ESPHome as a Smart Shunt

Egelyggard · March 15, 2023, 9:18pm

Hi
I have made battery shunt with ESPHome and INA219 and I have Volt Current and Power. It says minus Current when there is a load and plus Current when the battery is being charged. What I would like now is to find out how much is in the battery so that it counts up when it is being charged and down at load - I have tried with total_daily_energy but it does not look at whether it is plus or minus. Can any of you help me?

Mahko_Mahko · March 16, 2023, 9:21am

You might be able to adapt what Athom do for total energy here…

github.com

athom-tech/athom-configs/blob/main/athom-smart-plug-v2.yaml

substitutions:
  device_name: "athom-smart-plug-v2"
  friendly_name: "Athom Smart Plug V2"
  project_name: "athom.smart-plug-v2"
  project_version: "1.1"
  relay_restore_mode: RESTORE_DEFAULT_OFF

esphome:
  name: "${device_name}"
  name_add_mac_suffix: true
  project:
    name: "${project_name}"
    version: "${project_version}"

esp8266:
  board: esp8285
  restore_from_flash: true

preferences:
  flash_write_interval: 1min

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