CT Clamp few sample

ESPHome
1

Hi!
I am trying to create a node to measure the mains of the house. I use an ESP 32 with an ADS1115. I am not getting a good readings. I think I getting few samples to get a decent value. The valuse are countiously changing. I tried to increase the sample duration to 1000ms from 200 ms, but not helped.

Any suggestion?

Log:

[D][ct_clamp:038]: 'A0 - Raw' - Raw AC Value: nanA after 7 different samples (7 SPS)
[D][sensor:127]: 'A0 - Raw': Sending state nan A with 5 decimals of accuracy
[D][ct_clamp:038]: 'A0 - Raw' - Raw AC Value: 0.000A after 7 different samples (7 SPS)
[D][sensor:127]: 'A0 - Raw': Sending state 0.00032 A with 5 decimals of accuracy
[D][ct_clamp:038]: 'A0 - Raw' - Raw AC Value: 0.001A after 5 different samples (5 SPS)
[D][sensor:127]: 'A0 - Raw': Sending state 0.00054 A with 5 decimals of accuracy

Settings:

i2c:

  sda: GPIO21
  scl: GPIO22
  scan: true
  setup_priority: -100.0
   
ads1115:
  address: 0x48
  # Needed for CT clamp
  continuous_mode: on
  id: ads0


# Example configuration entry
sensor:

  - platform: ads1115
    multiplexer: 'A0_GND'
    gain: 6.144
    name: "A0 - Voltage"
    accuracy_decimals: 5
#    internal: True
    id: ads_a0
    ads1115_id: ads0
    
 

  - platform: ct_clamp
    # 1V/30A clamp
    sensor: ads_a0
    id: raw0
    name: "A0 - Raw"
    sample_duration: 1000ms
    update_interval: 2000ms
    accuracy_decimals: 5
    # calibrate with a multimeter
    filters: 
      # RAW A -> Calibrated A
      - calibrate_linear: 
        - 0 -> 0
        - 1 -> 1
2

Why you think they are not good? You are measuring current around zero with 0.01mA accuracy_decimals. No sense. Try to measure few amps with 3 decimals
Esphome has many filters to get nicer / more stable output.