big difference between IC1 voltage and IC2

[p3ck]

I'm clearly doing something wrong.

I'm currently just experimenting with a split extension cord and a kill-a-watt to make sure I'm reading accurately. I have 2 100 amp clamps that do show .44 amps when a 60 watt lightbulb is plugged in. (matched the kill-a-watt reading).

But I get a crazy 655 volt reading on IC1, IC2 shows 114

I have not cut any traces on the 6 channel board, I understand that if I want accurate readings from the split phase I would need to power via the second transformer which would be on the other phase. But I didn't think this would be that off?

realistically I am thinking I will just use the voltage value from IC2 and assume my other phase is close to that..

Here is my config:

`substitutions:

Change the disp_name to something you want

disp_name: 6C

Interval of how often the power is updated

update_time: 10s

Current Transformers:

20A/25mA SCT-006: 11143

30A/1V SCT-013-030: 8650

50A/1V SCT-013-050: 15420

80A/26.6mA SCT-010: 41660

100A/50ma SCT-013-000: 27518

120A/40mA: SCT-016: 41787

200A/100mA SCT-024: 27518

current_cal: '27518'

Jameco 9VAC Transformer: 42620

voltage_cal: '42620'

esphome:
name: "esphome-bsmnt-9c8adc"

esp32:
board: esp32dev
framework:
type: arduino

mqtt:

broker: !secret mqtt_broker

username: !secret mqtt_user

password: !secret mqtt_pass

Enable logging

logger:

Enable Home Assistant API

api:

ota:

web_server:
port: 80

spi:
clk_pin: 18
miso_pin: 19
mosi_pin: 23

sensor:

• platform: wifi_signal
  name: ${disp_name} WiFi
  update_interval: 60s
  #IC1
• platform: atm90e32
  cs_pin: 5
  phase_a:
  voltage:
  name: ${disp_name} Volts A
  id: ic1Volts
  accuracy_decimals: 1
  current:
  name: ${disp_name} CT1 Amps
  id: ct1Amps
  gain_voltage: ${voltage_cal}
  gain_ct: ${current_cal}
  frequency:
  name: ${disp_name} Freq A
  line_frequency: 60Hz
  gain_pga: 1X
  update_interval: ${update_time}
  #IC2
• platform: atm90e32
  cs_pin: 4
  phase_c:
  voltage:
  name: ${disp_name} Volts B
  id: ic2Volts
  accuracy_decimals: 1
  current:
  name: ${disp_name} CT6 Amps
  id: ct6Amps
  gain_ct: ${current_cal}
  frequency:
  name: ${disp_name} Freq B
  line_frequency: 60Hz
  gain_pga: 1X
  update_interval: ${update_time}

#Watts per channel

• platform: template
  name: ${disp_name} CT1 Watts
  id: ct1Watts
  lambda: return id(ct1Amps).state * id(ic1Volts).state;
  accuracy_decimals: 0
  unit_of_measurement: W
  device_class: power
  update_interval: ${update_time}
• platform: template
  name: ${disp_name} CT6 Watts
  id: ct6Watts
  lambda: return id(ct6Amps).state * id(ic2Volts).state;
  accuracy_decimals: 0
  unit_of_measurement: W
  device_class: power
  update_interval: ${update_time}
  #Total Amps
• platform: template
  name: ${disp_name} Total Amps
  id: totalAmps
  lambda: return id(ct1Amps).state + id(ct6Amps).state ;
  accuracy_decimals: 2
  unit_of_measurement: A
  device_class: current
  update_interval: ${update_time}
  #Total Watts
• platform: template
  name: ${disp_name} Total Watts
  id: totalWatts
  lambda: return id(totalAmps).state * id(ic1Volts).state;
  accuracy_decimals: 1
  unit_of_measurement: W
  device_class: power
  update_interval: ${update_time}
  #kWh
• platform: total_daily_energy
  name: ${disp_name} Total kWh
  power_id: totalWatts
  filters:
  • multiply: 0.001
    unit_of_measurement: kWh
    device_class: energy
    state_class: total_increasing
    switch:
• platform: restart
  name: ${disp_name} Restart
  time:
• platform: sntp
  id: sntp_time

wifi:
ssid: !secret wifi_ssid
password: !secret wifi_password
`

[p3ck]

I figured this out with a little help on the discord channel.

I had the wrong voltage_cal for my revision of the 6 channel board. I changed from voltage_cal: '42620' to voltage_cal: '7305' and that fixed it. So pay attention to the examle configs and the version of the board you have.

[CircuitSetup]

Thanks for following up! I'm glad you were able to figure it out!