TCP-IP communication scale driver

ROS driver for UC1 PEMU scale

TCP-IP address

Parameters

<!-- Desired scale IP -->
<arg name="server_ip" default="10.60.0.102" />
<!-- Desired port -->
<arg name="server_port" default = "1433" />

Fixed msgs

    readWeight_msg = b"q%\r\n"
    tareMachine_msg = b"q\"\r\n"

Services

    ~read_weight (getWeight)
    ~tare_machine (std_srvs/Trigger)
    ~send_string (robotnik_msg/SetString)
    ~read_string (std_srvs/Trigger)
    ~open_connection (std_srvs/Trigger)
    ~close_connection (std_srvs/Trigger)