How can we read (multiple) bits from registers

[PitinoB]

I need help with writing yaml code.
How can I read bits from registers?
Register 0x3104 return integer like 12610 or 12866.
I need to get values in table for that number.

Thanx

[davidrapan]

You can select specific bit with:

bit: {index}

added into entity description.

[PitinoB]

I dont know how to read bits from 0 to 4 and then get integer from 0 - 17 like in a table.
I tray with
lookup:

• bit; [0,1,2,3,4]

but not working

[davidrapan]

Show me full entity description and please don't forge to wrap the yaml snippet in ```{code}``` (It's simple, just select text which belongs to the yaml snippet and click on button which looks like this "<>").

[PitinoB]

- group: Alarm-State
  items:
    - name: "DSP State"
      update_interval: 5
      class: "enum"
      rule: 1 # unsigned 16
      registers: [0x3104]
      bit: 2

[PitinoB]

this reads single register and return value 0 or 1
but I want to read five registaers at once

[davidrapan]

Ah sure, I get it now! 😉 You need to use mask:

mask: 0x1F

[davidrapan]

And there is also another route you can take:

      - name: "Device Alarm"
        class: "enum"
        rule: 3
        registers: [0x0229, 0x022A]
        icon: "mdi:alert-outline"
        lookup:
          - key: 0
            value: "OK"
          - bit: [0, 1, 2, 3, 4]
            value: "{state_description}"
          - key: "default"
            value: "Error"

[PitinoB]

Thank You for your help and tips.
The example below works.

      - name: "DSP State DCDC"
        class: "enum"
        rule: 1 # unsigned 16
        registers: [0x3104]
        mask:
          0x0700 # bit   10  ,  9  ,  8
          #             1024 , 512 , 256
          #               4  ,  2  ,  1
        lookup:
          - key: 0 # 000 -> 0 -> 0
            value: "Standby"
          - key: 256 # 001 -> 1 -> 256
            value: "Charging"
          - key: 512 # 010 -> 2 -> 512
            value: "Discharging"
          - key: 768 # 011 -> 3 -> 768
            value: "Service"
          - key: 1024 # 100 -> 4 -> 1024
            value: "Test"