single-byte transactions.

See also the usbserial example which does the same in much simpler way, using the usbserial package.