ESPHome – Esp32.co.uk

ESPHome, Home Assistant Integration, Troubleshooting & Tips

ESP32 Relay Boot Glitches: Active-Low Inputs, Pull Resistors and Safe Startup

Stop ESP32 relays clicking during boot and reset. Active-low inputs, restore_mode, pull resistors, strapping pins, power issues and safe ESPHome startup.

panakos
25 September 2026

ESPHome, Home Assistant Integration, Sensors & Components

PCA9685 with ESP32 and ESPHome: 16-Channel PWM for Servos and LEDs

Use the PCA9685 with ESP32 and ESPHome for 16 channels of hardware PWM. Covers servo power, 50 Hz control, LED dimming, Home Assistant and troubleshooting.

panakos
25 September 2026

ESPHome, Home Assistant Integration, Sensors & Components

MCP23017 with ESP32 and ESPHome: 16 Extra GPIOs over I²C

Add 16 digital GPIOs to an ESP32 with the MCP23017 I2C expander. ESPHome wiring, addresses, pull-ups, interrupts, multiple chips, Home Assistant and troubleshooting.

panakos
25 September 2026

ESPHome

MAX31856 with ESP32 and ESPHome: Thermocouple Wiring, Types and Temperature Monitoring

Connect a MAX31856 thermocouple converter to ESP32 with SPI and ESPHome. Includes K/J/T probe wiring, YAML, multiple probes, Home Assistant alerts and fault diagnosis.

panakos
24 September 2026

ESPHome, Home Assistant Integration, Sensors & Components

ENS160 with ESP32 and ESPHome: VOC, eCO₂ and Air Quality Index Explained

Wire the ENS160 to ESP32, configure ESPHome with AHT20 temperature/humidity compensation, and interpret VOC, estimated eCO2 and the sensor’s 1–5 AQI correctly in Home Assistant.

panakos
24 September 2026

Energy Monitoring, ESPHome

PZEM-017 with ESP32 and ESPHome: RS485 DC Energy Monitoring

For a 12 V or 24 V solar system, an off-grid battery, or a DC distribution panel, watching the instantaneous voltage tells only part of the story. You may also want to know the current passing through a load, its…

panakos
24 September 2026

Energy Monitoring, ESPHome

INA260 with ESP32 and ESPHome: DC Current, Voltage and Power Without an External Shunt

Build a safe INA260 current, voltage and power monitor with ESP32, ESPHome and Home Assistant. Includes integrated-shunt wiring, limitations and energy tracking.

panakos
24 September 2026

ESPHome, Sensors & Components

MAX17043 with ESP32 and ESPHome: LiPo Battery Percentage, Voltage and Deep Sleep

Build a reliable ESP32 LiPo monitor with the MAX17043 fuel gauge and ESPHome. Safe 3.3 V I²C wiring, battery percentage, Home Assistant alerts and deep-sleep best practices.

panakos
24 September 2026

ESPHome

INA3221 with ESP32 and ESPHome: Three-Channel DC Power Monitoring

Wire an INA3221 to ESP32 and ESPHome for three DC current, voltage and power readings; choose shunts and add Home Assistant energy tracking.

panakos
24 September 2026

ESPHome, Sensors & Components

INA226 with ESP32 and ESPHome: DC Voltage, Current, Power and Energy Monitoring

Build an INA226 DC current, voltage and power monitor with ESP32 and ESPHome. Safe 3.3 V I²C wiring, shunt resistor selection, complete YAML and Home Assistant energy integration.

panakos
24 September 2026