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zorruno-homeassistant/esphome/esp-attobattery.yaml
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##########################################################################################
##########################################################################################
# BYD ATTO3 12V Battery Monitor
# Monitoring the status of a vehicle 12V battery with
# an esp8266 (D1 Mini). It will obviously only
# transmit when the vehicle is within wifi range.
# Voltage is measured with a resistor voltage divider
# into the analogue GPIO on the esp8266.
# https://zorruno.com/2022/vehicle-12v-battery-monitoring/
##########################################################################################
##########################################################################################
##########################################################################################
# SPECIFIC DEVICE VARIABLE SUBSTITUTIONS
# If NOT using a secrets file, just replace these with the passwords etc (in quotes)
##########################################################################################
substitutions:
# Device Naming
device_name: "esp-attobattery"
friendly_name: "Atto3 12V Battery Monitor"
description_comment: "Atto3 12V Battery Monitor (when home)"
device_area: "Garage" # Allows ESP device to be automatically linked to an 'Area' in Home Assistant.
# Project Naming
project_name: "Generic ESP8266.D1 Mini" # Project Details
project_version: "v1.0" # Project V denotes release of yaml file, allowing checking of deployed vs latest version
# Passwords & Secrets
api_key: !secret esp-api_key # unfortunately you can't use substitutions inside secrets names
ota_pass: !secret esp-ota_pass # unfortunately you can't use substitutions inside secrets names
static_ip_address: !secret esp-attobattery_ip
mqtt_command_main_topic: !secret mqtt_command_main_topic
mqtt_status_main_topic: !secret mqtt_status_main_topic
# MQTT LOCAL Controls
mqtt_device_name: "atto-battery"
mqtt_command_topic: "${mqtt_command_main_topic}/${mqtt_device_name}" # Topic we will use to command this locally without HA
mqtt_status_topic: "${mqtt_status_main_topic}/${mqtt_device_name}" # Topic we will use to view status locally without HA
# Device Settings
log_level: "INFO" # Define logging level: NONE, ERROR, WARN, INFO, DEBUG (Default), VERBOSE, VERY_VERBOSE
update_interval: "60s" # update time for for general sensors etc
wake_interval: "20s"
sleep_interval: "300s"
mqtt_fail_sleep: "1h" # If MQTT is unavailable after boot wait, sleep this long
##########################################################################################
# PACKAGES: Included Common Packages
# https://esphome.io/components/packages.html
##########################################################################################
packages:
#### WIFI, Network (Static/DHCP/IPV6 etc), Fallback AP, Safemode ####
common_wifi: !include
file: common/network_common.yaml
vars:
local_device_name: "${device_name}"
local_static_ip_address: "${static_ip_address}"
local_ota_pass: "${ota_pass}"
#### HOME ASSISTANT API (choose encryption or no encryption options) ####
common_api: !include
file: common/api_common.yaml
#file: common/api_common_noencryption.yaml
vars:
local_api_key: "${api_key}"
#### MQTT ####
common_mqtt: !include
file: common/mqtt_common.yaml
vars:
local_device_name: "${device_name}"
#### WEB PORTAL ####
common_webportal: !include common/webportal_common.yaml
#### SNTP (Only use if you want/need accurate timeclocks) ####
#common_sntp: !include common/sntp_common.yaml
#### DIAGNOSTICS Sensors ####
diag_basic: !include common/include_basic_diag_sensors.yaml
diag_more: !include common/include_more_diag_sensors.yaml
#diag_debug: !include common/include_debug_diag_sensors.yaml
#diag_resetcount: !include common/include_resetcount_diag_sensors.yaml
##########################################################################################
# ESPHome
# https://esphome.io/components/esphome.html
##########################################################################################
esphome:
name: ${device_name}
friendly_name: ${friendly_name}
comment: ${description_comment} #appears on the esphome page in HA
min_version: 2024.6.0
on_boot:
priority: 600
then:
# Default: do NOT deep sleep until explicitly enabled via MQTT
- deep_sleep.prevent: deep_sleep_1
- logger.log: "Deep sleep prevented by default on boot."
# Fail-safe: wait up to 30s for MQTT; if not connected, sleep longer (backoff)
- wait_until:
condition:
mqtt.connected:
timeout: 30s
- if:
condition:
not:
mqtt.connected:
then:
- logger.log: "MQTT unreachable after 30s -> entering FALLBACK sleep for ${mqtt_fail_sleep}."
- deep_sleep.enter:
id: deep_sleep_1
sleep_duration: ${mqtt_fail_sleep} # override only this cycle
else:
- logger.log: "MQTT connected; awaiting '${mqtt_command_topic}/deepsleep' command."
##########################################################################################
# ESP Platform and Framework
# https://esphome.io/components/esp8266.html
# https://esphome.io/components/esp32.html
##########################################################################################
esp8266:
board: d1_mini
framework:
version: latest #recommended, latest or dev
##########################################################################################
# ESPHome Logging Enable
# https://esphome.io/components/logger.html
##########################################################################################
logger:
level: "${log_level}" #INFO Level suggested, or DEBUG for testing
#baud_rate: 0 #set to 0 for no logging via UART, needed if you are using it for other serial things (eg PZEM)
#esp8266_store_log_strings_in_flash: false
#tx_buffer_size: 64
#############################################
# Enable Over the Air Update Capability
# https://esphome.io/components/ota.html?highlight=ota
#############################################
ota:
- platform: web_server # Uncomment if you want to be able to do OTA with the web interface
##########################################################################################
# MQTT COMMANDS
# This adds device-specific MQTT command triggers to the common MQTT configuration.
##########################################################################################
mqtt:
# Availability Topic
birth_message:
topic: ${mqtt_status_topic}/availability
payload: online
will_message:
topic: ${mqtt_status_topic}/availability
payload: offline
# Control deep sleep over MQTT
on_message:
- topic: ${mqtt_command_topic}/deepsleep
payload: "ON"
then:
- deep_sleep.allow: deep_sleep_1
- logger.log: "Deep sleep ALLOWED via MQTT. Device will sleep when run_duration elapses."
- topic: ${mqtt_command_topic}/deepsleep
payload: "OFF"
then:
- deep_sleep.prevent: deep_sleep_1
- logger.log: "Deep sleep PREVENTED via MQTT."
##########################################################################################
# Deep Sleep
# https://esphome.io/components/deep_sleep.html
##########################################################################################
deep_sleep:
id: deep_sleep_1
run_duration: ${wake_interval}
sleep_duration: ${sleep_interval}
##########################################################################################
# SENSOR COMPONENT
# https://esphome.io/components/sensor/
##########################################################################################
sensor:
- platform: adc
pin: A0
name: "Battery Voltage"
id: battery_voltage
update_interval: 4s
retain: true
filters:
- multiply: 3.3
- calibrate_linear:
- 3.11 -> 14.00
- 3.00 -> 13.50
- 2.89 -> 13.00
- 2.77 -> 12.50
- 2.67 -> 12.00
- 2.55 -> 11.50
- 2.45 -> 11.00
- 2.34 -> 10.50
- 2.22 -> 10.00
- 2.11 -> 09.50
- 2.00 -> 09.00
- delta: 0.05 # publish immediately if change >= 0.05 V
- throttle: 2s # avoid bursts if noisy
on_value:
then:
- mqtt.publish:
topic: "${mqtt_status_topic}/batteryvoltage"
qos: 1
retain: true
payload: !lambda |-
char buf[10];
snprintf(buf, sizeof(buf), "%.2f", x);
return std::string(buf);
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