[SOLVED] CmdLine on TCP: help template_value

Configuration
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1

Hi Guys, i’m trying to work with a webrelay using raw TCP commands. (I know I could use node red, but I don’t want to setup the whole node environment only to on/off a relay.
This is my script:

switch:
    name: "Pompa P0b"
    unique_id: "pump_termo_p0"
    scan_interval: 20
    command_on: echo -n -e '\x31\x05\x01\x00\x00\x00\x00\' | nc 192.168.1.16 18165
    command_off: echo -n -e '\x31\x05\x00\x00\x00\x00\x00\' | nc 192.168.1.16 18165
    command_state: echo -n -e '\x33\x05\' | nc 192.168.1.16 18165
    value_template: "{{ value[0] == '1' }}"

IT works, I mean, it correctly on/off the relay but…

  1. Every time I manually switch on I see a popup message like this:
    Utf_8
    Utf_8924×128 5.89 KB

And honestly speaking, I don’t understand why

  1. The command state doesn’t work. I mean, something goes wrong interpreting the result
    Using the Packet send utility I see that the relay answers to my state request with 5 bytes:
01 00 80 00 30

where the first byte is the status. So, into my value template I should compare only the first value… But I suppose that something is wrong in my template…

Any suggesitons?

2

Found and solved the problem.
Here is the new code for value_template and command_state, in case of in the future someone has the same problem:

command_state: echo -n -e '\x33\x05\' | nc 192.168.1.16 18165 | xxd -p
    value_template: "{{ value[1] == '1' }}"