After upgrading to 2026.3 my esp8266 related sonsors are not available anymore in homeassistant.
In the log I found the following error:
WARNING Can't connect to ESPHome API for esp-aussentemp @ 10.10.10.10: esp-aussentemp @ 10.10.10.10: EOF received (SocketClosedAPIError)
Stepping back to 2026.2.4 immediately solves the problem (and the data is available again in HASS).
Configuration yaml is as follows:
esphome:
name: esp-aussentemp
esp8266:
board: nodemcu
# Enable logging
logger:
# level: NONE
# hardware_uart: UART0_SWAP
# Enable Home Assistant API
api:
encryption:
key: "..."
ota:
platform: esphome
password: "..."
wifi:
ssid: !secret wifi_ssid
password: !secret wifi_password
min_auth_mode: WPA2
power_save_mode: light
manual_ip:
static_ip: 10.10.10.10
gateway: 10.10.10.1
subnet: 255.255.255.0
use_address: 10.10.10.10
# Enable fallback hotspot (captive portal) in case wifi connection fails
ap:
ssid: "Esp-Aussentemp Fallback Hotspot"
password: "..."
captive_portal:
# Serial for RG-9
uart:
#rx_pin: GPIO3
#tx_pin: GPIO1
rx_pin: GPIO13
tx_pin: GPIO15
baud_rate: 9600
#dallas:
one_wire:
- platform: gpio
pin: GPIO2
sensor:
#- platform: dallas
- platform: dallas_temp
address: 0xd73cd2e381a47428
name: "Aussentemperatur"
- platform: adc
pin: VCC
name: "VCC Voltage"
- platform: hydreon_rgxx
model: "RG_9"
update_interval: 30s
moisture:
name: "rain"
# temperature:
# name: "RG9_temp"
binary_sensor:
- platform: hydreon_rgxx
too_cold:
name: "too cold"
lens_bad:
name: "lens bad"
any thoughts?
greetings,
Markus
