Ina226 level setting

ESPHome
1

I use the ina226 but it only shows 0.0025 V instead of 12 V … What am I doing wrong ?

Do I have to add any multiplier to the file ?

Or should the part show the applied voltage (and current) directly and correctly ?

2

Where do you use it?

In ESPHome?

We are not very good mind readers.

If it is ESPHome I suspect you are looking at the shunt voltage instead of the bus voltage.

Share your config.

3

Hello Tom,

Thanks for the reply … yes, I actually use the shunt voltage with the ina226 …bus voltage with the ins219.

But the problem has changed with the last ESP Home update, because now I get the error with both the 226 and the 219 that the modules are no longer recognized at all. Only the 3221 is still working.

[14:32:28][C][i2c.arduino:071]: I2C Bus:
[14:32:28][C][i2c.arduino:072]: SDA Pin: GPIO4
[14:32:28][C][i2c.arduino:073]: SCL Pin: GPIO5
[14:32:28][C][i2c.arduino:074]: Frequency: 50000 Hz
[14:32:28][C][i2c.arduino:086]: Recovery: bus successfully recovered
[14:32:28][I][i2c.arduino:096]: Results from i2c bus scan:
[14:32:28][I][i2c.arduino:098]: Found no i2c devices!
[14:32:28][C][ina226:087]: INA226:
[14:32:28][C][ina226:088]: Address: 0x40
[14:32:28][E][ina226:091]: Communication with INA226 failed!
[14:32:28][E][component:082]: Component ina226.sensor is marked FAILED

[14:39:39][C][i2c.arduino:071]: I2C Bus:
[14:39:39][C][i2c.arduino:072]: SDA Pin: GPIO4
[14:39:39][C][i2c.arduino:073]: SCL Pin: GPIO5
[14:39:39][C][i2c.arduino:074]: Frequency: 50000 Hz
[14:39:39][C][i2c.arduino:086]: Recovery: bus successfully recovered
[14:39:39][I][i2c.arduino:096]: Results from i2c bus scan:
[14:39:39][I][i2c.arduino:102]: Found i2c device at address 0x40
[14:39:39][C][ina219:133]: INA219:
[14:39:39][C][ina219:134]: Address: 0x40
[14:39:39][E][ina219:137]: Communication with INA219 failed!
[14:39:39][E][component:082]: Component ina219.sensor is marked FAILED

I have now replaced the modules several times with new ones … but I can no longer get them to work.

The 226 is not even recognized on the i2c, but the 219 is.

My captive portal looks like this:

captive_portal:

i2c:
  sda: 4 #D2
  scl: 5 #D1
  scan: true
  id: bus_a

sensor:
  - platform: ina226
    address: 0x40
    shunt_resistance: 0.1 ohm
    max_current: 3.2A

    adc_time: 140us
    adc_averaging: 128
    update_interval: 60s
    current:
      name: "INA226 Current"
    power:
      name: "INA226 Power"
    bus_voltage:
      name: "INA226 Bus Voltage"
    shunt_voltage:
      name: "INA226 Shunt Voltage"



captive_portal:

i2c:
  sda: 4 #D2
  scl: 5 #D1
  scan: true
  id: bus_a

sensor:
  - platform: ina219
    address: 0x40
    shunt_resistance: 0.1 ohm
    current:
      name: "INA219 Current"
    power:
      name: "INA219 Power"
    bus_voltage:
      name: "INA219 Bus Voltage"
    shunt_voltage:
      name: "INA219 Shunt Voltage"
    max_voltage: 32.0V
    max_current: 3.2A
    update_interval: 6s

I really don’t know, what it all about cause the ESP units are consuming day after day and don’t work really reliable … every up-date brings surprises … and the ESPHome documentation doesn’t cover much regarding these little TI devices.

4

Moved to the correct category. Please do this yourself in future so we don’t have to guess what you are talking about.

5

HI! I implemented esp32 with ina226. I would like to add a mAh counter. do you know how to do it? Thank you.

Example configuration entry

sensor:

  • platform: ina226
    address: 0x40
    shunt_resistance: 0.079 ohm
    current:
    name: “INA226 Current”
    power:
    name: “INA226 Power”
    bus_voltage:
    name: “INA226 Bus Voltage”
    shunt_voltage:
    name: “INA226 Shunt Voltage”
    max_current: 3.2A
    update_interval: 0.3s