Skip to main content

LonHand client library

Project description

LonHand client library

LonHand protocol implementation for USR-WP1 smart socket (one-channel relay) by USR IOT.

Product link


from lonhand import device

# create switch
switch = WifiRelay('')

# turn on

# get state
state = switch.is_on()

# turn off



55 AA - distinguishes a command, unlike for example the password which
        should be sent as is (with suffix 0D 0A)
00 03 - represents the length in bytes of the command (real) that follows,
        including the byte 00 (see below)
00    - fixed, reserved and not usable. However, it contributes to forming 
        the length in bytes of the command, for example in case of a device
        renaming command (which will contain the new name assigned): the
        length byte (and the checksum) will be recalculated also according
        to the length of the new name
02    - the actual command (ON)
01    - command parameter; in this case we are giving the ON command (02)
        and as a parameter the channel number to be switched on (01).
06    - checksum, and represents the sum (in HEX) of the parts: 
        (0x00 + 0x03 + 0x00 + 0x02 + 0x01) = 0x06


AA 55 - marks the message as a response
00 04 - response length
00    - reserved
82 01 - is the confirmation response to the ON command
01    - channel/port that was affected
88    - checksum: (0x00 + 0x04 + 0x00 + 0x82 + 0x01 + 0x01) = 0x88

Project details

Download files

Download the file for your platform. If you're not sure which to choose, learn more about installing packages.

Files for lonhand, version 0.4
Filename, size File type Python version Upload date Hashes
Filename, size lonhand-0.4-py3-none-any.whl (4.3 kB) File type Wheel Python version py3 Upload date Hashes View
Filename, size lonhand-0.4.tar.gz (2.7 kB) File type Source Python version None Upload date Hashes View

Supported by

Pingdom Pingdom Monitoring Google Google Object Storage and Download Analytics Sentry Sentry Error logging AWS AWS Cloud computing DataDog DataDog Monitoring Fastly Fastly CDN DigiCert DigiCert EV certificate StatusPage StatusPage Status page