NAME

       usbrelay - control or query USB HID relays

SYNOPSIS

       usbrelay [OPTION...]  [ACTION...]

DESCRIPTION

       usbrelay  allows  for  querying and setting the state of USB HID electrical relays.  If no
       ACTION is passed, the state of all relays is printed to stdout.  RELID_N=[0|1] sets the N-
       th relay on module RELID to off or on.

       Multiple actions can be performed with one command

       eg:

       usbrelay REL0A_1=0 REL0A_2=1 REL0B_2=0...

       The  Relay  module ID can be changed on DCTTECH relays: RELID_0=NEWID sets the relay RELID
       to NEWID

OPTIONS

       -d, --debug
              Produce debugging output

       -q, --quiet
              Suppress output

       -?, --help
              Print the help menu

       --usage
              Print a usage description

       -V, --version
              Print the program version

SEE ALSO

       /usr/share/doc/usbrelay/README.md.gz